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FFA P-16
FFA was awarded development contract July 1952 for P-16.04 interceptor/ground-attack aircraft with Armstrong Siddeley Sapphire, first flown April 28,1955. Fitted with leading-edge flaps, the first prototype had a wing thickness/chord ratio of between 5 and 6%. The second prototype was reduced to 4% and a higher powered turbojet.
 P-16.04
The airframe is low wing, with 20o sweepback. Swept tail surfaces, have a variable incidence tailplane mounted mid-way up the fin, with conventional rudder and elevators. The ailerons can be lowered with Fowler flaps to provide additional flap area. Full-span leading edge flaps and an air-brake is fitted on each side of the rear fuselage. A tricycle undercarriage, with twin wheels on each unit, main wheels retracting inwards into the fuselage and the nose wheel retracts reward.
Internal fuel capacity is 550 gal, including fixed wingtip tanks. The is provision for two 100 gal underwing jettisonable tanks. Armament is two 30mm Hispano cannon in the nose and 44 air-to-air unguided rockets in fuselage pack.
The prototype Mk.III first flew in March 1960.
 Mk.III
Program cancelled by Swiss Government but continued as private venture until June 1960; five aircraft built.
The P-16 wing formed the basis of the Gates Learjet design.
1st prototype
Engine: Armstrong Siddley Sapprire A.S.Sa.6, 7900 lb
Loaded weight: 17,857 lb
Max speed: 630 mph approx.
Armament: 2 x 30mm Oerlikon 302RK cannon
Engine: Armstrong-Siddeley Sapphire Sa.7 P-16 Mk.III
Engine: Bristol Siddeley Sapphire, 11,000 lb
Wingspan: 36 ft 7 in
Wing area: 320 sq.ft
Length: 46 ft 9 in
Height: 13 ft 5 in
Empty weight: 15,520 lb
MTOW: 27,795 lb
Internal fuel: 550 gal
Max speed: 696 mph SL
Service ceiling: 46,000 ft
Max range: 620 mi
Armament: 2 x 30mm Hispano cannon
Hardpoints: 4
Wheel track: 10 ft 2 in
Wheel base: 18 ft
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