REFLECTOR:NACA inlet shape

Wed, 6 Aug 2003 17:17:26 EDT

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Jerry,

The original NACA's were made the way you outlined. That is they were cut in 
the top with the front remaining attached. Then the section was simply lowered 
to the depth of the NACA cutout in the firewall. This was done by cutting 
through the inner skin on the bottom of the ducts, inside the fuselage so the 
curve was nice and gentle. The bottom of the ducts were then held in position and 
the sides installed. The sides were cut from glass laid up on a sheet of 
glass (not fiber glass---glass). This results in very smooth sides for the NACA's. 
all of the various parts are then wedged into position using cut down paint 
stirers while layups applied on the inside cure.

Bob

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<HTML>Jerry, 
 
The original NACA's were made the way you outlined. That is they were cut in=
 the top with the front remaining attached. Then the section was simply lowe=
red to the depth of the NACA cutout in the firewall. This was done by cuttin=
g through the inner skin on the bottom of the ducts, inside the fuselage so=20=
the curve was nice and gentle. The bottom of the ducts were then held in pos=
ition and the sides installed. The sides were cut from glass laid up on a sh=
eet of glass (not fiber glass---glass). This results in very smooth sides fo=
r the NACA's. all of the various parts are then wedged into position using c=
ut down paint stirers while layups applied on the inside cure. 
 
Bob</HTML>

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