LeRoy C Cordes wrote:
>
> Tapio, when you say waterfall do you mean the plane just falls back tail
> first ? If so, do you know what is the usual cause ?
>
Not tailslide, but rather so that the model piches up, then stops,
starts sinking straight down keeping attitude, but slowly drops nose
until it speeds up again and starts flying. It seems that the model does
not resist pitch-up strong enough, and the manouver starts with prop
stall, leading wing stall and partial tailplane stall, but eventually
the nose drops enough so that normal flow over the surfaces is attained
and the flight goes on, but half a meter to one meter lower. The thing
is not constant case of over-elevation, and reducing the decalage
slightly does not help. Rather it seems that the model is quite
sensitive to local turbulence.
-Tapio-
Received on Sun Nov 09 2008 - 11:30:44 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:45 CET