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Heinkel HD 24

HD 24
Plüschow's seaplane, the Heinkel HD 24 "Tsingtau"
Role Training seaplane
National origin Germany
Manufacturer Heinkel, Svenska Aero
First flight 1926
Primary users DVS
Number built 35

The Heinkel HD 24 was a training seaplane developed in Germany in the late 1920s. It was a conventional single-bay biplane with equal-span, unstaggered wings. The fuselage was braced to both the upper and lower wings with a number of struts on its sides, in addition to the normal cabane struts. The pilot and instructor sat in tandem, open cockpits, and the undercarriage consisted of twin pontoons, although this could be readily exchanged for wheels or skis.

Heinkel entered two HD 24s (alongside two HD.5) in the German Seeflugwettbewerb seaplane competition in 1926.[1] One of the HD.24 was the third placed[2] - only three aircraft completed the course and completed all the tests in the 11 day competition- leading to orders by the DVS (for 23 aircraft) and the Swedish Navy. The latter aircraft were to be built in Sweden by Svenska Aero based on two pattern aircraft provided by Heinkel. Before the Swedish examples could be delivered, the Swedish Air Force had assumed responsibility for Swedish naval aviation, and so took delivery of the six domestically produced machines, designating them Sk 4.

One HD 24 was exported to China, and another was bought by German explorer Gunther Plüschow who named it Tsingtau and took it on an expedition in 1927–28 to Patagonia and Tierra del Fuego. The journey was recorded in his book and documentary film Silberkondor über Feuerland. A full size replica of the Tsingtau D1313 is being assembled for static display as of April 17, 2009, in Puerto Madero, Buenos Aires, Argentina. It is located at about 500 of Alicia Moreau de Justo Avenue.Now this replic is location in the Aeroclub of Ushuaia, Province of Tierra del Fuego, Argentine. A new replic it is building to locate in El Calafate, Province of Santa Cruz, Argentine. It will be locate in The Glaciarium.


  • Variants 1
  • Operators 2
  • Specifications (HD 24a landplane) 3
  • References 4
  • External links 5


  • Sk 4 - HD 24 for Swedish service with Mercedes D.IIIa engine (2 built by Heinkel, 4 by Svenska Aero)



Specifications (HD 24a landplane)

Data from

General characteristics
  • Crew: 2
  • Length: 8.60 m (28 ft 3 in)
  • Wingspan: 14.2 m (46 ft 7 in)
  • Height: 3.84 m (12 ft 7 in)
  • Wing area: 50.1 m2 (539 sq ft)
  • Empty weight: 1,300 kg (2,866 lb)
  • Gross weight: 2,150 kg (4,740 lb)
  • Powerplant: 1 × BMW IV 6-cyl. water-cooled in-line piston engine, 235 kW (315 hp)


  • Maximum speed: 180 km/h (112 mph; 97 kn)
  • Range: 600 km (373 mi; 324 nmi)
  • Service ceiling: 4,500 m (14,764 ft)
  • Rate of climb: 4.3 m/s (850 ft/min)


  1. ^ "German Seaplane Competition" Flight 22 July 1926 p448
  2. ^ "Heinkel H.E.5 With Napier 'Lion' Gains First Prize" Flight August 5, 1926

External links

  • Heinkels at Warnemunde - image includes HD.24
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