TheJunkers S 36 was a twin-enginemail plane developed inGermany in the late 1920s that was further developed in Sweden as a multi-role military aircraft, albeit unsuccessfully, under the designationK 37. The design itself was a low-wingcantilevermonoplane of largely conventional design, featuring twin tails and fixed,tailwheel undercarriage. Construction was metal throughout and skinned, in typical Junkers fashion, with corrugatedduralumin. The engines were mounted in nacelles on the wings, and the crew was accommodated in three opencockpits, including one in the very nose of the aircraft.

S 36 and K 37
Role	Mail plane, later multi-role military aircraft
National origin	Germany
Manufacturer	Junkers
Designer	Ernst Zindel
First flight	5 September 1927
Number built	2

This design lent itself readily to military applications, and the open cockpit in the nose offered an ideal position for a crewman to act as an observer,bombardier and/or nose gunner. TheS 36prototype was flown to Sweden, where it was militarised by Junkers subsidiaryAB Flygindustri atLimhamn. Proposed as afighter orreconnaissance-bomber, the K 37 could operate at altitudes unattainable by other fighters of the day, rendering it effectively immune from interception. The type was demonstrated in civil form at the "Aerial Garden Party" atHeston Aerodrome in July 1929, and in military form as a model at the Olympia Aero Show, complete with a dummy observer with swivellingmachine gun to demonstrate the field of fire.

No sales resulted, and the development of new and more capable fighter aircraft negated the advantages offered by the type. However, the

Japanese Army Air Force was sufficiently interested in the type forMitsubishi to purchase manufacturing rights in 1931, and AB Flygindustri also provided one or two pattern aircraft. A K 37 was operated with success during theInvasion of Manchuria and led the Army to orderheavy andlight bombers from Mitsubishi based on the design. These were developed as theKi-1 andKi-2 respectively, the former sharing little with the Junkers design other than its general configuration, but the latter featuring wings essentially the same as the K 37 fitted with extraailerons.

General characteristics

• Crew: Three
• Length: 37 ft 5 in (11.40 m)
• Wingspan: 65 ft 9 in (20.05 m)
• Height: 15 ft 1 in (4.60 m)
• Wing area: 583 sq ft (54.2 m²)
• Empty weight: 5,720 lb (2,600 kg)
• Gross weight: 9,900 lb (4,500 kg)
• Powerplant: 2 ×Siemens-builtBristol Jupiter VI , 590 hp (440 kW) each

Performance

• Maximum speed: 140 mph (224 km/h, 120 kn)
• Range: 530 mi (850 km, 460 nmi)
• Service ceiling: 23,000 ft (7,000 m)

Armament

• 3 × 7.7 mm (.303 in) machine guns
• 500 kg (1,102 lb) of bombs

• Passingham, Malcolm (February 1999). "Les bombardiers de l'Armée japonaise (1920–1935)" [Japanese Army Bombers (1920–1935)].Avions: Toute l'aéronautique et son histoire (in French) (71):32–38.ISSN 1243-8650.
• Taylor, Michael J. H. (1989).Jane's Encyclopedia of Aviation. London: Studio Editions. p. 546.ISBN 0-7106-0710-5.
• Hugo Junkers homepage
• Уголок неба
• "Aerial Garden Party at Heston".Flight: 800. 25 July 1929. Retrieved2008-08-20.
• "Miscellaneous and Foreign Exhibits at Olympia".Flight: 861. 8 August 1929. Retrieved2008-08-20.

• Zuerl, Walter (1941).Deutsche Flugzeug Konstrukteure. München, Germany: Curt Pechstein Verlag.