It would be interesting to know just how much lead would be needed to
balance the tailplanes in this way...
Jeff - Baby Blue
299 hours
Gilles Thesee wrote:
> <Gilles.Thesee@ac-grenoble.fr>
>
> William Harrison a crit :
>> Many thanks to Martin Le Poidevin at Flyer Magazine for letting us
>> distribute the article on flutter, which is now attached. It is PDF
>> and may be easier to read if you print it.
>
> William and all,
>
> Thanks for this very knowledgeable article.
> By the way, balancing control surfaces directly instead of using a bob
> weight on a balance arm is considered safer when practicable,
> especially if the weight is evenly distributed spanwise.
> I'm aware of at least two aerobatics airplanes that went down due to
> aileron balance arm attachment failure followed by explosive flutter.
> In one case the crew was able to bail out.
>
> Has anyone mentioned balancing each tailplane directly with lead in
> the leading edge? This would eliminate any possible slop on the
> balance arm attachment points and reduce wear an tear on the torque tube.
>
> FWIW,
> Best regards,
|