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Author Topic: Blohm & Voss Ha 139  (Read 5307 times)

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Blohm & Voss Ha 139
« on: October 17, 2014, 08:55:37 AM »

Blohm und Voss Ha-139

The Blohm & Voss Ha 139 was a German all-metal inverted gull wing floatplane. With its four engines it was at the time one of the largest float-equipped seaplanes that had been built. The inboard engines were mounted at the joint between the inboard anhedral and outboard dihedral wing sections, above the pylon-mounted floats.

Further development of the Ha 139 led to the land based version Blohm & Voss BV 142 which had its first flight in October 1938.

Operational History

The aircraft were flown by Deutsche Luft Hansa on transatlantic routes between 1937 and 1939, predominately between Bathurst, The Gambia and Natal, Brazil. Catapult-launched from an aircraft tender they were able to transport 500 kg of mail over a distance of up to 5,000 km.

On the outbreak of World War II, the planes were transferred to Luftwaffe and used for transport, reconnaissance and minesweeping work over the Baltic Sea. They were not particularly suited for military use.


Projekt 15: Catapult launched floatplane mail-carrier design for Deutsche Lufthansa (DLH), became the Ha 139.

Projekt 20: A reconnaissance-bomber derivative of Projekt 15 submitted to the Reichsluftfahrtministerium (RLM) (German air Ministry) but generating little interest.

Ha 139 V1: Named Nordwind — First of two baseline prototypes

Ha 139 V2: Named Nordmeer — Second of two baseline prototypes

Ha 139 V3: Named Nordstern — Third prototype with longer wingspan, increased wing area and modified engine mounts.

Ha 139B: The Ha 139 V3 re-designated when in service with DLH.

Ha 139B/Umbau: After service with DLH, the Ha 139B was modified as the Ha 139B/Umbau with an extended glazed nose accommodating a navigator and a spherical Ikaria mount for a machine-gun. Further machine guns were mounted in the cockpit roof hatch and in lateral mountings on either side of the rear fuselage.

Ha 139B/MS: The Ha 139B/Umbau was later modified into a minesweeping aircraft fitted with a large magnetic sensing loop strung between the nose, floats, wing-tips, and tail unit.

Specifications (Ha 139B/Umbau)

General characteristics

Crew: 4-5
Length: 20.07 m (65 ft 10 in)
Wingspan: 29.5 m (96 ft 9 in)
Height: 4.8 m (15 ft 9 in)
Wing area: 130 m2 (1,400 sq ft)
Empty weight: 10,340 kg (22,796 lb)
Gross weight: 19,000 kg (41,888 lb)
Powerplant: 4 × Junkers Jumo 205C 6-cyl. opposed piston diesel engines, 447 kW (599 hp) each for take-off
Propellers: 3-bladed variable-pitch metal propellers


Maximum speed: 288 km/h (179 mph; 156 kn) at 3,000 m (9,843 ft)
Cruising speed: 238 km/h (148 mph; 129 kn) (maximum) at 2,000 m (6,562 ft)

Economical cruise speed: 200 km/h (124 mph)
Ferry range: 4,600 km (2,858 mi; 2,484 nmi) at 238 km/h (148 mph)

4,950 km (3,076 mi) at 200 km/h (124 mph)
Rate of climb: 2.833 m/s (557.7 ft/min)


Guns: 4 x 7.92 mm (0.312 in) MG 15 machine guns in nose, flight deck roof hatch, and staggered fuselage lateral mountings

If you guys want any more pics just PM me.


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Re: Blohm & Voss Ha 139
« Reply #1 on: October 17, 2014, 09:29:56 AM »

anyone needs more pics.

here a shot of the inner tube of the wing.
as Blohm and Voss did not have massive experience in the airplane building business, they used this tube as the main spar - and also housed the fuel tanks inside that tube.
Quite a anoteable feature, and also the reason why the wing shape did not change much towards the tip -  the tube needed to be simple and not complex, so they kept it the same all the way.
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Re: Blohm & Voss Ha 139
« Reply #2 on: October 17, 2014, 10:02:25 AM »

mate, your requests are all good, but how about dialing it back a notch?
there's no need to post new requests every day.
it's not a race, no competition to see who can post the most requests.
take it easy, is a motto i personally live by. :D
.....taking fun seriously since 1968.....  8)
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