Weight limit discussion

BUDDYonRC at aol.com BUDDYonRC at aol.com
Fri Feb 25 15:32:12 AKST 2005


 
In a message dated 2/25/2005 6:13:19 PM Central Standard Time,  tbrox at cox.net 
writes:

One must remember history to help here. Has any past  changes ever brought 
the cost of pattern down? I believe it has always made it  more expensive such 
as what happened with engine displacement.
       I am envisioning  a new pattern plane for the new weight.
It will be a monoplane, 78" ws, 78" length, fuse  height 18", fuse width 10", 
wing root 25", wing tip15", 15degree sweep at the  quarter chord, 12% airfoil 
making the wing root 3" thick, stab 28" and nearly  2" thick. 
       I hope it doesnt  look exagerated, but I would be afraid this would be 
the trend. Obviously I  dont know to what extent the poor flying quality of 
this kind of design would  be, but who knows what could happen. 
       Classic case of  opening one door into a room full of doors. 



Terry
You know more about pattern design than that. The engine required to pull  
that monster will surely weigh in at four pounds add gear, radio exhaust system  
for another four pounds and covering or paint of a half pound that means the  
airframe will have to be three and a half pounds. you better start looking 
for  weightless balsa. Be sure to install giant control surfaces so you will be 
able  to use it as a fun fly and all your effort wont be wasted
Buddy   
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