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 41 
 on: Yesterday at 03:33:13 PM 
Started by Joseph Patterson - Last post by Jason Greer
Thanks for all that you do as well, Doug!  We really appreciate you and Mrs.Kathleen coming up and taking care of us!

Thanks,
Jason

 42 
 on: Yesterday at 03:27:07 PM 
Started by Bootlegger - Last post by Dwayne Donnelly
Can't we just talk about control line model airplanes?
All other subjects are very personal and there are other forums for these subjects. Coffee
Dan

Agree'd, there needs to be a no politics no religion on this forum, for crying out loud guy's this a toy airplane site, leave the politics and religion at home, as stated there are other sites for that stuff.

 43 
 on: Yesterday at 02:38:09 PM 
Started by Rusty Pieper - Last post by bob whitney


i dont own one of those things

 44 
 on: Yesterday at 02:18:14 PM 
Started by #Liner - Last post by #Liner
Hey Chris:

Here's a thread showing my nicest installation.

You may want to double-check me on the fuel load needed -- I think that you need four ounces to keep a Fox lit through a pattern, but it looks like you've got a smallish plane, so it may be less.
Looks like you are using a aluminum sheet bent up to fit the tank?

Do these look functional?

 45 
 on: Yesterday at 01:58:39 PM 
Started by Avaiojet - Last post by Avaiojet
I said I was going to use silk on the tail and I did.

In all honesty, I'm glad I used just about the last of this old silkspan stash I had. I don't think I'll be using silkspan in the future. First coat of dope and it went sag a bit, not much, but enough to get me concerned.

I hit it with my heat gun and it came back tight. I hope I don't have to do this after each coat of dope?

Silk is all I'll be using from this point forward. I don't care if it weighs twice as much as silkspan.

I have the application of silk nailed and am confident with it and applying it.

Todays efforts.

Charles
 

 46 
 on: Yesterday at 01:57:05 PM 
Started by Chris Wilson - Last post by Ted Fancher
I have always considered the amount of "overhang" to be the measurement from the line attachment point or line pivot to the wrist's centre or the control centre, same as with a bell crank.
(But rarely do I see it measured or mentioned that way.)

So even if you have a straight bar as a handle it will still hang over the pivot point at least the distance of your palm.

Now if you accept this as logical, then surely a zero overhang attachment point is inline with the wrists pivot point?
(So it is amusing to hear discussions about minimising overhang to reduce loads as much as possible.)

Anyone seen or tried the above described theoretical zero overhang handle?

Actually Chris, the exact subjects you bring up were discussed in detail in print in the Feb. and March 1985 issues of Model Aviation Magazine (the official AMA magazine.  In addition to covering  the wrist hinge point you address as primal in terms of overhang it also addressed the negative aspects Brett mentioned re the negative effects of zero overhang handles.  The articles included some simple hand drawn figures and tables showing and/or describing the relationship between overhang and control force inputs necessary to deflect the controls.  I'm familiar with these articles because I wrote them and have photo copies in my library.

Somewhere in my articles in the I addressed a personal lesson on the effects of overhang.  Several California fliers were at a US Nats when Bob Hunt showed up with a fantastic looking new handle with an inflight neutral adjustment cleverly engineered into it.  It was so cool that at least two of us, Gary McClellan and myself bought two of them to try as replacements for our standard Hot Rocks (the handles I had been using since about age eleven).  Both Gary and I managed to pull out of our first reverse wingovers with Bob's handles about a half inch too low (on a grass field) with our Nats stunters fortunately with no damage.

There were two items at play in that event.  The first that Bob's handles were molded with noticeable down ("natural") bias and, second, the "arms on his handle were approx. three inches long or about three times that of the Hot Rock.  I subsequently shortened the overhang to match that of the Hot Rock which improved the input force issue but was unable to accommodate the bias and, as a result, I abandoned the handle--but not the lessons I learned from using it.  it was that experience combined with the loss of a brand new Nats bound stunter due to a failed up cable in my modified Bob Baron handle that led me to research better alternatives.  That initiative plus caddying Paul Walker's hard point handle at the Shanghai World Champs that led me to "design" (probably an unfair word considering the legends of the stunt event whose minds I picked without their knowledge but also without subsequent recriminations) the Precision Pro Handle that I "marketed" for a couple of years before passing on the rights to Carl Shoup and which is now known as the "Ted" handle and utilized by many fliers with some success around the world.

A final note on overhang that might be of interest to readers.  A hands on experiment to experience the effect of more or less overhang would be  to construct a fake handle that fits their hand with interchangeable "up" arms of say, zero to six inches, to which can be attached a gallon bottle of water (which weighs about eight pounds if picked up with a normal grip around its handle.  Then pick it up sequentially with the longer "up" arms attached and note the increased effort required.  (Technically, it must be admitted, not an accurate measure but enounh to convince most of the concept.  If skeptical one could connect the bottle to a control line, run it over a mounted pully and back to the handle to get a truer measure.

Chris, you might find the articles of interest and they can be downloaded from the AMA website.  I could, if necessary, scan and post them here but have had only modest success with doing so.

Ted Fancher

 47 
 on: Yesterday at 01:47:45 PM 
Started by Frank Imbriaco - Last post by Avaiojet
Frank,

WOW! You're doing a toy, interesting.

Let's see some photos!

Charles

 48 
 on: Yesterday at 01:26:54 PM 
Started by Frank Imbriaco - Last post by Frank Imbriaco
 Charles:
Yes, that option exists, but for authenticity I'm trying to keep with single stage and avoid a clear topping.
 The metal toy I'm  restoring/painting is from 1946.
If possible, I try to remain faithful to an era. As we all know, Rustoleum wasn't around then but their hammered finish colors are a pretty good match and single stage.

Ken:
That is a really sweet ride.
Doubt you've ever seen yourself coming/going in that one !

 49 
 on: Yesterday at 01:15:34 PM 
Started by Brent Williams - Last post by Terrence Durrill

    Ken,
       Yes, we found that the kit OMEGA was plenty hot........it certainly lived up to the caution comments on the plans about high speed and maneuverability.    Coffee    Hoff

 50 
 on: Yesterday at 12:59:18 PM 
Started by Chris Wilson - Last post by RandySmith
Memorable coaching is effective coaching.

Didn't the Chinese at one point use finger-rings with lines attached to them?

Yes
I fly with my first and little finger, and use pressure from these 2 fingers to have the precise control over the plane in maneuvers.
The middle 2 fingers basically are there just as support.
When you correct , and keep the manuover dead on track,  using the 2 fingers makes it so much more precise\


Randy

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