Heinkel HD 40

HD 40
Role Newspaper delivery aircraft
National origin Germany
Manufacturer Heinkel
First flight 1927
Primary user Ullstein-Verlag
Number built 1

The Heinkel HD 40 was a special-purpose cargo aircraft developed in Germany in the 1920s to distribute the Berlin newspaper B.Z.. The success of Heinkel's previous design for the publisher, the HD 39, led to the order of a similar aircraft with greater capacity, and Heinkel responded with a machine of similar layout, but considerably enlarged. Like the HD 39, it was a conventional single-bay biplane with staggered wings of unequal 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 wings were of wooden construction, while the fuselage was built from welded steel tube skinned in plywood.

In addition to its newspaper-carrying cargo bay, the HD 40 was fitted with another compartment that could be quickly transformed between carrying extra cargo and carrying up to eight reporters or passengers. After only six months' service, the aircraft was destroyed in a crash following the failure of its engine.


General characteristics

  • Crew: Two
  • Length: 11.90 m (39 ft 1 in)
  • Wingspan: 17.60 m (57 ft 9 in)
  • Wing area: 75.4 m2 (812 ft2)
  • Empty weight: 2,107 kg (4,635 lb)
  • Gross weight: 3,707 kg (8,157 lb)
  • Powerplant: 1 √ó BMW VI, 447 kW (600 hp)


  • Maximum speed: 180 km/h (112 mph)
  • Rate of climb: 2.1 m/s (410 ft/min)


This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.