RE: Graupner Race Rat C.G.
Hello Amaury,
Thank you for response.
As there some period passed by from the time when I started this thread,
I made several test flights to find the proper C.G , and I found out that
this model is not too much critical of C.G.
Finally I left the C.G. at the beginning of the cannopy, like marked at one
picture below.
Also, I made some changes to the Race Rat, and it is quite modified
to gain much more speed.
Now it have Glass/Carbon/Kevlar fuselage, foam/glass/balsa wings
and MH-24 wing profile.
Original one was designed around Graupner Speed 600 DD electric set,
but I could not resist to modify it to glow power.
At first I used OS .15 (2,5 ccm), It flew much faster than electric,
and it performed really great.
After that I finnaly tried OS 32 SX (5.23 cc) engine (BTW a really great engine !)
on 8x8 APC prop.
With this combination the performance is simply outstanding !!! [sm=lol.gif]
Kristijan Kljucaric