Kobeseiko "Te-Go" Experimental Observation Aircraft

Designed by Professor Miki Tetsuo of the Department of Aeronautics, Faculty of Engineering, Osaka Imperial University, at the request of the Army, as a short take-off and landing aircraft for artillery spotting by the Army Artillery Corps. As it was outside the jurisdiction of the IJAAF, it was not assigned a Ki number. It featured a distinctive high-wing monoplane configuration, equipped with automatic leading-edge slats spanning the entire main wing, trailing-edge Fowler flaps, and ailerons doubling as flaps. To achieve a large wing angle of attack during take-off and landing runs, the main landing gear was raised high. Large windows were fitted to the fuselage to provide a wide field of view. 
The wings were wooden with fabric covering and could be folded rearward. The fuselage featured a mixed wooden and metal frame covered in fabric, with only the nose section clad in light metal. Priority was given to short take-off and landing performance for use from hastily constructed frontline airfields, riverbanks, open spaces, and roads. Seating was arranged in a single file.
The engine was the same type as that fitted to the Kayaba "Ka-go" Type 1 observation autogyro, the Kobe Steel Argus As-10 24OH. For the "Te-go" observation aircraft, Kobe Steel also manufactured the airframe, with the prototype completed in 1942. However, it had a landing gear failure during test flights. Consequently, the Army adopted the "Ka-go" observation autogyro for this role, and development of the "Te-go" was cancelled.
Plans also existed for a three-seat Army artillery observation aircraft (abbreviated RGK), but only the design was completed and no actual aircraft were built. It would be a large observation aircraft equipped with the Nakajima ‘Kotobuki’ Type 3 5501P engine, with a wingspan of 21.00m, length 12.80m, and height 2.70m.

General characteristics
Single-engine, high-wing monoplane, land-based aircraft
Crew: 2
Length: 9.50m
Height: 3.00m
Wingspan: 13.00m
Wing area: 20sq m
Maximum take-off weight: 1,130 kg
Wing loading: 56kg/sq m
Power loading: 4.52kg/hp
Powerplant: 1 X Kobe Steel Argus As-10 air-cooled inverted V-8, nominal output 240 hp, take-off output 250 hp.
Propeller: Wooden fixed-pitch, 2-bladed, diameter 2.75 m

Performance
Maximum speed: 180 km/h
Endurance: 6 hours
Service ceiling: 8,2 80m (27,165 ft)
Armament: One 7.7 mm flexible machine gun (mounted above rear seat, retractable, with two spare magazines)

Illustration from "Nihon Rikugun Shisakuki Taikan" (All the Experimental Aircraft in Japanese Army), by Akimoto Minoru, Kantosha 2008