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BLOHM UND VOSS Bv 138



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Origin: Hamburger Flugzeugbau Gmbh
Type: Reconnaissance Flying Boat, Minesweeper (MS)
Models: A-1, B-1, C-1, MS
Crew: Six
First Flight: July 15, 1937
Service Delivery:
    Bv 138A-1: January 1940
    Bv 138C-1: January 1941
Final Delivery: 1943

Powerplant:
Bv 138A:
  Model: Junkers Jumo 205C
  Type: Inline diesels with 12 opposed pistons in six cylinders
  Number: Three     Horsepower: 650hp

Bv 138B & Bv 138C:
   Model: Junker Jumo 205D
   Type: Inline diesels with 12 opposed pistons in six cylinders
   Number: Three     Horsepower: 880hp
   Bv 138C-1: Center engine equipped with four bladed propeller, Other two engines equipped with three bladed propellers.

Dimensions:
   Wing span: 27m (88 ft. 7 in.)
   Length: 19.85m (65 ft. 1.5 in.)
   Height: 5.9m (19 ft. 4.25 in.)
   Wing Surface Area:
  112m² (1,204.6 sq ft)

Weights:
   Empty: 11,000kg (24,250 lbs.)
   Maximum: 15,480kg (34,100 lbs.)
   Rocket Assisted Take Off (RATO):
       16,480kg (39,600 lbs.)
  Performance:
   Maximum Speed: 275kph (171 mph)
   Cruising Speed: 235kph (146 mph)
   Maximum Range: 4,023km (2,500 mi)
   Initial climb: N/A
   Time to 10,000 ft (3,050m): 24 Minutes
   Time to 18,700 ft (5,700m): N/A
   Service Ceiling: 5,000m (16,400 ft.)

Armament:
Bv 138A:
   One 20mm MG 151 cannon in bow turret
   Two 7.92mm MG 15 machine guns manually aimed in rear hull.

Bv 138B:
   One 20mm MG 151 cannon in bow turrets
   One 20mm MG 151 cannon in stern turret

Bv 138C:
   One 20mm MG 151 cannon in bow turrets
   One 20mm MG 151 cannon in stern turret
   One 13mm MG 131 machine guns manually aimed in rear hull

Bv 138MS:
   None

Payload:
BV 138B:
   Three 110 lb. (50-kg) Bombs under starboard wing root.

BV 138C-1/U1:
   Six 110 lb. (50-kg) Bombs or Four 331 lb. (150kg) Depth charges or other stores under starboard wing root.


Comments
Originally known as Ha 138. Hamburger Flugzeugbau being the aircraft subsidiary of the Blohm und Voss shipyards.

Bv 138MS was a minesweeper variant, converted from Bv 138B-0 pre-production aircraft. All armament was removed and a degaussing loop of dural and field-generating equipment installed.
Sources:
Gunston, Bill & Wood, Tony - Hitler's Luftwaffe, 1977, Salamander Books Ltd., London

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