[NSRCA-discussion] An education in balsa usage for pattern

[jim.woodward at schroth.com]

The electric Extra 300 from Extreme Flight R/C is another education in
consturtion.  The plane is huge for its weight.  Each place the cross
stringers would (in the past) have been a butt-joint, the receiving piece
is flared out such that a notch can be cut to receive the cross stringer.
Now, a 3 sided glue joint with mechanical lock is formed, instead of the
old butt-joint.  The canopy is one-piece clear, painted where necessary
for the color scheme, with a very light balsa frame, held on by magnets. 
The cowl is a thin, painted plastic. Extreme Flight did a "break-through"
job on this ARF!
Jim W.


> According to the "correct" definition of a "Composite material", wood =
> composite!  So is concrete.
>
> Great comments, Mike!  I hope to hold my own and "represent" in D-1 this
> year with my balsa Viper...
>
> At least I hope not to embarrass myself too much.  The plane is great
> though!  I think the wood planes attenuate noise far better, and also can
> have greater vibration dampening characteristics.
>
>
>
> On 3/28/06, Mike Hester <kerlock at comcast.net> wrote:
>>
>> ""It seems that everything I read of late seems to indicate that light
>> weight and strength only come with composite construction.""
>>
>>
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