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Germany's Junkers Ju 252 transport, Junkers Ju 352 "Herkules" transport

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Junkers Ju 252 transport:
Germany's Junkers Ju 252 transport

Design

Junkers Ju 252

The Junkers Ju 252 was designed in 1939 intending it would be a replacement for the Junkers Ju 52.1

It was similar with the three motors, but the rest was a new design.1 The Ju 252 was larger, faster, and could carry a larger load.1 It was constructed from metal but did not have the corrugated skin like the Ju 52.1

The Ju 252 had a ventral loading hatch.1

Junkers Ju 352

The Junkers Ju 352 Herkules was made from wood and steel tube construction to save on strategic materials.1,2 The Ju 352 was covered in fabric.1

The BMW Bramo 323 engines were selected as they had a lower production priority.1 The BMWs would have 1,200 HP at takeoff with water-methanol boost.1

Prototype

In September 1939 there were four Ju 252 prototypes under construction.1

The Ju 352V1 prototype first flew in October 1943 / October 1, 19432.1

Production

There was an initial order for 25 Ju 252A-1s placed.1 Only eleven of these were built as it was felt the Ju 252 would make demands on strategic materials.1

  • Junkers Ju 252 Prototypes: 41
  • Junkers Ju 252: 111
  • Junkers Ju 352 Prototypes: 21
  • Junkers Ju 352A-0: 101,2
  • Junkers Ju 352A-1: 322, 331
  • Manufacturer: Junkers Flugzeug und Motorenwerke A.G.2

Usage

Germany was the only user of the Ju 252 and Ju 352.1

The Ju 252s were used on special duties, such as agent drops, and cargo transporter.1

The Ju 352 entered service in 1944 and was also used for special duties and also glider towing, paratroop dropping, and transporting.1 There were also missions to carry spies and agents behind enemy lines.2

Specifications

  Junkers Ju 2521
Type Transport1
Crew  
Passengers  
Cargo  
Engine (Type) 3: Junkers Jumo 211F1
Cylinders Inverted V 121
Cooling  
HP 1,410 each1
Propeller blades 3 each1
Dimensions  
Span  
Length  
Height  
Wing area  
Weight  
Empty 28,880 lb1
13,100 kg1
Loaded 52,911 lb1
24,000 kg1
Performance  
Speed  
Cruising speed  
Climb  
Service ceiling  
Range  
Maximum range  
Armament  
  Junkers Ju 3521
Type Transport1
Crew  
Passengers  
Cargo  
Engine (Type) 3: BMW Bramo 323R-21
Cylinders Radial 91
Cooling  
HP 1,200 each1
Propeller blades 3 each1
Dimensions  
Span  
Length  
Height  
Wing area  
Weight  
Empty  
Loaded  
Performance  
Speed  
Cruising speed  
Climb  
Service ceiling  
Range  
Maximum range  
Armament  
  Junkers Ju 352A1
Type Transport1
Crew 4 - 51
Passengers 321
OR  
Cargo 9,480 lb1
4,300 kg1
Engine (Type)  
Cylinders  
Cooling  
HP  
Propeller blades  
Dimensions  
Span 112' 3"1
34.21 m1
Length 79' 5"1
24.2 m1
Height 21' 8"1
6.6 m1
Wing area  
Weight  
Empty 27,558 lb1
12,500 kg1
Loaded 43,034 lb1
19,520 kg1
Performance  
Speed @ 7,875' /
2,400 m
205 mph1
330 kph1
Cruising speed 152 mph1
245 kph1
Climb to 3,280' /
1,000 m
3.2 minutes1
Service ceiling 19,685'1
6,000 m1
Range 1,120 miles1
1,800 km1
Maximum range 1,852 miles1
2,980 km1
Armament  
Dorsal turret 1: 20 mm1
Lateral 2: 13 mm MG1
  Junkers Ju 352A-12
Type Transport2
Crew 3 - 42
Passengers  
Cargo  
Engine (Type) 3: BMW 323 R-22
Cylinders Radial 92
Cooling Air2
HP 1,000 each2
Propeller blades  
Dimensions  
Span 112' 2"2
Length 80' 8"2
Height 18' 10"2
Wing area  
Weight  
Empty  
Loaded 43,000 lb2
Performance  
Speed @ 16,565' 230 mph2
Cruising speed  
Climb  
Service ceiling 19,685'2
Range  
Maximum range 1,860 miles2
Armament 1: 20 mm2

Sources:

  1. Aircraft of WWII, Stewart Wilson, 1998
  2. World War II Airplanes Volume 1, Enzo Angelucci, Paolo Matricardi, 1976
20th Century American Military History Crucial Site