>
> I just read the latest reports from Reno, which now report
> 9 dead. These included a photo of the plane in descent
> which showed that the left elevator was missing its trim
> tab. From other reading, this seems to be an anti-servo
> tab, which applies a trim force to the elevator, which
> positions the elevator. With this tab gone, the control
> force necessary to control the aircraft would have likely
> been extremely large.
>
Not extremely large, but tiring over an extended period of time. The
primary purpose of elevator trim is to set your airspeed. Contrary to what
people unfamiliar with aircraft might think, the aircraft pitch determines your
airspeed and the engine power sets your rate of climb (or dscent).
Chris
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