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Advanced Aviation Cobra / King Cobra

King Cobra B

The Cobra was a completely new design according to the releases from Advanced Aviation. The wing is totally new and, although the aircraft still has a cruciform empennage, it has been completely changed to fit it for its role as a three-axis device. The Cobra was presented for the first time at the 1982 Oshkosh and was next shown at the Sun 'n' Fun event at Lakeland the same year. Recognition points include a rectangular planform wing with triangular wing tips and double-skin fabric over the whole chord. It has spoilerons of single thickness cloth and the trailing edge is notched between each batten, giving the impression of a batwing. Options are a braked steerable nosewheel, wheel fairings, reserve petrol tank, floats, skis, a parachute and an instrument panel. A single-seat, single-engined, high-wing monoplane with conventional, three-axis control. The wing has unswept leading and trailing edges, and constant chord except for triangular wing tips; cruciform tail. Pitch control by elevator on tail; yaw control by fully flying rudder; roll control by half-span spoilerons; control inputs through stick for pitch/roll and pedals for yaw. The wing was braced from above by kingpost and cables, from below by cables; wing profile; 90% double-surface. Undercarriage has three wheels in tricycle formation; torsion bar suspension. Optional push-right go-right nose-wheel steering connected to yaw control. Optional brake on nosewheel. Aluminium tube framework, without pod. Engine mounted above wing driving pusher propeller. Tubing used is 6061T6 anodized aluminium; wing covering is Dacron. Rigging is vinyl coated stainless-steel cable. Price (January 1983) $4995 in kit form.


The two seat King Cobra debuted at 1983’s Sun ‘n Fun. The two seat trainer version of the Cobra and has side-by-side seating configuration, with dual flying and engine controls for instructional purposes. The nose wheel is steer-able on both models, inline planetary gear, optional floats.

Engine: Cuyuna ULII-02 (429 cc) 35 hp.
Static thrust: 225 lb.
Empty wt: 250 lb.     
Wing span: 35ft.
Wing area: 152 sq.ft.
Aspect ratio: 8.0.
Height: 9ft 3in.     
Length: 17ft 6in.
Fuel cap: 5 USG.     
Max wt: 525 lb.
Stall: 26 mph.         
Max speed: 63 mph.
Vne: 70 mph.         
Design limit: +5, -3g.
Climb rate: 800 fpm @ 38 mph.
Glide ratio: 9-1.
Wing loading: 3.39 lb/sq.ft.     
Power loading: 15 lb/hp.
Construction: Aluminium, Dacron.

Engine: Cuyuna 430RR, 30 hp at 6500 rpm.
Propeller dia/pitch: 54x28in, 1.37x0.71m.
Reduction, ratio: 2.1/1.     
Power per unit area: 0.20 hp/sq.ft, 2.1 hp/sq.m.
Fuel capacity: 4.8 US gal, 4.0 Imp gal, 18.2 lt
Wing span: 35.0ft, 10.7m.
Constant chord: 4.3 ft, 1.30 m.     
Sweepback: 0 Degs
Total wing area: 152 sq.ft, 14.1sq.m.
Wing aspect ratio: 8.0.
Empty weight: 235 lb, 107 kg.     
Max take-off weight: 525 lb, 238 kg.
Payload:    290 lb, 132kg.     
Max wing loading: 3.45 lb/sq.ft, 16.9 kg/sq.m.
Max pwr load: 17.5 lb/hp, 7.9 kg/hp.
Max level speed:    65 mph, 105 kph.
Vne: 70 mph, 113 kph.
Max cruising speed: 55 mph, 88 kph.
Economy cruise: 50 mph, 80 kph.         
Stalling speed: 24 mph, 38 kph.
Max SL climb: 1000 ft/min, 5.1 m/s.
Best glide ratio: 9/1.
Take-off dist: 60-100ft, 18-30m.     
Landing distance:    100 ft, 30 m.
Service ceiling: 9900ft, 3000m.         
Range at cruise: 130 mile, 209 km.

Cobra B
Engine: Rotax 447
Empty wt: 250 lb        
Max wt: 625 lbs    
Wing span: 35ft
Wing area: 140 sq.ft.
Wing loading: 3.6 lb/sq.ft
Power loading: 13.13 lb/hp
Max speed: 60 mph
Cruise: 52 mph     
Stall: 25 mph    
Vne: 75 mph    
Seats: 1.

King Cobra

Engine: Rotax 532
Empty wt.: 325 lb
Max wt.: 775 lb    
Wing span: 34ft 6in     
Wing area: 146 sq.ft.
Wing loading: 5.3 lb/sq.ft
Power loading: 12.11 lb/hp
Max speed: 65 mph
Cruise: 50 mph    
Stall: 31 mph    
Vne: 75 mph    
Seats: 2





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