Extra-Amp

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This is my next attempt at a slightly larger/heaver model. I sort of scaled it on a Extra 300, so I called it Extra-Amp.

X-Tra1.jpg (23634 bytes) The stats for this plane are:

Weight                   6 3/4lbs
Wing Span            60"
Wing Area            720sq/inch
Wing section         Clark Y
Motor                     Astro40G
Batteries                 21 Sanyo 2000
Functions                Flaperons, Elevator, Rudder, Retracts, Motor.

I built the wing big enough to fit Robart 601 retracts . This meant a wing root of about 360mm. I only just managed to squeeze the 70mm lite wheels inside the profile. X-Tra2.jpg (17096 bytes)
X-Tra1a.jpg (18378 bytes)  
This was my first attempt at using retracts so it was a bit of a guess on how and if they would work properly. X-Tra4.jpg (17208 bytes)

More pics of this next page