Group B130
MAKE: Fuselage - Assembly
Information related to equipment such as frame, composite, harness etc.
General:
Noise Barrier:
Have Honeycomb or other wall between pilot and engine. Can be part of firewall.
Supporting on Ground
Nose support
Idea – Consider a small, light wheel with spokes, that will collapse on a hard landing.
Stronger & Quieter?
Consider foam filling the tubing in the frame since it might make the frame stronger and dampen noise a little.
Composite Fuselage:
Ultrasport 254 is 16’-8" long and 7’-6" tall.
Synchropter is 13’ long and 5’-9" tall; plus blades
Tubular Fuselage:
Consider 3" to 1-1/2" tapered aluminum tube for tail spar.
Seat
There must be a minimum or ½" between seat of pilot and tube for foam "cushion".
Yaw
If the vertical surface area in front of the mast is too large it will detrimentally affect Yaw by wanting to over yaw the copter.
Conversation with B.A.
(Boeing) Nov. 13, 1999Prepreg carbon material
Grade 190
190 grams/ square meter
0.075 millimeters thick
Grade 145
145 grams / square meter
0.055 millimeters thick
Curing is done at 250 degrees F?C?
Commercial (such as Boeing) is 35% resin.
Military is 32% resin.
Golf club shafts are produced around a mandrel and then a shrink wrap film is placed over the carbon. Any bleeding, if any, would be out the ends only. The inside and the outside are smooth.
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Last Revised: Nov 13, 1999