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Author Topic: A Conservative estimate on a new stunter  (Read 13583 times)

Online RC Storick

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Re: A Conservative estimate on a new stunter
« Reply #50 on: April 18, 2009, 07:41:13 AM »
In fact, a European member of the FAI F2B Judging/Scoring Committee said that the plethora of eastern European ARFs is causing them to consider reinstating the BOM. 

I had heard rumor about this and I hope they see the light.

Quote from: Bradley Walker
Begin holding breath...  1 2 3...now.

There are catching on.

If this event was truly about JUST flying we would all fly the same plane at the contest. One plane for forty guys.
Hey thats it! We need a contest where everyone flies the same plane. Lots cheaper. The guy who crashes has to pay for the plane.
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Offline Bradley Walker

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Re: A Conservative estimate on a new stunter
« Reply #51 on: April 18, 2009, 08:28:05 AM »
CL is cheap.  It can also be done "on the cheap" if need be.  When I was in college I had *no* money and I could still do it.

In fact, in some ways, it was more fun "making do" with whatever crap I could get.  

Of course, back in those days there was always someone telling me that I needed "better"---read that "more expensive"--- gear to be "really competitive".  

If I had a ST 46, then I would really need a "Mr. XXXX engine tuner guy" St 46 to "really get good engine runs".  Nobody ever got good engine runs before the engine tuner guys (later this was replaced by the custom engine builder guys).

-If I painted with spray cans from Autozone, my finishes could never be as good as if I painted with what that guy on that video uses.  I needed an air compressor, and spray guns, and 14 gallons of dope... blah, blah, blah...

-Then the pipe came along, and OOOOHHH, you had to have pipe!!!  No one could be "competitive" without a pipe!!!  Heck, the pipe marketing team would still be saying that today if they weren't getting beat on a regular basis by a guy without one.

-Wood props?  Those are for NOOBS!!!  You can't be "competitive" with one of those!!!  (see pipe marketing team above)  I actually had a former Nats champ tell me that the wood prop I was using would "burn up" my new PA 65.  {Interstingly, carbon props are DEAD NOW.  Bolly and Eather are no longer producing props.  What will the marketing team tell everyone now?}

Heck it did not matter what it was...  right down to what wheels you used, the type of bellcrank you had in your plane, or what fuel you burned...  there was always someone touting the "good stuff" that would make you "competitive".... and let's face it, at the upper levels of stunt there are lot of "gear snobs".  This is a judged sport.  It is just the way it is.  Some people feel it is an integral part of the being "elite" to have "elite gear".  There is a lot of emphasis on who's rig you promote or what product you use.  There are definite "camps" for "gear".  To some people, you cannot be cool without the right "gear uniform".

I am going backwards, I admit it.  I am doing less, not more.  I am attempting to maximize my fun/BS ratio when it comes to "gear".  I have had all the *GEAR*, it did not make anything more fun, or even make me more "competitive".  It just resulted in more hassle, expense, and typically *weight*.

You know what?  I will give credit where credit is due.  

I owe it all to Joe Gilbert and Bill Wilson.  

Joe can do more with a ARF Nobler and a $75 Brodak 40 using an old Rev Up prop than most anyone in District 8 can do with their rigs costing thousands of dollars.  He is very "competitive" and has more *fun* and *flies more* than just about anyone I know (except for Bill Wilson)...  and you know what?  He is getting scary good doing it.  

If this was a perfect world and computers judged the pattern, Joe's rig would *beat* the fancy big rigs because he can actually fly 45 degree maneuvers (something that appears to be lost in the judging world of today) with a very tight corner (what Sparky has been talking about) which garners no extra points whatsoever.

Next would be Bill Wilson.  Bill has been "competitive" for some time.  He does nothing "cool"...  on purpose.  He builds planes using stuff he buys at Home Depot and his best engine is one he bought for $40 at a swap meet.  Bill is the "anti gear snob".

Truth be told you get a Vector 40 ARF/LA 46 or a TF Nobler/Brodak 40 for $150 total and beat everyone... in a perfect world where computers did the judging.
"The reasonable man adapts himself to his environment. The unreasonable man adapts his environment to himself, therefore all progress is made by unreasonable men."
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Offline Bradley Walker

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Re: A Conservative estimate on a new stunter
« Reply #52 on: April 18, 2009, 08:29:28 AM »
If this event was truly about JUST flying we would all fly the same plane at the contest. One plane for forty guys.
Hey thats it! We need a contest where everyone flies the same plane. Lots cheaper. The guy who crashes has to pay for the plane.

Sounds like Old Time Stunt at the Nats...  (no BOM). 

Not fun.  Everyone hates it.
"The reasonable man adapts himself to his environment. The unreasonable man adapts his environment to himself, therefore all progress is made by unreasonable men."
-George Bernard Shaw

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Re: A Conservative estimate on a new stunter
« Reply #53 on: April 18, 2009, 09:12:45 AM »
"  I am going backwards, I admit it.  I am doing less, not more.  I am attempting to maximize my fun/BS ratio when it comes to "gear".  I have had all the *GEAR*, it did not make anything more fun, or even make me more "competitive".  It just resulted in more hassle, expense, and typically *weight*."



I prefer to think that you have just completed the circle and came back to a point that you made a good decision a while ago and you now have the knowledge to make it work.

Offline Dalton Hammett

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Re: A Conservative estimate on a new stunter
« Reply #54 on: April 18, 2009, 10:24:47 AM »
*************************************************************
       This is kind of interesting so I guess I throw in an opinion.  I don't think you can say any hobby or sport is more costly than another.   You can make any one of them as expensive or as inexpensive as you want to.  Before I became semi-retired I loved the planes, model railroading, guns, motorcycles, classic vehicles and even Guitars.  I ride an $8500 Honda - could just as easily have been a $30000 Harley.   In the gun cabinet I have a 30-06 Ruger bold action and a 300 H&H Browning Safari, both do just about the same thing.
        The note about the clothing  is a bit funny to me though, I did have someone make a comment to me two years ago at the Brodak meet that I really didn't dress like a control line flyer !!!!!  I'm not sure what I have to buy to change that ?????

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Online Matt Colan

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Re: A Conservative estimate on a new stunter
« Reply #55 on: April 18, 2009, 10:54:49 AM »
*************************************************************
        The note about the clothing  is a bit funny to me though, I did have someone make a comment to me two years ago at the Brodak meet that I really didn't dress like a control line flyer !!!!!  I'm not sure what I have to buy to change that ?????

Dalton H.

Just buy a bunch of Brodak or PAMPA shirts and soak them in castor oil  LL~
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Online Howard Rush

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Re: A Conservative estimate on a new stunter
« Reply #56 on: April 18, 2009, 11:30:25 AM »
"If this was a perfect world and computers judged the pattern, Joe's rig would *beat* the fancy big rigs because he can actually fly 45 degree maneuvers (something that appears to be lost in the judging world of today) with a very tight corner (what Sparky has been talking about) which garners no extra points whatsoever."

This appears to be the "My homebody (or myself) could win the Nats, but the judges are predjudiced against him/the color of his plane/his clothes."  argument. 

If you could make an automated stunt judging system, I'm sure the guys who have to recruit and train judges and print and tabulate scoresheets would gladly welcome it.  Go for it. Sparky says it's easy. 
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Online Howard Rush

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Re: A Conservative estimate on a new stunter
« Reply #57 on: April 18, 2009, 11:47:41 AM »
"The note about the clothing  is a bit funny to me though, I did have someone make a comment to me two years ago at the Brodak meet that I really didn't dress like a control line flyer !!!!!  I'm not sure what I have to buy to change that ?????"

That is puzzling to me, too.  Control line flyers do not dress uniformly.  It depends on the event, although at a fun-fly like the Brodak thing there may be more homogeneity.  Stunt flyers favor the Elvis-in-his-fat-days look.  Combat flyers appear as grass-stained aging hippies. Speed, racing, and carrier people are too few to make statistically significant conclusions about.   
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Offline Claudio Chacon

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Re: A Conservative estimate on a new stunter
« Reply #58 on: April 18, 2009, 12:28:03 PM »
I went to the World Championships last year.  There were some really nice airplanes, but most folks elected to save weight and build something functional.  Overall, the airplanes there were a lot less impressive that what you'd see at the US Nats or the NW Regionals.  Yes, there were ARFs. In fact, a European member of the FAI F2B Judging/Scoring Committee said that the plethora of eastern European ARFs is causing them to consider reinstating the BOM. 

I have flown a Yatsenko Shark in a stunt contest.  It flew well, and I did OK with it.   

Howard,
Can you please elaborate the flight performance differences (if any) between the Yatsenko "Shark" and your current "Impact"?
This will be a VERY interesting subject (may be worth a new thread...)
Thanks in advance,
Claudio.

Offline John Stiles

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Re: A Conservative estimate on a new stunter
« Reply #59 on: April 18, 2009, 01:11:32 PM »
Taking in everything that's been said[or hasn't] I'm beginning to form an opinion that the CL population is beginning to split right down the middle: rich guys on the right...poor guys on the left! Reminds me kinda of the Congress and life in general. I hope I'm wrong. HB~>
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Offline De Hill

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Re: A Conservative estimate on a new stunter
« Reply #60 on: April 18, 2009, 02:28:17 PM »
Taking in everything that's been said[or hasn't] I'm beginning to form an opinion that the CL population is beginning to split right down the middle: rich guys on the right...poor guys on the left! Reminds me kinda of the Congress and life in general. I hope I'm wrong. HB~>


Uh John,

Which side is flying the ARF'S? The Rich, or the Poor?          #^
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Offline John Stiles

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Re: A Conservative estimate on a new stunter
« Reply #61 on: April 18, 2009, 02:38:07 PM »

Uh John,

Which side is flying the ARF'S? The Rich, or the Poor?          #^
Somewhre towards the middle?? LL~ ;D
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Online Howard Rush

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Re: A Conservative estimate on a new stunter
« Reply #62 on: April 18, 2009, 02:45:35 PM »
The poor ain't flying Yatsenko ARFs.

I am not an expert on stunt plane flying qualities. My impression of the Shark relative to the Impact is that I could not corner the Shark as hard as I can the Impact.  That may just be a matter of control feel.  The amount of control input I give to corner the Impact was too much for the Shark, but I don't know if the actual turn radius was different.  Furthermore, Mr. Walker tells me that the amount of control input needed to corner my current Impact is too much.  

I only flew the Shark at the Sao Paulo contest last October in good conditions.  I don't know how it flies in the wind.  
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Online RC Storick

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Re: A Conservative estimate on a new stunter
« Reply #63 on: April 18, 2009, 02:56:33 PM »
Sounds like Old Time Stunt at the Nats...  (no BOM). 

Not fun.  Everyone hates it.

Thats my point. If we did away with the BOM in Stunt what would it become. Not fun. Everyone hates it?
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Online RC Storick

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Re: A Conservative estimate on a new stunter
« Reply #64 on: April 18, 2009, 02:59:05 PM »

Uh John,

Which side is flying the ARF'S? The Rich, or the Poor?          #^

That kinda depends on if you buy a Nobler ARF or a Yatsenko ARF at 4000.00!

Section 6 says

(Control Aerobatics additionally interprets that any model, that is pre-covered in the box is excluded from competition) copy and pasted from the book.
« Last Edit: April 18, 2009, 04:15:34 PM by Robert Storick »
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Offline Jim Pollock

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Re: A Conservative estimate on a new stunter
« Reply #65 on: April 18, 2009, 03:42:47 PM »
Brett,

I didn't say that Orestes did not build his Shark,  I re-examined you other post when you were talking about some of the likely winners flying a Shark.  I'm thinking there is a word left out before the word doubt, and that word is no!  Then that would make sense with what you were saying in your next post.

Not over the line

Jim Pollock   %^@

Offline Mike Foley

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Re: A Conservative estimate on a new stunter
« Reply #66 on: April 18, 2009, 05:38:01 PM »
>>Hi quality comes with a price (Buy American).<<<

Thats why I use a Fox 35 in my Oriental. If you want Amerian yu gots to be willing to pay the Bucks!

Offline Bradley Walker

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Re: A Conservative estimate on a new stunter
« Reply #67 on: April 18, 2009, 06:02:32 PM »
Thats my point. If we did away with the BOM in Stunt what would it become. Not fun. Everyone hates it?

Sarcasm once again...

My point was that Old Time is fun, and everyone loves it.  No BOM.
"The reasonable man adapts himself to his environment. The unreasonable man adapts his environment to himself, therefore all progress is made by unreasonable men."
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Online RC Storick

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Re: A Conservative estimate on a new stunter
« Reply #68 on: April 18, 2009, 06:26:29 PM »
Sarcasm once again...

My point was that Old Time is fun, and everyone loves it.  No BOM.

Well if FAI is talking BOM there must be a reason? :!
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Alan Hahn

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Re: A Conservative estimate on a new stunter
« Reply #69 on: April 20, 2009, 01:36:07 PM »
Irrespective of the BOM, is the Shark really that good of a plane? It certainly seems to be up there, and I find that to be pretty amazing just from the design standpoint.

added--clearly the hand on the handle is the biggest factor, but it sounds like the Shark wouldn't hold back that hand.
« Last Edit: April 20, 2009, 03:38:17 PM by Alan Hahn »

Offline Bradley Walker

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Re: A Conservative estimate on a new stunter
« Reply #70 on: April 20, 2009, 01:48:08 PM »
Irrespective of the BOM, is the Shark really that good of a plane? It certainly seems to be up there, and I find that to be pretty amazing just from the design standpoint.

Yes...  and yes.

It is a quantum leap forward in terms of construction.  The molded balsa construction is incredible.
"The reasonable man adapts himself to his environment. The unreasonable man adapts his environment to himself, therefore all progress is made by unreasonable men."
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Offline sleepy gomez

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Re: A Conservative estimate on a new stunter
« Reply #71 on: April 20, 2009, 03:34:52 PM »
I BUILD REALLY CHEAP PLANES out of necessity.   My Double Time biplane, 710 sq. in, foam wings covered with silkspan, fabric hinges cost about $15.00.  Wood spars and LE's in wings and tail are poplar.  Fuselage is profile cedar laminate with foam center. I build with Titebond and Elmer's and use a dab of epoxy on the maple motor mounts.  All wood is cut on my cheap table saw.  Wood comes from Home Depot as does the adhesives.  Bellcrank, and control horns are .200" birch ply from HD.  Wood wheels and control parts are bushed with aluminum pop rivets.  Wheels are made with a hole saw, stacking to get width and bushed with pop rivets.  Paint is HD acrylic for color and Minwax clear for top coat, one coat each.  I purchase lead out wire, 4-40 bolts and landing gear wire at the LHS.   Flying my own designs allows me to adapt the plane to the available materials.  Double Time weighs 46 ounces with a Thunder Tiger 36.  It flies better than I do!  SLEEPY

Offline john e. holliday

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Re: A Conservative estimate on a new stunter
« Reply #72 on: April 20, 2009, 08:12:08 PM »
As much as I hate to do this I agree with Mr. Bradley Walker. 

Old Time has no BOM rule.  How many Old Time Planes can be bought ready to fly?  Yes I have witnessed expert flyers flying someone else's Old timer.

Now if the Yatsenko Shark has such an advantage, how come the man who designed it hasn't been winning all the contests with it? 

The BOM I tought was done for now until the new proposals are brought out into the open.  What if the NATS organizers/officials decided to roll back and allow only Junior, Senior and Open competition? 

I have one of the expensive engines for stunt, but, do not fly it enough.  Model plane competition is fun for me and when I don't have fun I ask for attitude adjustments.  Right Leo and Rod?  Let's get back to having fun.  DOC Holliday
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Online Howard Rush

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Re: A Conservative estimate on a new stunter
« Reply #73 on: April 20, 2009, 08:43:31 PM »
The Yatsenkos do pretty well.  Andrii was 8th at the 2008 WC, just behind Orestes.
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Offline John Stiles

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Re: A Conservative estimate on a new stunter
« Reply #74 on: April 20, 2009, 09:54:24 PM »
Too many rules and regulations makes John a dull boy LL~
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Offline Bradley Walker

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Re: A Conservative estimate on a new stunter
« Reply #75 on: April 22, 2009, 10:05:41 AM »
"If this was a perfect world and computers judged the pattern, Joe's rig would *beat* the fancy big rigs because he can actually fly 45 degree maneuvers (something that appears to be lost in the judging world of today) with a very tight corner (what Sparky has been talking about) which garners no extra points whatsoever."

This appears to be the "My homebody (or myself) could win the Nats, but the judges are predjudiced against him/the color of his plane/his clothes."  argument. 

If you could make an automated stunt judging system, I'm sure the guys who have to recruit and train judges and print and tabulate scoresheets would gladly welcome it.  Go for it. Sparky says it's easy. 


I spent some time mulling over my answer to this question….because type of response to my comments simply makes me hopping mad.

It seems that every single time that anyone (especially me) questions the effectiveness the “system” that we use to decide stunt contests, oftentimes the immediate reaction is to jump straight toward the idea that I am somehow echoing some kind of “my homebody got screwed by biased judges conspiracy theory” (this is, of course, followed by the inevitable “whiner” comments about how I want to change the system to suit “my whiner buddies”). 

While I would be more than happy to discuss the “halo effect” or the “homeboy effect” (which is very, very real), the “halo effect” has no bearing whatsoever to my comments above.   

Indeed, my comments above reflect my view that our current system of judging does not typically reward the flyers that fly closest the *actual* shapes defined by the rulebook.  This is not a new argument, and I certainly did not invent it.  Many other very smart, capable, non tinfoil hat wearing stunt people have made the *exact* same arguments before at multiple times in the history of stunt competition (of course, many of these same flyers, were indeed labeled “whiners”, “troublemakers”, etc).

I was simply trying to make the point that I *agree* with Robert on several points if we define what we are actually talking about. 

Lighter planes with less barbell effect are more acrobatically capable (this is simple physics) and should win contests over heavier planes with heavier extremities *if* the goal at each contest was to fly closest to the *actual* shapes defined by the rulebook. 

Stunt contests, in their current form, are not about flying shapes that are closest to the *actual* rulebook.  That is just a fact proven by Bill Netzband about a million years ago.

I (as well as others) have said multiple times that bigger, heavier stunt ships win the majority of important contests.  This seems to really frustrate Robert.  I think if he understood the meaning of what I was trying to say (I cannot speak for anyone else), he might understand that I am not *arguing* against his ideas *if* we both understood the *purpose* of the stunt ship as currently defined by the event. 

The purpose of the modern stunt ship is to fly shapes defined by the rulebook *reasonably* close to the standards defined by the rulebook so as to not look ridiculously soft, with no bobbles, and perfect bottoms.  The purpose of the modern stunt ship *is in no way* designed to fly as close to the *actual* shape standards defined by the rulebook.  In short, the modern stunt ship is designed to fly the shapes and “look good” or “locked in” through the pattern.

Also, this airplane must be able to perform as described in turbulence, wind, etc and still retain its element of “smoothness” and still appear “locked in”.


The airplane design that Robert is advocating, is *not* going to be superior to the higher wing loading plane when the true goals for “contest superiority” are defined. 

That is why I say that in a perfect world of computer scoring (or even TOC style judging that separates shape judging from corner judging, bobble judging, and size judging) the smaller, lighter plane would be proven superior.  That is physically obvious and I think Netzband proved that some time ago also….

However, in a world where rocket hard corners and tight maneuvers are not rewarded any “bonus points” over smooth, large patterns, with constant bottoms it makes no sense whatsoever to build hyper light.  Planes that are too light will only detract from the flyer’s scores.  I also make the argument that there is no sense for the pilot to try to fly “harder” than the *other guy*, as the judges are simply not looking for harder corners and have no standard defined in the rulebook to reward sharp (more correct) corners. 

The judges are looking for BOBBLES and CROOKED LEGS because these are simple knock offs.  Rewarding tighter corners and smaller patterns is an after thought. 

Keep in mind hard corners and smaller patterns *cause* bobbles and crooked legs.  The “bonus points” will never outweigh the resulting “knock offs” that will inevitably occur.

Soft corners and heavy planes *mask* these things and make the true scoring goals more attainable.
« Last Edit: April 22, 2009, 11:02:14 AM by Bradley Walker »
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Offline sleepy gomez

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Re: A Conservative estimate on a new stunter
« Reply #76 on: April 22, 2009, 10:45:14 AM »
I suppose it is time for me to make some people mad.  First I speak from the outside.  I am not a competitive level pilot.  Second in several classifications I have challenged the rules and caused rules changes.  In CONTROL LINE PA the rules spell out the pattern and how it is to be flown.  Though I will never be that good, someone flying the pattern to the written rules that is beaten by others flying a big smooth/and or impressive pattern would have a LEGAL, READ LAWYER AND COURTROOM, case for suing the judges for not following the rules as written.  The solution would be to change the rules to what is presently judged before the aforementioned happens.  One possibility might be to have one flight scored against the written rules and a second scored on style and impression as done in other sports.  IT ONLY TAKES ONE PERSON WITH A FEW BUCKS OR A LAW DEGREE TO MAKE A LOT OF CHANGES.

Offline Bradley Walker

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Re: A Conservative estimate on a new stunter
« Reply #77 on: April 22, 2009, 10:59:43 AM »
Now if the Yatsenko Shark has such an advantage, how come the man who designed it hasn't been winning all the contests with it? 

As much as I hate to do this, I must disagree with Doc here.

I am not sure anyone said that the Shark is a dominant design.  It is an awesome design, but I am not sure it would have an "advantage" or "dominate" other designs at all.  Most people just bitch because you can buy one RTF...

...and to make the argument that designing a superior plane has anything to do with flying ability (or vice versa) is just...  well...  I will leave it to the rest of you to fill in the rest.
"The reasonable man adapts himself to his environment. The unreasonable man adapts his environment to himself, therefore all progress is made by unreasonable men."
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Offline Randy Powell

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Re: A Conservative estimate on a new stunter
« Reply #78 on: April 22, 2009, 11:09:31 AM »
The FAI committee considered a trial period to try out BOM and elimination of K factor. It looks like the FAI guys are just about as intransigent as the AMA guys. They don't want to "ruin" their event. As far as I know, the trial period was not approved.

I pretty tired of arguing. Brad is younger than me and has more energy. I just want to build planes and go out an fly. This reminds me of the stuff I hear all the time from Dressage judges and competitors. There is an ongoing, long standing argument over rules and "presentation" points. Halo effect, name effect, trainer effect, yada, yada, yada. Try to change a rule, even a minor one there and you can be sure there will be screaming. Even if it's a safety rule. We are a pretty agreeable group compared to those folks.
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Online Howard Rush

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Re: A Conservative estimate on a new stunter
« Reply #79 on: April 22, 2009, 01:51:53 PM »
Bradley, I think I agree with most of what you said above.  I don't agree with two of your premises, though. 

"Lighter planes with less barbell effect are more acrobatically capable (this is simple physics) and should win contests over heavier planes with heavier extremities *if* the goal at each contest was to fly closest to the *actual* shapes defined by the rulebook."  Obvious to you, maybe, but I don't think it's true when you include the pilot capability required to steer the thing to the perfect path in the presence of wind and gravity.  It could be that the judges are following fashion, rather than going by the book, or it could be that the top flyers know something you don't.  You have chosen to believe the former.   

The bigger-than-45-degrees problem which you and Mr. Gomez mention was indeed a problem in Europe 20 years ago.  It's not now, nor is it here, as you could see if you stood sideways to patterns at a contest.  When my tricks get too big or too small, I hear about it from my coach. 

I sent you the Nats program, including the finals-judge selection method for your review.  I haven't heard from you.  Mr. Gomez, I would be happy to send you a copy, too. 

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Offline Bradley Walker

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Re: A Conservative estimate on a new stunter
« Reply #80 on: April 22, 2009, 03:16:44 PM »
The bigger-than-45-degrees problem which you and Mr. Gomez mention was indeed a problem in Europe 20 years ago.  It's not now, nor is it here, as you could see if you stood sideways to patterns at a contest. 

I do all the time.  I flatly disagree with this... 

...and yes, a side judge would solve the problem.  So add one.  No computer needed.
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Re: A Conservative estimate on a new stunter
« Reply #81 on: April 22, 2009, 03:22:17 PM »
I do all the time.  I flatly disagree with this... 

...and yes, a side judge would solve the problem.  So add one.  No computer needed.


This has been done at several contest, with good results, caution, you will need to give that judge a 45 degree sighting device and teach them how to use it, without that you have the same old problem of the "floating"45

Randy

Offline Bradley Walker

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Re: A Conservative estimate on a new stunter
« Reply #82 on: April 22, 2009, 03:27:23 PM »
Obvious to you, maybe, but I don't think it's true when you include the pilot capability required to steer the thing to the perfect path in the presence of wind and gravity.  It could be that the judges are following fashion, rather than going by the book, or it could be that the top flyers know something you don't.  You have chosen to believe the former.   

You completely miss my point that there is no *need* to corner any harder than the "top flyers".  It will not garner you one single extra point, so why bother?  It will only cost you points... because harder corners cause errors (as you pointed out).  I am not arguing in any way the right or wrong of it, and it is obvious that the "top flyers" have *enough* corner, coupled with all of the other aspects that make for high scores including penetration in the wind and turbulence, shapes, intersections, smoothness, bottoms, etc.  Nearly all of the *other* aspects of stunt flying besides smaller sized maneuvers and very tight corners can be often times done with heavier planes.  This is the point that I think Robert might be missing, and the "top flyers" are not missing.  Flying rocket hard corners at a level greater than the "status quo" defined by the "top flyers" will not gain anything.  It appeared, by his comments, that Robert felt it would.

A lightweight Nobler can fly a corner closer to the rulebook radius than most of the 13 oz big planes... that is just a simple fact.  A 1/2A is even closer.

All that being said, I would say the top flyers are good flyers...  I think if you gave Tiger Woods a set of Walmart clubs he could still dominate when he is playing well.... same can be said for flyers. 

Doug Moon dominated around here when he was flying a lot...  it didn't matter what he flew.  He won contests at expert level flying everything from his wiz bang pipe ship all the way down to his POS bubble film covered profile with a LA 40.  He can just see it....  I also keep hearing about these 560 point Ringmaster patterns out your way by the "top flyers"...
« Last Edit: April 22, 2009, 04:04:36 PM by Bradley Walker »
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Re: A Conservative estimate on a new stunter
« Reply #83 on: April 22, 2009, 05:50:18 PM »
I think that, all else being equal, the sharper the corner, the better the score.  Nats judges have testified as much on these fora.  Everything else isn't equal, though.  I have flown a heap of airplanes that turn tighter than my Impact-- I flew some in a contest last weekend-- but they wouldn't score well in stunt because the rest of the maneuver would suck.  I have been advised at times to soften my corners.  It wasn't because the corners didn't count; it was because it was beyond my capability to hit corners that tight without messing up the rest of the maneuver.  I reckon you could have judges (human or automated) weigh corner radius more than they do, but I don't think it would cause me to reduce the pitch moment of inertia of my airplane.  If you do think judges chronically neglect corners or some other aspect of the pattern, please review the program I sent you and show PW how to fix his judge ranking method. 
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Offline Doug Moon

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Re: A Conservative estimate on a new stunter
« Reply #84 on: April 22, 2009, 10:01:22 PM »
Hello Howrad,

I think you might be missing Brad's point.  Let me give it a go. 

When it comes to corner I am quite sure all the judges out there are watching for good solid "quick" looking corners.  There is no doubt this is happening.  This we can all agree on.

What I see happening is when a top level pilot is putting in a pattern with a normal tight corner and all the corners appear to be the same radius throughout the pattern they score very well.  There is no way on earth they are anywhere near what the rules call for.  But the fact that they all appear equal and quick or tight they simply dont jump out as errors.  They help score as well.  But they dont really stand out unless you watch only the corners. With these non rulebook corners all having similar tight appearing radii the pilot also has straight legs in there and it appears smooth and in control throughout.

Someone else comes along with blinding corners.  I mean blisters.  Quick as a cat.  Much more so than the pilot above.  People take real notice when this plane is in the air.  Yet he gets a crooked leg here and there, not often but it is there sometimes.  His scores will be lower.  It just always works that way.  The pattern with the tighter corners is closer to the RB because the corners themselves, and there are many all throughout the pattern, are closer to the RB's request.  The crooked leg sticks out more and hurts the pilots chances of scoring well.  Even though this pilot is way closer to RB requirements due to the fact that the pilot above is further away from the RB on every single corner he flys. 

Also with all things equal the plane flying softer but still tight corners is going to be flying larger over all maneuver sizes.  Still getting further away from the RB. 

That is exactly why you are told to fly softer corners.  They are telling you to fly further away from RB corners yet you will be scoring better. Being in control and flying even tight corners all across the board, even though they are much softer than you can fly, and you will score better.  That is how I practice as well.  It works.

No the judges are not and never are discounting corner, ever.  But working one's tail off to fly harder corners than the next guy can really work against you.  What you will gain from the judges human eye will not be as much as that occasional error will cost you.  Otherwise your coach would have told you to stay after those blistering corners and deal with the other stuff.

Having the ability to build hyper light planes, and having done so several times, they do give me a better chance to fly tight small patterns closer to the RB requirements.  The lighter plane will give you a larger window of trim to work within.  As the planes get heavier that window gets smaller.  The heavier the plane the more confined you are in its ability to perform.  That is what I have learned over the years HERE in TX where the air density in the summer is just nil.  Maybe in other areas of the country that is not the case.  BUT around here is certainly is.

BUT.............................................................................

As Brad said hyper light is not required because RB patterns are not required to win.  Whoever "appears" to be closest to it wins.  The word appears is key to that statement.  Because stunt is a judged by the human eye, and I think it should stay that way, event.  The human eye is not going to be measuring radii and placement in the hemisphere concerned with 45 degrees like the GPS stuff will that people want to talk about getting to work in stunt.

If and when GPS is used to score stunt the smooth flowing and in control pattern with tight in control corners that so many talk about will be gone and in are the days of jerk stunt flown and won by combat type planes with a bit more stability.  You think eliminating BOM will ruin the event.  That will ruin it once and for all.  No more buffed out planes because they wont even be anywhere near what it takes to get that pattern close to RB requirements.

That is all have for now,,,I have to go add 2 oz of nose weight to my plane....OUCH!!!!!!!!  Now it pushes 70 oz.!!!  YIKES!!!






« Last Edit: April 22, 2009, 10:22:08 PM by Doug Moon »
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Re: A Conservative estimate on a new stunter
« Reply #85 on: April 22, 2009, 11:06:38 PM »
Can you imagine the arguments we'd have about how to weight various pattern errors with automatic scoring?  Poor Keith.

I just made a carbon tank to move my CG back. 
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Re: A Conservative estimate on a new stunter
« Reply #86 on: April 23, 2009, 07:18:10 AM »
I think some are missing my point. The trick is to have a plane that is capable of a super sharp corner and still controllable in the rest of the maneuver. You can achieve this by foreword CG and light weights. Hope I can get some practice soon! Damn weather.

You will just have to see it with your own eyes or fly it to tell me if I am right.
« Last Edit: April 23, 2009, 07:41:11 AM by Robert Storick »
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Re: A Conservative estimate on a new stunter
« Reply #87 on: April 23, 2009, 07:38:10 AM »
Doug gets it. :o
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Offline Bradley Walker

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Re: A Conservative estimate on a new stunter
« Reply #88 on: April 23, 2009, 07:39:56 AM »
Can you imagine the arguments we'd have about how to weight various pattern errors with automatic scoring?  Poor Keith.

Better than "whatever you think. just do it however you want". 

Like painting the Mona Lisa with a roller.
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Offline Steve Fitton

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Re: A Conservative estimate on a new stunter
« Reply #89 on: April 23, 2009, 07:51:39 AM »
I think some are missing my point. The trick is to have a plane that is capable of a super sharp corner and still controllable in the rest of the maneuver. You can achieve this by foreword CG and light weights. Hope I can get some practice soon! Damn weather.

You will just have to see it with your own eyes or fly it to tell me if I am right.

  I would argue that this has already been achieved, or, achieved at least as far as technology and human beings can do in stunt.  Whether its a Nobler in the 1950s, an Impact in the '90s, or a .75 powered small Star Gazer today, I think the balance between corner and control has been maximized all along.  I think quantifiable improvement would require some sort of computerised assistance, like a minature stability augmentation system.
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Offline Bradley Walker

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Re: A Conservative estimate on a new stunter
« Reply #90 on: April 23, 2009, 08:11:41 AM »
I think some are missing my point. The trick is to have a plane that is capable of a super sharp corner and still controllable in the rest of the maneuver. You can achieve this by foreword CG and light weights. Hope I can get some practice soon! Damn weather.

You will just have to see it with your own eyes or fly it to tell me if I am right.

If it makes you feel any better Robert, this is EXACTLY how the Shark is designed, not to mention the Berringer models.
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Re: A Conservative estimate on a new stunter
« Reply #91 on: April 23, 2009, 08:26:29 AM »
If it makes you feel any better Robert, this is EXACTLY how the Shark is designed, not to mention the Berringer models.

Except the ones I have seen are too heavy.
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Re: A Conservative estimate on a new stunter
« Reply #92 on: April 23, 2009, 08:51:53 AM »
Except the ones I have seen are too heavy.

The Berringer Sportster is heavy?  I think Remis at the Muncie WC's was 52 oz (weighed) with a 4 cycle engine.  That is not heavy. 

The Shark is in the high 50's...  it is over 650 square inches.  That is 10 oz lighter than most of the planes that you will see in that class...
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Re: A Conservative estimate on a new stunter
« Reply #93 on: April 23, 2009, 09:53:19 AM »
The Berringer Sportster is heavy?  I think Remis at the Muncie WC's was 52 oz (weighed) with a 4 cycle engine.  That is not heavy. 

The Shark is in the high 50's...  it is over 650 square inches.  That is 10 oz lighter than most of the planes that you will see in that class...


Humm 4 cycle in the nose , How much does that weigh? 50 oz is still more than 40. Weigh tis still weight no matter how much it is , More is not better. Less weight = more usable horse power.
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Offline Bradley Walker

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Re: A Conservative estimate on a new stunter
« Reply #94 on: April 23, 2009, 10:08:11 AM »
You should ask Randy about a guy named Scott Bair.
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Offline Randy Powell

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Re: A Conservative estimate on a new stunter
« Reply #95 on: April 23, 2009, 10:46:07 AM »
Ultimate weight aside, obviously, if you can fly blinding corners, perfectly straight side, correct sizes, good intersections, perfectly tracked rounds and great transitions, and perfectly consistent bottoms you are going to win a lot of contests. As a judge, it's true, I look for errors. It's pretty easy when someone is flying really big or has poor tracks or the sides of squares are all over the place. It get harder when all that looks really good. You start looking for minor mistakes. Soft corners or very slight track issues or whatever. But trust me, blinding corners get a good score if the rest of the maneuver looks good. Problem comes when you have blinding corners but can't keep the plane on track.
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Offline Bradley Walker

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Re: A Conservative estimate on a new stunter
« Reply #96 on: April 23, 2009, 11:04:10 AM »
But trust me, blinding corners get a good score if the rest of the maneuver looks good.

It is all a matter of gives and takes. 

If you fly with "blinding corners" and tight 45 degree maneuvers you will make more mistakes.  Most likely you will be dinged more than you will be rewarded.

I do not believe that *all* of the "top flyers" are flying 45 degree maneuvers.  Not at all. In fact, guys flying short lines so their maneuvers *look* smaller is pretty common. 

I admit I have not been to major contest since the Muncie WC's.  I attended the two previous Nats (2002/2003). From those three contests I saw a *lot* of oversized patterns from many of the "top flyers".  HUGE patterns.  Some pretty soft corners too...
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Re: A Conservative estimate on a new stunter
« Reply #97 on: April 23, 2009, 11:09:44 AM »
>>If you fly with "blinding corners" and tight 45 degree maneuvers you will make more mistakes.  Most likely you will be dinged more than you will be rewarded.<<

True if I were flying the pattern. But not true for top pilots. It really comes down to a well trimmed plane and skill level. I have seldom (very seldom) seen a 40 point maneuver. But in all cases it was from a "top pilot".
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Offline Lauri Malila

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Re: A Conservative estimate on a new stunter
« Reply #98 on: April 23, 2009, 11:54:59 AM »



 Hi.

 About the Yatsenko planes.. I don't think that them being pre-built is the point. Anyone can build a good model and there is lots of good designs capable of winning contests. I feel that more important thing is that they are extremely well trimmed, in terms of quality of turn and inherent stability. Part of this comes from their construction technology, it takes more skill and care to build straight and light planes with classical construction methods. Of course there is some minor work to be done because differend pilots have differend requirements and style.
 Maybe 90% of the planes that I see in contests are just badly trimmed. Big time. L

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Re: A Conservative estimate on a new stunter
« Reply #99 on: April 23, 2009, 12:01:54 PM »
I have seldom (very seldom) seen a 40 point maneuver.

Was it a square or round?  If it were square, it would have to have a 5 foot radius...  which no one has.  Of course, they may have taken the 5 foot radius out of the rulebook.  I have not checked lately.
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