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Birdman Enterprises Sky Raider
 
Birdman-SkyRaid
 
The Sky Raider was designed for advanced pilots. The glider came with a 60 inch control bar, adjustable wires for either seated or prone, J-wire, double deflexers, cambered keel, and seat assembly.
 
The airframe is made from 6061-T6 1 5/8in x .058 clear anodised seamless tubing. Spars and exterior sleeving are precision drilled. Crush proof stainless steel bushings, plastic end caps and plastic saddles are used. The keel is cambered by use of a J-wire.
 
Top and bottom rigging is 3/32in 7x7 PVC coated stainless steel aircraft cable. J-wire is 1/8in 7x7 stainless steel aircraft. Turnbuckles are used on J-wire, top rigging and deflexers. Tail rig quick pin is used on top rigging. All cable ends are double nico pressed.
 
Nose plate, tangs, kingpost bracket, control bar bracket and shackles are stainless steel. Nuts and bolts are aircraft quality.
 
The custom sail, 3.8oz stabilised Howe and Bainbridge dacron, was available in 11 colours. Stress points are reinforced with 10oz dacron. Seams are double zig-zag stitched. The tip cord extension is supported by fibreglass battens.
The seat is constructed with webing or 5/16in polypropelene rope. A backstrap was standard. A prone harness was available – Simpson or UP.
 
21x15
Leading edge: 21 ft
Keel length: 15 ft
Wing span: 32.5 ft
Wing area: 182 sq,ft
Aspect ratio: 5.9
Nose angle: 100˚
Sail billow: 1.5˚
Weight: 45 lb
Pilot weight: 120-155 lb
Takeoff speed: 12 mph
Stall speed: 16 mph
Max speed: 45 mph
Best glide ratio (L/D): 7-1
Best L/D speed: 22 mph
Min sink: 225 fpm
 
22 x 16
Leading edge: 22 ft
Keel length: 16 ft
Wing span: 34.5 ft
Wing area: 200 sq,ft
Aspect ratio: 6.0
Nose angle: 100˚
Sail billow: 1.8˚
Weight: 47 lb
Pilot weight: 150-200 lb
Takeoff speed: 12 mph
Stall speed: 16 mph
Max speed: 45 mph
Best glide ratio (L/D): 7-1
Best L/D speed: 22 mph
Min sink: 225 fpm
 
Birdman-SkyRaid-ld
 
 
 
 


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