Hi, Aki,
Congratulations on your flight and thank you for sharing the flight with us. I loved watching the whole thing. Thank your friend for shooting such high quality video and posting it online.
My main impression from the videos is: that plane stays in the air forever!
First, and most important, what's your secret ? :-)
OK, more questions. I notice that you have very long wing posts. With the height of the wing tips, it seems that the propeller has full clearance and never touches the ceiling. Question: what are the reasons that you have such long wing posts?
At launch, your model flies extremely flat. How is this achieved? The CG is probably far back. Do you also use downthrust to counteract the pitch-up moment from the propeller thrust? Do you use motor stick bowing under high rubber tension to slow the climb?
Finally, on the VP. How long does it take for the pitch change to take place? Does the pitch change gradually over time?
Thank you.
-Kang
--- In Indoor_Construction_at_yahoogroups.com, "akihirodanjo" <adanjo-373@...> wrote:
>
> > I was also interested in the V shape at the front of your VP prop. What is that?
>
> Eric san,
> It is a torsion bar support.
> The VP system does not use a coiled spring, but a torsion bar spring (=
> prop shaft).
> Good flying, Aki
>
Received on Tue Oct 12 2010 - 09:16:58 CEST