The Larson F-12 Baby was a sports biplane built in the US in the early 1960s. It was intended to produce it ready to fly or homebuilt from kits or plans but only one was completed.
The Baby was a single bay single engine, single seat biplane with stagger. The wings were wooden structures with two spars and fabric covering; the upper wing had 1° of dihedral and the lower one 3°. There were ailerons on both wings, with aluminium frames and again fabric covered. The fuselage and empennage were fabric covered, welded steel structures. It had fixed conventional landing gear with rubber sprung main legs, aluminium wheels with brakes and a sprung tailwheel.
The Baby was powered by an 85 hp (63 kW) Continental C85, its fuel tank in the fuselage behind the engine and in front of the single seat, open cockpit, anf firdt flew in 1961.
Powerplant: 1 × Continental C85, 85 hp (63 kW)
Propeller: 2-bladed McCauley aluminium, fixed pitch
Wingspan: 17 ft 0 in (5.18 m) upper and lower
Wing area: 73 sq ft (6.8 m2)
Aspect ratio: about 7 on upper wing, 6 on lower
Airfoil: NACA 4412 modified
Length: 17 ft 0 in (5.18 m)
Height: 5 ft 6 in (1.68 m)
Empty weight: 500 lb (227 kg) weights estimated
Gross weight: 800 lb (363 kg)
Fuel capacity: 12 US gal (10.0 imp gal; 45 l)
Maximum speed est: 130 mph (210 km/h, 110 kn)
Cruise speed est: 110 mph (180 km/h, 96 kn)
Rate of climb est: 2,000 ft/min (10 m/s)
Crew: One
All Aero 