This single-seater motor glider was originally known as the Ka 12 and was designed by Ing Rudolf Kaiser but, to avoid confusion with the AS-W 12 high performance sailplane which was also built by Schleicher, it was redesignated AS-K 14.
Of conventional wooden construction, it has what is basically a Ka 6E's semimonocoque fuselage with plywood covering married to low-set cantilever wood and fabric wings with 5° dihedral, similar to the Ka 6E's and with the same aerofoil section; the single-spar wings have spoilers in the upper surfaces and plywood-covered ailerons. The pilot sits under a large one-piece blown Plexiglas canopy that hinges sideways to starboard, and the landing gear consists of a manually retracted monowheel on a leg tall enough to give adequate ground clearance for the propeller, plus a tailskid. Powerplant is a 26hp Hirth F10 K19 'flat four' two-stroke engine in a conventional tractor installation driving a two-blade Hoffman feathering propeller; starting is manually. The tail unit is of wood/plywood/fabric construction, with a low-set all-moving tailplane.
The prototype made its first flight on 25 April 1967, and the type took second, third and fourth palces in the first at Burg Feuerstein in the German Motor Glider Competition, which was held in 1970; in the sixth of these competitions, in 1976, the AS-K 14 was still good enough to take second and third places.
Engine: 19 kW/ 26 bhp Hirth F10 K19
Wing span: 14.3 m / 46 ft 11 in
Wing area: 12.68 sq.m / 136.5 sq.ft
Aspect ratio: 16.8
Airfoil: NACA 63-618/ 615
Length: 21 ft 8 in
Height:5 ft 3 in
Empty Weight: 245 kg / 540 lb
Payload: 115 kg / 254 lb
Gross Weight: 360 kg / 794 lb
Wing Load: 28.6 kg/sq.m / 5.82 lb/sq.ft
Max speed:124 mph (in smooth air)
MinSink: 0.75 m/s / 2.46 fps / 1.46 kt at 45 mph
L/DMax: 28 at 81 kph / 44 kt / 51 mph
Take-off run:393 ft
No. Built: 66