
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
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
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
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
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
| 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 |
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