steveadams
Joined: 10 Jan 2006
Posts: 191
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 Posted: Mon Jun 22, 2009 4:39 am Post subject: Re: ZBAG, a respectful question: a modest answer |
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| Gig Giacona wrote: | I can't think of a simple or cost effective way to modify the design that would address this issue. I have no doubt that someone could design a complex system of weights and/or pulleys that would do it but complex isn't why I decided to build a 601XL and I'm not that hot for a complex change for a problem that shouldn't even show itself except at the edges of the flight envelope and can be trained around.
As far as changing the length of the upper and lower elevator horns you then get into the issue that there isn't enough room in the cockpit for the stick to move all the way.
| d.goddard(at)ns.sympatico wrote: | No the stops do not affect the forces, they stop a pilot from inadvertantly
applying too much elevator as a consequence of the decreasing force. That's
certainly one way to go, and by far the easiest and least expensive. Do you
have an objection to an optional change that addresses the issue in a
different way? I have no idea what it would cost as the option doesn't
exist, I'm not sure we could simply assume it would be expensive or
complicated, we could likely assume it would not be required as a retrofit.
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An antiservo trim tab would provide progressively increasing forces with increasing elevator deflection. While not all that simple, the design is in use in many certified aircraft as well as the CH640.
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