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Author Topic: Yatsenko Shark.  (Read 13684 times)

Offline Perry Rose

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Yatsenko Shark.
« on: July 23, 2018, 01:14:57 PM »
Does anyone have plans or reverse engineered the plane enough to reproduce the Shark?
I may be wrong but I doubt it.
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Offline frank williams

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Re: Yatsenko Shark.
« Reply #1 on: July 23, 2018, 02:27:28 PM »
Perry
You can buy a set of molds if you like$.
Frank

Offline RC Storick

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Re: Yatsenko Shark.
« Reply #2 on: July 23, 2018, 02:53:09 PM »
Perry
You can buy a set of molds if you like$.
Frank
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Offline M Spencer

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Re: Yatsenko Shark.
« Reply #3 on: July 23, 2018, 09:37:20 PM »
Dunno how related this is, other than visually . aybe someone who knows will chime in .Its listed there as ' SHARK ' .


Offline M Spencer

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Re: Yatsenko Shark.
« Reply #4 on: July 23, 2018, 09:48:25 PM »


abducted from ' the best stunt airfoil ' here .https://stunthanger.com/smf/stunt-design/the-best-stunt-airfoil/50/





appears this one might be accurate. Curtousey G Van T .



R&D Dept .  S?P H^^

actually , searching Jose Modestos posts I think gets pictures of a bare wood , supplied ' SHARK ' build ,
so may have usefull details . Might be the easiest way to go : ditto . ( Bare Wood From manufactuer ) .


Offline Vincent Judd

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Re: Yatsenko Shark.
« Reply #5 on: July 25, 2018, 10:23:42 AM »
I know I can't afford it, but if I could, what is the current price for a Yatsenko Shark these days?  Just curious, who knows, maybe I'll hit the lottery some day.

Hypothetically speaking of course.

Online Mike Griffin

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Re: Yatsenko Shark.
« Reply #6 on: July 25, 2018, 11:54:22 AM »
Vince I do not know if this is still current but the last price I heard was around $3500.00.

Mike

Offline Vincent Judd

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Re: Yatsenko Shark.
« Reply #7 on: July 25, 2018, 02:31:45 PM »
Thanks Mike.

If I ever hit the big lottery, I'll give you a call, you can let me know what color you'd like.   LL~

Vince

Offline Steve Fitton

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Re: Yatsenko Shark.
« Reply #8 on: July 26, 2018, 05:24:50 AM »
I think Kent Tysor still has a Shark and might be willing to sell it.
Steve

Offline Avaiojet

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Re: Yatsenko Shark.
« Reply #9 on: July 26, 2018, 06:40:16 AM »
I've seen the Shark fly and actually touched it.

Tremendously well made.

It's the bee's knee if you do competition.

Charles
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Offline Lauri Malila

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Re: Yatsenko Shark.
« Reply #10 on: July 26, 2018, 09:13:30 AM »
.
« Last Edit: September 07, 2024, 02:15:44 PM by Lauri Malila »

Offline Gordon Van Tighem

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Re: Yatsenko Shark.
« Reply #11 on: July 27, 2018, 02:06:26 PM »
Here is my Tiburon. RSM can supply ribs and spars and the pdf plans are in the Elliptical post in the CAD section of this site. It flies well and doesn’t break the Bank!
G
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Offline Brent Williams

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Re: Yatsenko Shark.
« Reply #12 on: July 27, 2018, 02:45:03 PM »
Here is my Tiburon. RSM can supply ribs and spars and the pdf plans are in the Elliptical post in the CAD section of this site. It flies well and doesn’t break the Bank!
G

That turned out great Gordon.  I rotated those pictures for you. 
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Offline Gordon Van Tighem

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Re: Yatsenko Shark.
« Reply #13 on: July 27, 2018, 05:01:41 PM »
Hi Brent,
Did the video work?
G
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Online Dan McEntee

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Re: Yatsenko Shark.
« Reply #14 on: July 27, 2018, 05:48:40 PM »
   An airplane like the Yatsenko Shark would lie in the realm of a professional piece of equipment. If there were some sort of league where stunt was flown on a large scale for serious money to the winner, that is what you would have to have to be competitive.  The same thing happened at Indianapolis as time and technology progressed. You used to be able to build a car in your garage and go enter the big Memorial Day race. But as speeds got faster, precision in the equipment became critical so no more shade tree mechanics building Indy cars. Some did a very credible job until it just wasn't possible to make something by hand the equaled built expensive machines. Now you only have a choice of a couple of chassis and engines. The same thing has evolved in stunt and I guess it was inevitable. One thing is not the same and that is the over all amount for money involved in each!
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Offline Tom Luciano

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Re: Yatsenko Shark.
« Reply #15 on: July 27, 2018, 06:13:21 PM »
I'm fairly new to stunt so I'm not looking to step on anyone's toes. Prior to Orestes winning the worlds
 How many Sharks have won? Seems 4 years ago Igor's max bee was the rage. I'm sure the Shark is much more consistent from plane to plane. I believe we have some very prolific builders and designers that can turn out just as good as a product. I'm not going to start naming people but we know who they are.
The guys that did so well just flew great! If I flew a Shark it wouldn't help me one bit!

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Online Howard Rush

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Re: Yatsenko Shark.
« Reply #16 on: July 27, 2018, 06:17:06 PM »
   An airplane like the Yatsenko Shark would lie in the realm of a professional piece of equipment. If there were some sort of league where stunt was flown on a large scale for serious money to the winner, that is what you would have to have to be competitive.  The same thing happened at Indianapolis as time and technology progressed. You used to be able to build a car in your garage and go enter the big Memorial Day race. But as speeds got faster, precision in the equipment became critical so no more shade tree mechanics building Indy cars. Some did a very credible job until it just wasn't possible to make something by hand the equaled built expensive machines. Now you only have a choice of a couple of chassis and engines. The same thing has evolved in stunt and I guess it was inevitable. One thing is not the same and that is the over all amount for money involved in each!
  Type at you later,
  Dan McEntee

In stunt, despite the big prize money involved, you can still make a competitive airplane by hand.   I've flown a Shark, and I prefer my homemade dog.
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Online Brett Buck

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Re: Yatsenko Shark.
« Reply #17 on: July 27, 2018, 06:47:57 PM »
Now for the real medicine: The reason that CL Stunt (and CL in general) is not taken seriously by our hobby industry is the fact that CL fliers don't spend much money. Sorry to put it so bluntly, but this is a major contributing factor. Our sport is about the least expensive motor sport on the planet, and we still complain about the cost of stuff.

    That's not blunt, it's not at all shocking, and perfectly justified. In fact, I think that is a wonderful situation in many ways. Look at what has happened to RC, for the most part, it's an adult toy industry, and the hobby and competition aspect of it is long gone. Too much attention from manufacturers seems to be the death knell, they move in, dominate the system, and effectively control it.

   We have solved the problem a different way - cottage industry suppliers, where you can get essentially custom parts, from fellow modelers for the most part, and without the external pressure of large manufacturers. Look at what we have now, compared to, say, 1970 when CL had a significant commercial presence. The best parts we have ever had in the history of the event are available now, and it's still relatively easy to find - just not at the now-mythical "local hobby shop". Note that the "local hobby shop" was crushed out of existence by the hobby industry, taken to it's logical end by Tower/Great Planes, where the distributors took it over and control it.

Quote
Taking this to an industry outside our hobby/sport I can tell you that a really good quality acoustic guitar costs anywhere from $2,000 to $10,000 dollars (and sometimes even much more...). I play Taylor guitars, and the two that I own are each in the $4,000 price range. In looking at them I can tell you for certain that there is about the same amount of work in them as there is in one of the Yatsenko's models. So why do many think that their models are overpriced? Why do they even think they are "expensive?" They are reasonably priced for the work that is involved.

The Yatsenkos have decided to ask a real-world price for their work, and I applaud them. If you don't want to spend that kind of money, fine; but don't think that they are charging too much; they are charging for their products as if they were in the real world of commerce. From what I can tell, there are many who understand that such models cost a significant amount and are willing to pay the cost to get them.

     Certainly true, I sure am not going to build models of that quality and sell them for $3000 or even $6000, even if I was so inclined (which I am certainly not). I have had the opportunity to examine a few of them up close, and they are very high quality for semi-production items, the fit and finish is very good, and better than almost everyone's individually-built models. There were a few things that appeared to be a bit "off" in terms of production and alignment on each model, so the really good fit-and-finish is very slightly misleading. I was less impressed with the mechanical and structural design, and (as several people have found the hard way) there are places where it seems kind of fragile, particularly the leadout connections. Still, it seems to hold together long enough, Orestes has flown his a million times.

    I am less impressed with the way it flies, it is certainly not going to fly the way a lot of us might want it to, although that is partly a matter of preference. In particular, you have to fly it, actively, every second of the time, it has absolutely no tendency to self-correct or fly in straight lines over curved paths, and has none of the semi-automatic corner exits most of our airplanes have in varying degrees. You can't "feel" neutral, and there is little feel at any point. This surprised me and also impressed me about Orestes's piloting skills, because the kind of attention it takes to get it to come out at 5 feet like rolling across a tabletop (which he does all the time) is astonishing. I can also see why he (and others) fly all the flights they can, you have to. It always does the same thing, so it's just matter of learning how to take best advantage, but it is completely different from what we have been trying to achieve for decades.

   People worried about the cost are probably wrong, you couldn't get anyone to make it for you for less. But you can probably build a better airplane yourself, for far less - if you are willing to learn how and spend the time doing it*. Which is largely the point...

Quote
Until we accept that quality products are worth a quality price and start supporting the hobby industry to a greater degree, we will not be taken seriously by it. But, I don't think that's going to happen...

   I know what you are getting at - CL fliers are cheap. In a sense, you are right, because for something the quality of a Yatsenko airplane, ready to fly in its travel container, is a remarkable bargain for what you get. Similarly, if you want to fly Team Race, the way the Europeans go about it is to go to the Russians or Ukrainians, they ask "how fast do you want to go?" and then you write check to suit your competitive needs. Of course they will keep the best stuff for themselves. That sort of thing is exactly what I would want to *avoid*, it's anathema to me and many others in stunt.

 But I think there are a lot of other reasons that the "Hobby" industry is going to ignore it, not the least of which is the 400,000 RC sport fliers (compared to the 2-3000 CL fliers, most of whom are specialist competitors).  CL *at best*, was supplied by the industry only when it was the only game in town. As soon as RC became practical, and CL was relegated to a specialist activity, there was no way they could even figure out what to do, even had they wanted to.

    Even if a major manufacturer wanted to build a competition CL stunt engine, for example, how would you go about it? Develop it over the course of several seasons with competent competitive modelers, make a run of 50, then have people argue about whether it is any good or how they would have done it differently for the next 10 years. At some point, someone will find something different that works slightly better and the market goes "poof" overnight. Hobby shops had a similar problem, at one point, you would build up your stock of ST60s and spare parts because that's what everyone asked for, then, bam, someone discovers the 40VF, and now that stuff is rusting on the shelf forever. I think we both know how that worked out, far better than we ever wanted to...

     When the best stunt engine I have ever run was apparently made that way when Dub Jett accidentally turned a handle clockwise instead of counterclockwise, I don't think there is a lot of chance that this will ever be a viable big industry target.

     Brett

p.s. there is another aspect to this. While I think you can build any number of other designs that I think can be made to fly better (Impact, Imitation, Trivial Pursuit, Thundergazer, Infinity, Saturn, Geo XL, SV-11 and its kin, and whatever airplane I forgot for which I will be ripped for in a second...), the fact is that the RTF Yatsenko plane will certainly fly FAR, FAR better than almost any airplane people are liable to get, simply because it is in close to ideal trim even as it comes out of the container, and also *because there aren't any adjustments with which to screw it up*. This same feature also makes it very difficult to optimize or to remove the last few little quirks, but it's far, far better than most airplanes I fly (and I fly A LOT of other people's airplanes).

Offline RandySmith

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Re: Yatsenko Shark.
« Reply #18 on: July 27, 2018, 07:15:04 PM »
   An airplane like the Yatsenko Shark would lie in the realm of a professional piece of equipment. If there were some sort of league where stunt was flown on a large scale for serious money to the winner, that is what you would have to have to be competitive.  The same thing happened at Indianapolis as time and technology progressed. You used to be able to build a car in your garage and go enter the big Memorial Day race. But as speeds got faster, precision in the equipment became critical so no more shade tree mechanics building Indy cars. Some did a very credible job until it just wasn't possible to make something by hand the equaled built expensive machines. Now you only have a choice of a couple of chassis and engines. The same thing has evolved in stunt and I guess it was inevitable. One thing is not the same and that is the over all amount for money involved in each!
  Type at you later,
  Dan McEntee

The notion that the  Shark is the best airplane out there, and you cannot build a plane as good  or  better, is  NOT  true, I have personally flown several of them, and I can tell you for a fact there are many better planes that are  home made in garages , and basements  at home.

Randy

Offline Doug Moon

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Re: Yatsenko Shark.
« Reply #19 on: July 28, 2018, 09:30:15 AM »
        I am less impressed with the way it flies, it is certainly not going to fly the way a lot of us might want it to, although that is partly a matter of preference. In particular, you have to fly it, actively, every second of the time, it has absolutely no tendency to self-correct or fly in straight lines over curved paths, and has none of the semi-automatic corner exits most of our airplanes have in varying degrees. You can't "feel" neutral, and there is little feel at any point. This surprised me and also impressed me about Orestes's piloting skills, because the kind of attention it takes to get it to come out at 5 feet like rolling across a tabletop (which he does all the time) is astonishing. I can also see why he (and others) fly all the flights they can, you have to. It always does the same thing, so it's just matter of learning how to take best advantage, but it is completely different from what we have been trying to achieve for decades.

 
     Brett


WOW!!!! I flew Orestes plane and had this EXACT same feeling.  The whole time you have to be right on top of it or it will go off and do whatever it wants and that is not because it was out of trim it's just that way. I was impressed with how easily it would turn a corner.  I felt like I could fly it on my wrist the whole time as opposed to on my arm like I do with my planes.  And it wasn't a tail heavy corner either, just a quick snap. It was extremely nimble but very quirky in how it performed. I could see how awesome it would be after about 500 flights over a very short amount of time.
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Online Brett Buck

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Re: Yatsenko Shark.
« Reply #20 on: July 28, 2018, 01:14:12 PM »
WOW!!!! I flew Orestes plane and had this EXACT same feeling.  The whole time you have to be right on top of it or it will go off and do whatever it wants and that is not because it was out of trim it's just that way. I was impressed with how easily it would turn a corner.  I felt like I could fly it on my wrist the whole time as opposed to on my arm like I do with my planes.  And it wasn't a tail heavy corner either, just a quick snap. It was extremely nimble but very quirky in how it performed. I could see how awesome it would be after about 500 flights over a very short amount of time.

     All you need is the time to fly 500 flights right up to and during the NATs...

     Apparently I don't mind getting people mad at me, in my diminished state, but in terms of flying, in many ways and the way you have to fly it is a lot like the SIG Skyray 35. Most of the same strengths and weaknesses:

     No feel - you have to fly the Skyray *every second*, you can't look away or count on your muscle memory and feel to keep it flying level or in straight lines
     Instant corners - Wild Bill used to complain, legitimately, about flapped airplanes from the Nobler era not turning "when" he wanted, and elevator-only airplanes went immediately, I agree with him (although a lot of that has been corrected in more modern designs).
     The lack of load and instant corners makes the Skyray do outstanding and very easy triangles and square 8s, you can wait much longer to start the corner, providing better definition of the maneuvers even though the corners themselves are nothing to write home about.  If you are going to fly with high K factors on the three maneuvers that matter, it's much to your advantage for your airplane to make them easy. Unfortunately, my Skyray does good hourglass maneuvers only in good conditions, but that's at least partly because I don't try to adjust the shape (wider) to accommodate the airplane, since I am always flying regular stunt, too, the same weekend. The lack of tight cornering is harder to overcome in the hourglass, since it's so much narrower than  triangle.

      I even know why it might be that way, even though the Shark is of pretty conventional areas/dimensions otherwise - it's the 2:1 elevator:flap ratio. In rounds and level flight, the flaps don't do much (and NOTHING on the Skyray, since they don't exist). It's the inverse of the Igor logarithmic flap gadget. That suggest how you might "fix" it, but it would be a real difficult thing to start cutting into what is otherwise a beautiful bit of workmanship.

    So, if someone wants to see what a Shark would fly like, and don't want to spend $4000 or whatever for the privilege, build yourself a "cloned" SIG Skyray with all-balsa parts and a 20FP, set it up per this SSW post:

   http://www.clstunt.com/htdocs/dc/dcboard.php?az=show_topic&forum=103&topic_id=198043&mesg_id=198043


   and you will get the general idea. That's not to say you are going to be beating Orestes in a few months, and the Shark is clearly a much better airplane overall,  but the general feel of the airplane is much different from a lot of the more common designs, and it's only going to cost you about $100 to find out.

     Brett

     

Offline Randy Cuberly

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Re: Yatsenko Shark.
« Reply #21 on: July 28, 2018, 02:04:09 PM »
Over the years I've seen a number of fabulous looking Yatsenko airplanes.  The YAK being one of the most interesting.  Is the Shark for some reason the only one deemed to be competitive?

Randy Cuberly
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Online Brett Buck

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Re: Yatsenko Shark.
« Reply #22 on: July 28, 2018, 02:30:08 PM »
Over the years I've seen a number of fabulous looking Yatsenko airplanes.  The YAK being one of the most interesting.  Is the Shark for some reason the only one deemed to be competitive?

     Probably because that's what Orestes has, and he is the most successful of any of the people flying Yatsenko airplanes. Everybody else got them because that's what he had. Uncle Jimby bought the  Chumleymobile directly from Orestes. 

    Brett

Offline Ted Fancher

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Re: Yatsenko Shark.
« Reply #23 on: July 28, 2018, 02:41:34 PM »
Although I've never flown one, Brett and Doug's comments about the handling of the Shark don't surprise me a great deal.  After reviewing some of the info in this thread and referring back to my remarks (in another thread) about adverse pitching moment from flap deflection I can see where, if the CG is very far aft...say 20% MAC or more, the airplane would be "very" responsive but would not provide a lot of feedback to the pilot. 

Short, two thirds span flaps of modest chord, moving substantially less than one to one with the elevators (per someone's earlier comment) would produce rapid pitch changes but, given the size and modest deflection of the flaps, very little feedback to pilot inputs.  Thus, constant attention would be a must to maintain tracks as the feedback from inputs would provide very little tactile sensation to the pilot as to where the control are during the performance of a corner other than watching the airplane itself and, more or less, adjusting after the fact.

that's pretty much a recipe for the handling you've both described.

It might be of interest (if it's possible without breaking things) To reset the flap elevator ratio to one to one to attempt to regain a bit more feedback from the increased negative pitching moment which would result.  Moving the CG forward and opening handle line spacing to regain lost cornering which results would also increase feedback to the pilot and would be of interest in the same vein without having to whittle on the control mechanism.


Ted

Online Brett Buck

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Re: Yatsenko Shark.
« Reply #24 on: July 28, 2018, 03:28:31 PM »

that's pretty much a recipe for the handling you've both described.

It might be of interest (if it's possible without breaking things) To reset the flap elevator ratio to one to one to attempt to regain a bit more feedback from the increased negative pitching moment which would result.  Moving the CG forward and opening handle line spacing to regain lost cornering which results would also increase feedback to the pilot and would be of interest in the same vein without having to whittle on the control mechanism.

   We were looking at doing these sorts of things to the Chumleymobile the other day, partly to correct the tendency to turn much tighter one way than the other,  and partly to gain a bit of feel as an experiment (much like the Special Edition, which unfortunately it didn't dawn on me to try until it was too late). You can get to the flap horn, sort of (because you have to be able to take the aft fuselage off)  but there are no adjustment holes.

     But it's easier said than done -  there is no access at all to the elevator horn without major surgery, the only way you can even see what is back there is to look through from the front where it separates from the forward fuselage.  It was not designed to be adjusted, which I suspect is probably great step forward for most people. But makes it really difficult to get the last little bit of tweak out of it.

    The airplane flies pretty well as it is, but you have to be prepared for it to be much different from what we have come to expect and designed to achieve for a long time. I have flown a bunch of Impact/40VFs and the control loads are just as light, but (when trimmed properly) it tracks like a laser beam to the point you can almost fall asleep in level flight, and just assume it's going to keep going straight, and it pops in and out of corners so distinctly it more-or-less reset the bar on what the pattern is supposed to look like. The Shark sure doesn't do either of these.

    I would emphasize, however, that the Shark doesn't appear to be "unstable", in that it doesn't seem to get easily knocked off course by turbulence. It just doesn't have a lot of feedback

       Brett

Offline Lauri Malila

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Re: Yatsenko Shark.
« Reply #25 on: July 28, 2018, 04:17:26 PM »
.
« Last Edit: September 07, 2024, 02:18:19 PM by Lauri Malila »

Offline RandySmith

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Re: Yatsenko Shark.
« Reply #26 on: July 28, 2018, 04:21:50 PM »
Over the years I've seen a number of fabulous looking Yatsenko airplanes.  The YAK being one of the most interesting.  Is the Shark for some reason the only one deemed to be competitive?

Randy Cuberly

Randy   I have flown 7 of them, The  Classic  is a better flying airplane, and it does not have the different inside  vs  outside turn rate, I can get used to that on the Shark, but problem is when the wind starts to blow, the  rates  change, this results in an overturn  S  on the squares , ( Bill called the  hippy hops).  The  Classic  has none of that, at least in the 2  I flew. The  Shark is a better looking  plane , but I would choose  the  Classic,  or  I love  the look of the  Extra type  airplanes being built in Europe, the  YAK  I would love to fly, but  not keen on the look

Randy

Online Brett Buck

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Re: Yatsenko Shark.
« Reply #27 on: July 28, 2018, 05:34:35 PM »
I don't know what version you are talking about, but I have at least 3 differend versions of Shark evolution and they all have several holes in flap horns for changing flap:elevator ratio.

Regarding the asymmetric turning, I recommend the following (providing the model is well built, meaning straight):
 -Get used to the original handle, adjusted so that handle is vertical (no bias) when controls are centered.
 -If still not good, next step is to play with flap/elevator throw symmetry. Let's say that inside turn is slower, in that case you'll need less flap "down" with "up" elevator. You will acchieve that by bending the flap horn forward and then re-adjusting everything neutral with pushrod lenghts.
But need to do that is quite rare, in most cases Control throws are symmetrical enough as the model leaves Antonov plant.

  I think we know what we want to do, and we always fly with the handle perpendicular to the lines. I considered bending the horn but that made me nervous about breaking it. My second infinity had that sort of bend in it to get the travel right, some idiot got his angles wrong when he made he flap horn. I hate that guy.


Quote
In my opinion the best detail in these models is the construction technology. The CAD/CAM molds produce models with so much better form accuracy, stifness and stability. Also, clearly smaller extreme masses, especially lighter tail and prop may explain why they turn so nicely despite of quite conservative, even old fashioned aerodynamic design. L

     It's not even old-fashioned, it's very conservative, but sound. The engine was/is the same way, it's like some aerospace engineers decided to take an ST60 to it's logical conclusion and worked for 20 years to do it. Most of the wild experiments just prove that people had figured out the right answer a long time ago. To work "outside the box", you have to understand why there was a "box" in the first place!     

      I also agree that the construction techniques and workmanship are the strong points. When I retire I am considering actually doing what I have always wanted to do (but never had the space and shop to do it) - build enough jigs and fixtures to build airplanes on a semi-production basis. Not for sale, but for my own use and repeatable enough that I can make design changes and be pretty sure that the change I intended is the only difference.

   Nonetheless, while it's better than a lot of people's airplanes, it's certainly not some sort of paragon of performance. There are other designs that if built, powered, and trimmed properly, will probably fly better. But that's a pretty big "if"!  It's obviously good enough for Orestes to beat me on multiple occasions.

   Brett

   

Offline Randy Cuberly

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Re: Yatsenko Shark.
« Reply #28 on: July 28, 2018, 05:47:26 PM »
Thanks for the info Randy.
One of th local fliers here in Arizona "Gary Gingrich" has one of the YAKs and it is a in my opinion a very realistic looking airplane patterned after the full scale Russion YAK Aerobatic aircraft!

Gary will probably let me fly his if I ask but not sure I want to.  I'm not much more than a "Poor Boy living on Social Security these days and it would be a stretch for me to think about buying one but.... you know the old adage...I can dream, can't I?...

Nah, my question was mostly just curiosity.  But, His does look great in the air.  Gary is a good flier but not really Expert Quality yet and doesn't fly the Yak very much.

I have trouble finding much time to build lately and while I'm close to finishing a stunter now it will still be several weeks before it's done!  I would probably be best served for a practice plane by assembling the  ARF SV11 that I have !   

Randy Cuberly
Randy Cuberly
Tucson, AZ

Offline Doug Moon

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Re: Yatsenko Shark.
« Reply #29 on: July 28, 2018, 06:24:06 PM »
When I flew Orestes plane I did not notice any difference in inside/outside turns.
Doug Moon
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Offline Derek Barry

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Re: Yatsenko Shark.
« Reply #30 on: August 02, 2018, 07:36:38 PM »
I have flown 4 different shark's. I found all of them to be quite easy to fly, and very forgiving. They do lose a little performance in the wind, but in calm conditions they are pretty incredible. I have one of the originals here, it was the one Andre used in 2004. I have flown 2 of Orestes' sharks and one that Josias had at a team trials (it was the best) I think I fly a faster set up than most people, so maybe that's why it feels good to me.

Do I think it's the best plane ever? No I do not. If I did, that is what I would build. It's a damn good plane though.

Derek

Offline Derek Barry

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Re: Yatsenko Shark.
« Reply #31 on: August 02, 2018, 07:37:49 PM »


I did not experience anything Brett or Doug felt with any of the 4. None of them were electric.

D

Online Brett Buck

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Re: Yatsenko Shark.
« Reply #32 on: August 02, 2018, 08:13:15 PM »

I did not experience anything Brett or Doug felt with any of the 4. None of them were electric.

    That surprises me. It's a really good airplane (if for no other reasons, its close to trimmed as it comes) but there is a marked difference in corner exits compared to the more common designs, Imitation/Impact/Trivial Pursuit/Infinity. As much as it pains me to say, even the ThunderGazer. You can obviously do it very well with practice but was never able to come close to thinking "corner", hitting it, and then moving my concentration to the next corner like you can with the other airplanes, or just setting it level and looking away for a few second. Do that and it just does whatever it wants.

    Brett

Offline Derek Barry

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Re: Yatsenko Shark.
« Reply #33 on: August 03, 2018, 06:10:50 AM »
    That surprises me. It's a really good airplane (if for no other reasons, its close to trimmed as it comes) but there is a marked difference in corner exits compared to the more common designs, Imitation/Impact/Trivial Pursuit/Infinity. As much as it pains me to say, even the ThunderGazer. You can obviously do it very well with practice but was never able to come close to thinking "corner", hitting it, and then moving my concentration to the next corner like you can with the other airplanes, or just setting it level and looking away for a few second. Do that and it just does whatever it wants.

    Brett

Did you fly and electric or IC version?


Offline Scott Richlen

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Re: Yatsenko Shark.
« Reply #34 on: August 03, 2018, 07:10:11 AM »
Quote
CL fliers don't spend much money

Famous saying by Ben Franklin:

"There's Cheap.
And then there is Dirt Cheap.
But the cheapest cheap of all is Control-line Cheap!"

And why would I want to fly a plane that someone else built?  That's no fun.   ;D


Offline jose modesto

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Re: Yatsenko Shark.
« Reply #35 on: August 03, 2018, 07:32:40 AM »
There are four generations of the  Shark. All have different airfoils, moments, flying surface areas
A got to see the 5th generation fly at the worlds
Which did you guys fly ??
Orestes is flying gen #1
He unfortunately damaged a Gen 4 one week prior to leaving for the worlds. That was his plane for 2018 championship
Jose modesto

Offline Gerald Arana

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Re: Yatsenko Shark.
« Reply #36 on: August 03, 2018, 09:32:27 AM »

And why would I want to fly a plane that someone else built?  That's no fun.   ;D
[/quote]

I have to agree with you!

Not to derail this thread but, when I was in RC glider competition I always flew my own designs. Mainly to get a leg up on the competition and to stand out with "something different", i.e. elliptical flying surfaces when everybody else was flying square flying surfaces.

Later, Jerry

Online Brett Buck

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Re: Yatsenko Shark.
« Reply #37 on: August 03, 2018, 10:30:56 AM »
Did you fly and electric or IC version?

     2 Electric (Igor closed-loop system), 1 Discovery-Retro 60. Of the three, the Retro version flew the best overall. I think that is because the electric systems were not set up correctly - proving again the eternal maxim "if you can adjust it, you can adjust it wrong". The best of them, in terms of corner exit and having to fly it continuously, is Jim Aron's "Chumleymobile", it required less of this than the others.

    I don't know what to compare it to, other than the Skyray or other elevator-only airplanes. I strongly suspect if you could adjust the flap/elevator ratio, you could get it to fly like a lot of mainstream airplanes, because the dimensions, etc, are a lot like a mid-80's style airplane we have all flown. In fact, dimensionally, it's very similar to another airplane I would mention, but don't, because I have enough people mad at me without seeking them out. Let's say it is clear that the Yatsenko's never met Gid Adkisson and leave it at that.

   I *didn't* fly Orestes' airplane, it's only been 10 years - too soon. Maybe in 2028, I will be ready. Also, after having flown a few others, I am not so sure it would be a good idea to swap flights with Orestes.  I encourage Howard and Paul to skip that opportunity, too. And for God's sake, don't give him the Citation V or "For Reals" Impact to fly, and don't send him the plans!
 
     Brett

Offline Mike Palko

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Re: Yatsenko Shark.
« Reply #38 on: August 03, 2018, 10:57:16 AM »
   
   I *didn't* fly Orestes' airplane, it's only been 10 years - too soon. Maybe in 2028, I will be ready. Also, after having flown a few others, I am not so sure it would be a good idea to swap flights with Orestes.  I encourage Howard and Paul to skip that opportunity, too. And for God's sake, don't give him the Citation V or "For Reals" Impact to fly, and don't send him the plans!
 
     Brett

Paul flew Orestes Shark the same day I flew it. Doug, Paul and myself flew back to back to back. Actually, I think Paul took two flights on it.

Orestes Shark is the best airplane I have ever flown. The turn/stop was instant, the inside/outside turns were equal and it tracked on rails. I'm surprised this thread discusses trim as if there is one ideal for everyone.   

Mike

Offline jose modesto

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Re: Yatsenko Shark.
« Reply #39 on: August 03, 2018, 12:38:59 PM »
Brett. Orestes won’t trade his shark for any of those planes. Lol
He saw the light in 2004
Shark world placing 1-2-4-5. 3td was Igor the great.
five others in the top 15. Can you say DOMINANT
No impacts,thundergazers,imitations,infinity in sight.
You have to get out more often. 10 years to much time away. LOL
YES MIKE BEST EASIEST FLYIN PLANE.squares on demand. Equal turns
No sealed hinge lines,cable handles
I tried hard point handle on a shark Wow  Had to slow down the controls.

Jose modesto

Online Brett Buck

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Re: Yatsenko Shark.
« Reply #40 on: August 03, 2018, 01:41:22 PM »
Brett. Orestes won’t trade his shark for any of those planes. Lol
He saw the light in 2004
Shark world placing 1-2-4-5. 3td was Igor the great.
five others in the top 15. Can you say DOMINANT
No impacts,thundergazers,imitations,infinity in sight.
You have to get out more often. 10 years to much time away. LOL
YES MIKE BEST EASIEST FLYIN PLANE.squares on demand. Equal turns
No sealed hinge lines,cable handles

   OK, sure, whatever. I will use whatever gives me the best chance to win, not what Jose Modesto wants.

   Brett

Offline jose modesto

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Re: Yatsenko Shark.
« Reply #41 on: August 03, 2018, 01:53:22 PM »
You dint see LOL
You know what you know
There are other known
BTW you plane is usually the best trimmed model at the Nat’s. Really enjoy watching it. If you were better at graphics (fuse)your plane would win more.
Jose modesto

Offline Derek Barry

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Re: Yatsenko Shark.
« Reply #42 on: August 03, 2018, 02:26:19 PM »
Jose, what ever happened to that balsa shark your brought to the Nat's? The one with an open bay wing...

Derek

Offline Derek Barry

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Re: Yatsenko Shark.
« Reply #43 on: August 03, 2018, 02:30:47 PM »
You dint see LOL
You know what you know
There are other known
BTW you plane is usually the best trimmed model at the Nat’s. Really enjoy watching it. If you were better at graphics (fuse)your plane would win more.
Jose modesto

Brett should order some stickers from Aviojet to add a little flash to his fuse.

Detek

Offline RandySmith

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Re: Yatsenko Shark.
« Reply #44 on: August 03, 2018, 02:35:46 PM »
JOSE
The  Shark is a  great plane, not the best flying of the  Yatsenko planes, the Classic is one that is better,
I and many other Top pilots have flown the Shark, and many TOP designs that were built straight and at a good weight.
Again many pilots  will not  trade their planes  for a  Shark, because it is their  belief the  Shark is  not  the best flying plane in the  world, because it is  not
It maybe the best flying plane Orestes has flown, but  doesn't have the benefit of much knowledge of other  top planes, and  he  likes pre built molded airplanes , That is a good thing because the  parts are  repeatable, as are  weights, so when you mold the plane with the  outside finish built in, you have a very nice  repeatable   stunt ship

Regards
Randy

Offline jose modesto

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Re: Yatsenko Shark.
« Reply #45 on: August 03, 2018, 02:44:57 PM »
Lol. it’s the red on the nose. Dark and the white on the tail area.
Distorts the bottom exits appearance. The plane exits level and flat. It’s an illusion
Brett not a negative or a dig. Just an  observation of your model across the bottom exit of the squares.
You can’t see it on film.
Minor but it can affect a judges view.
Flame suit on lol
Jose modesto

Online Brett Buck

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Re: Yatsenko Shark.
« Reply #46 on: August 03, 2018, 03:24:44 PM »
Lol. it’s the red on the nose. Dark and the white on the tail area.
Distorts the bottom exits appearance. The plane exits level and flat. It’s an illusion
Brett not a negative or a dig. Just an  observation of your model across the bottom exit of the squares.
You can’t see it on film.
Minor but it can affect a judges view.
Flame suit on lol
Jose modesto

   You aren't really bothering me, so don't worry about that. It's mildly amusing that you figure you know more about what gets scores in big contests than I do, and (from the earlier comments, more about what it takes to be successful than Paul/David/Ted/Randy/Derek) but it's hardly a new phenomenon.

   We have a perfectly good way to determine who knows what they are doing, and not. We have a test every May, July, and October.  I am OK using that.

    If I was really irritated, you would know it...

     Brett

   

Online Brett Buck

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Re: Yatsenko Shark.
« Reply #47 on: August 03, 2018, 03:29:46 PM »
Brett should order some stickers from Aviojet to add a little flash to his fuse.

     Oh, I don't consider myself capable of that, er, "level" of modeling achievement.

     Brett

     

Offline jose modesto

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Re: Yatsenko Shark.
« Reply #48 on: August 03, 2018, 03:56:16 PM »
Brett you are to sensitive. I don’t pretend to know everything. I only have an observation about your fuse paint trim It can create an illusion of not being flat at square exit.
An observation shared by some.
As I said your plane is usually in perfect trim. Maybe the best of current models that I have seen.
I have also seen you struggle at the team trials with your motor run and lack of power. Perfect you are not.
I can’t tell you anything about pattern shapes and what it takes to win at major contest. You are an acknowledged master at shapes and trimming.
To sensitive on your part
With respect  jose modesto

Offline jose modesto

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Re: Yatsenko Shark.
« Reply #49 on: August 03, 2018, 04:11:42 PM »
Randy I value your opinion. But it is just your opinion.
I NEVER said the shark is the best plane. 1992 Impact was awesome,best I have seen.
None of your models have ever won open stunt at the Nat’s. That does not detract from their greatness.

You can order the Shark in raw balsa if you so desire. This allows you to finish as you like
With the current BOM you can have the Yatsenko build the wings,flaps,stab,elevator fin,cheek cowl and scoop.
Purchase the fuse skins molded in fiberglass and construct the fuse install the takeapart hardware,bellcranck and you are BOM compliant

By having the fuse mold it is easy to build that model. BTW they will provide all fuse formers.

By having the Shark molds we can produce them in any finish that we like.

I will have the full Shark molds in my hand by September. I also have 15 years molding experience,that should be interesting.

At the worlds the best pipe set up was flown by a sweede pilot VMax 46 prepared by you. Really good. Sounded familiar. Second was C Ruid PA75.
Jose modesto



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