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Shirlen Big Cootie

The Big Cootie is a modernized version of the Powell PH Racer biplane for homebuilt construction. The aircraft is a single seat biplane with conventional landing gear, designed for mild aerobatics. The fuselage is welded steel tube construction with aircraft fabric covering. The cowling is fiberglass. The ailerons are controlled with push-pull tubes. The wings use wooden spars with plywood leading edges.
The prototype, N84Z, survived an in-flight impact with powerlines during its initial testing. It was rebuilt at the Piedmont Aerospace Institute at Smith Reynolds Airport in Winston-Salem, North Carolina. A Continental A-80 80 hp (60 kW) engine replaced the Lycoming O-145 65 hp (48 kW) engine installed in the prototype.
The kits included all premolded composite parts. All metal parts and fuselage are welded. The wings and tail are attached like a glider and a removed in 5 minutes.

Gross Wt. 750 lb
Empty Wt. 467 lb
Fuel capacity 12 USG
Wingspan 18’9”
Length 14’
Top speed 140 mph
Cruise 120 mph
Stall 63 mph
Takeoff run 500 ft
Landing roll 500 ft
Range 300 sm

Engine: Rotax 912, 80 hp
HP range: 80-120
Height: 6.4 ft
Length: 20.4 ft
Wing span: 29.4 ft
Wing area: 113.8 sq.ft
Empty weight: 550 lb
Gross weight: 1200 lb
Fuel capacity: 18 USG
Top speed: 190 mph
Cruise: 160 mph
Stall: 40 mph
Range: 690 sm
Rate of climb: 1600 fpm
Takeoff dist: 230 ft
Landing dist: 230 ft
Seats: 2
Landing gear: nose or tailwheel


Shirlen Big Cootie
Engine: 1 × Lycoming O-145, 65 hp (48 kW)
Propeller: 2-bladed
Length: 15 ft 9 in (4.80 m)
Wingspan: 15 ft (4.6 m)
Airfoil: RAF 15
Empty weight: 467 lb (212 kg)
Gross weight: 750 lb (340 kg)
Fuel capacity: 12 U.S. gallons (45 L; 10.0 imp gal)
Maximum speed: 122 kn; 225 km/h (140 mph)
Cruise speed: 104 kn; 193 km/h (120 mph)
Stall speed: 55 kn; 101 km/h (63 mph)
G limits: -4g
Crew: 1


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