The Heinkel HD 39 was a special-purpose cargo aircraft developed in Germany in the 1920s to distribute the Berlin newspaper B.Z.. It was a conventional single-bay biplane with staggered wings of equal span, and a fuselage that nearly filled the interplane gap. The pilot sat in an open cockpit, and the undercarriage was of fixed, tailskid type with divided main units. The sole example of the type was built after Ernst Heinkel found out, by chance, that B.Z. required such an aircraft and had ordered two machines from Albatros. Heinkel convinced publisher Ullstein-Verlag to purchase a third aircraft from his firm.
The design was based on the HD 27mail plane, and had a specially-designed payload bay to carry newspapers in 50 kg (110 lb) bundles. 10 separate compartments in the bay could be individually opened in flight in order to air-drop newspapers in places where the HD 39 could not land.
The HD 39 entered service alongside two Albatros L 72s in April 1926 and remained in Service until 1931, when distribution of B.Z. by air was taken over by Deutsche Luft Hansa.
Wikimedia Commons has media related to Heinkel HD 39.
^Grey, C.G., ed. (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. pp. 138c–139c.
Further readingedit
Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 499.
External linksedit
"Heinkel's Newspaper Aircraft (HD 39 and HD 40)". EADS. Archived from the original on 2007-06-25. Retrieved 2008-04-23.
January 01, 1970
heinkel, special, purpose, cargo, aircraft, developed, germany, 1920s, distribute, berlin, newspaper, conventional, single, biplane, with, staggered, wings, equal, span, fuselage, that, nearly, filled, interplane, pilot, open, cockpit, undercarriage, fixed, ta. The Heinkel HD 39 was a special purpose cargo aircraft developed in Germany in the 1920s to distribute the Berlin newspaper B Z It was a conventional single bay biplane with staggered wings of equal span and a fuselage that nearly filled the interplane gap The pilot sat in an open cockpit and the undercarriage was of fixed tailskid type with divided main units The sole example of the type was built after Ernst Heinkel found out by chance that B Z required such an aircraft and had ordered two machines from Albatros Heinkel convinced publisher Ullstein Verlag to purchase a third aircraft from his firm HD 39 Role Newspaper delivery aircraft National origin Germany Manufacturer Heinkel First flight 1926 Primary user Ullstein Verlag Number built 1 The design was based on the HD 27 mail plane and had a specially designed payload bay to carry newspapers in 50 kg 110 lb bundles 10 separate compartments in the bay could be individually opened in flight in order to air drop newspapers in places where the HD 39 could not land The HD 39 entered service alongside two Albatros L 72s in April 1926 and remained in Service until 1931 when distribution of B Z by air was taken over by Deutsche Luft Hansa Contents 1 Specifications 2 References 3 Further reading 4 External linksSpecifications edit nbsp Heinkel HD 39 3 view drawing from Les Ailes July 1 1926 Data from Jane s all the World s Aircraft 1928 1 General characteristicsCrew 2 Capacity 820 kg 1 810 lb in a 2 m3 71 cu ft capacity cargo mail newspaper compartment with air drop capability Length 10 m 32 ft 10 in Upper wingspan 14 8 m 48 ft 7 in Lower wingspan 12 7 m 41 ft 8 in Height 3 7 m 12 ft 2 in Wing area 52 3 m2 563 sq ft Empty weight 1 340 kg 2 954 lb Gross weight 2 160 kg 4 762 lb Powerplant 1 BMW IV 6 cylinder water cooled in line piston engine 170 kW 230 hp Propellers 2 bladed fixed pitch propeller Performance Maximum speed 166 km h 103 mph 90 kn Landing speed 68 5 km h 42 6 mph 37 0 kn Time to altitude 1 000 m 3 300 ft in 6 6 minutes Wing loading 41 1 kg m2 8 4 lb sq ft Power mass 0 0792 kW kg 0 0482 hp lb References edit nbsp Wikimedia Commons has media related to Heinkel HD 39 Grey C G ed 1928 Jane s all the World s Aircraft 1928 London Sampson Low Marston amp company ltd pp 138c 139c Further reading editTaylor Michael J H 1989 Jane s Encyclopedia of Aviation London Studio Editions p 499 External links edit Heinkel s Newspaper Aircraft HD 39 and HD 40 EADS Archived from the original on 2007 06 25 Retrieved 2008 04 23 Retrieved from https en wikipedia org w index php title Heinkel HD 39 amp oldid 1101445251, wikipedia, wiki, book, books, library,
