Originally posted by bentwings
aero....,
To answer your questions....yes the plane does vibrate..both of them do ..quite a lot infact. We expected this and allowed for it in construction. The tab was an afterthought for some scale detail. Whether it provided boost or not didn't matter. It simply was a scale operating feature. It proved to be too delicate for everyday flying in a hotrod plane. that being the case..implied functionality took over from realism when we reinstalled it.
I wouldn't say the plane is flown out of scale speeds if you use dynamic scalling. In fact 110 is still on the slow side for a 22% warbird. Faster than average..yes but not excessive.
I agree with you when you say 'reducing flutter'. The purpose of 'anti' flutter measures are to put the flutter speed higher than the maximum speed your plane ever will attain not necessarily to eliminate it. Since we as modelers don't have the resources to do endless research, we have to take the experts' advice. For example the full sized Corsair went through at least 6 aileron designs before the flutter was fixed. My counter balances and other measures do the job and I made them so they "look scale" A purist will quickly shoot me down. Personally i don't care as long as my plane survives normal..and abnormal flight.
I also agree that full size planes have them. for very good reasons. Flight loads are far higher per unit of strength and simply adding a bigger and heavier control mechanism just makes the problem worse. (modeler method)
The large 40-50% aerobatic guys are finding this out. 4 servos per control surface is getting complex and overloading the rest of the electrical system. A well done boost tab works here. And reduces load to a manageable level. I'm sure youv'e seen them. They are large enough area wise to provide meaninfull loads. I think you will see more of these. They may not fit the classic formulas but work they will.
You obviouly found this out and are making good use of them. Very wise.
The whole idea of the boost tab effectivness rolls around dynamic scalling which is a complex subject in itself.
whew... this is getting deep....how about picking on someone else for a while. ... peace??
bentwings
Bentwing, (I wish I knew your name)
It might be getting deep, but brain storming is what this is all about.
I have been asked about installing boost tabs in smaller airplanes, and I personnally don't think it would help much. So with the larger airplanes to me there is no otherway.
I am presently installing a rudder boost tab on a 80" Giles. The servo that I installed on this is a Futaba S28. Not very powerfull and not digital, but plenty powerfull with a boos tab.
I'll have pictures here soon of this installation.