Blohm & Voss Ha 140

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Ha 140
Blohm & Voss Ha 140 (15083353609).jpg
An Ha 140 afloat
Role Torpedo bomber
Manufacturer Blohm & Voss (Hamburger Flugzeugbau)
Designer Richard Vogt
First flight 30 September 1937
Produced 1937-38
Number built 3

The Blohm & Voss Ha 140 was a German multi-purpose seaplane first flown in 1937. It was intended for use as a torpedo bomber or long-range reconnaissance aircraft, but did not enter production.

Design and development[edit]

The Ha 140 was developed to meet a requirement for a twin-engine floatplane reconnaissance/torpedo bomber.

The Ha 140 had an all-metal structure of conventional cantilever monoplane layout, with twin floats on pylons beneath its twin wing-mounted engines. The high-mounted wing had a straight centre section and slight dihedral on the outer sections.

The crew consisted of a pilot and radio operator, with a gunner in a revolving turret in the nose or in a second gun position to the rear. The torpedo or bomb load was accommodated in an internal bomb bay.

Three prototypes were built and the design beat the competing Heinkel He 115. However, by then B&V did not have enough spare manufacturing capacity for series production and declined the order, which went to Heinkel instead.[1]

In 1940 the third prototype was modified to test the tail design and variable-incidence wing mechanism used on the BV 144 transport.[2]

Specifications (Ha 140 V2)[edit]

Blohm und voss ha 140 sketch.jpg

Data from Aircraft of the Third Reich[3]

General characteristics

  • Crew: 3
  • Length: 16.75 m (54 ft 11 in)
  • Wingspan: 22 m (72 ft 2 in)
  • Height: 3.05 m (10 ft 0 in)
  • Wing area: 92 m2 (990 sq ft)
  • Empty weight: 6,300 kg (13,889 lb)
  • Gross weight: 8,500 kg (18,739 lb)
  • Max takeoff weight: 9,230 kg (20,349 lb)
  • Fuel capacity: 2,365 l (520 imp gal)
  • Powerplant: 2 × BMW 132K 9-cyl. air-cooled radial piston engines, 597 kW (801 hp) each for take-off
    619 kW (830 hp) at 1,000 m (3,281 ft)
  • Propellers: 3-bladed variable-pitch propellers

Performance

  • Maximum speed: 320 km/h (199 mph; 173 kn) at sea level
    333 km/h (207 mph) at 3,000 m (9,843 ft)
  • Cruise speed: 295 km/h (183 mph; 159 kn) at 85% power at sea level
  • Range: 1,150 km (715 mi; 621 nmi) with 1,390 l (306 imp gal) of fuel
  • Ferry range: 2,000 km (1,243 mi; 1,080 nmi) with 2,365 l (520 imp gal) of fuel
  • Service ceiling: 5,000 m (16,000 ft)
  • Time to altitude: 3,000 m (9,843 ft) in 11 minutes 30 seconds
    5,000 m (16,404 ft) in 39 minutes

Armament

  • Guns: 1× 7.92 mm (0.312 in) MG 15 machine gun in nose, 1× MG 15 machine gun at dorsal hatch
  • Bombs: 1× 952 kg (2,099 lb) torpedo or 4× 250 kg (551 lb) bombs

See also[edit]

Related lists

References[edit]

Notes[edit]

  1. ^ Hans Amtmann; "Blohm & Voss Remembered", Aeroplane Monthly, February 1988, pp.25-26.
  2. ^ Green (1979), p.80.
  3. ^ Green (2010)

Bibliography[edit]

  • Green, William. Warplanes of the Third Reich. London: Macdonald and Jane's Publishers Ltd., 4th impression 1979, p. 70-71. ISBN 0-356-02382-6.
  • Schneider, H. Flugzeug-Typenbuch. Herm. Beyer Verlag, Leipzig, 1940
  • Green, William (2010). Aircraft of the Third Reich (1st ed.). London: Aerospace Publishing Limited. pp. 133–135. ISBN 978 1 900732 06 2.

External links[edit]