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The Ju-287 Junkers and its derivatives

III. Russian derivatives of Junkers 287

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I Design of Junkers 287

II. Tests of Junkers 287

III. Russian derivatives of Junkers 287

V Gallery photographs

 

EF-150

Plan 3 vues de l'EF-131

Dession d'ingéniérie de l'EF-131

EF-132

 

 

 

 

 

 

 

 

Plan 3 vue de l'EF-140 R

 

 

 

 

 

Plan 3 vues de l'EF-150

 

 

 

La famille "287" au grand complet ! (echelle non respectée)

 

Ju-287-V1 will be destroyed during the phase of occupation of the Soviet forces in April 1945. But in Dessau the Soviets continued the construction of V2 and V3, which flew during the summer 1945. German engineer Baade will continue the development of Ju-287 under Soviet supervision.

In Dessau, the EF-131 was ready for its first flight in August 1946. But before the first flight was carried out, the Soviets transferred all work from development and test to Podberesje in Russia in September 1946.

Vue d'artiste de l'EF-131

The first flight was carried out by the German pilot Paul Jugle on May 23, 1947 on the airfield of Stakhanovo in Russia. In June 1948, the Soviets decide to stop the development of the EF-131. A second prototype was already in construction in Russia, but it will be cannibalisé for the construction of the EF-140.

The EF-132 was also under development and a model was built in Dessau. Contrary to initial Ju-287, the EF-132 had a traditional back sweptback wing. The cockpit was similar to that of Ju-288. The six reaction engines were integrated in the wing. This design became typical later for the Russian planes (for example, Mya-4 Bison). But program EF-132 was stopped before the construction of a prototype started. The EF-132 was the last development of Junkers-Dessau.

Vue d'artiste de l'EF-132

The experiment of Junkers and the concept basic of Ju-287 were used in Podberesje for other developments during following years. The EF-140 was based on the EF-131 by equipping prototype EF-131 V1 with two Soviet engines Mikuline AM01. The first flight is carried out on September 30, 1948 and one version of recognition of the EF-140 will be then studied under designation 140-R. Because of serious problems of vibration, the EF140 will be finally abandoned.

EF-140 R

Other work of development in Podberesje is badly known, but the final development of the working group of Junkers with Podberesje was the EF-150 , carried out in May 1951. This plane, very different from Ju-287, had a traditional sweptback wing, an empennage in T, a central landing gear out of tandem with balancines in wing tips and two engines Lyulka AL-5.

EF-150

Two prototypes of the EF-150 were built and tested in flight in 1951/52. Nevertheless, Tupolev You-16 was put in production at the place of the EF-150 what will be the final point of the line of the Junkers Ju-287, the first jet and opposite wing of the history.

EF-150

Ju-287 V1
Ju-287
Ju 287 V3/ef-131
EF-132
Type
Experimental prototype of Bomber
Version of series of Ju-287
Experimental prototype of Bomber
Experimental prototype of Bomber
Wing surface (m2)
?
58.4
59.1
161
Scale (m)
20.10
19.40
19.40
32.4
Length (m)
18.06
18.06
19.7
30.8
Height (m)
4.70
5.40
?
8.4
Empty weight (kg)
~ 12 000
11 990
~12 000
31 300
Mass on takeoff (kg)
~ 18 000
31 230
~20 000
65 000
Engine
4 Junkers Jumo 004 B
4 Heinkel HeS 011-a
6 BMW 003 A1, 6 RD-10 in Russia
6 Junkers Jumo 012 envisaged
Pushed (kgp)
4 X 900
4 X 1300 Kgp
6 X 800
6 X 2500
Speed sea level (km/h)
?
?
?
?
Speed max to 7000 m (km/h)
560
885
865
930
Cruising speed (km/h)
?
800 km/h with 8000 meter
?
850
Altitude of cruising (m)
10 800
14 000
?
10 300
Duration of flight max (hour)
?
5. 42 min
?
2. 40
Armament
None
4000 kg of bombs
?
4 to 5 tons of bombs

 

EF-140
EF-140 R
EF-150
Type
Experimental prototype of Bomber
Experimental prototype of Recognition
Prototype of Bomber
Wing surface (m2)
59.1
59.1
125
Scale (m)
19.4
21.9
24.1
Length (m)
19.8
19.8
26.74
Height (m)
?
?
?
Empty weight (kg)
11 900
?
23 074
Mass on takeoff (kg)
23 000
?
54 000
Engine
2 Mikuline AM01 (or AM-TKRD-01)
2 Klimov VK-1 (derivatives of the RR Nene)
2 Lyulka Al-5
Pushed (kgp)
2 X 3300
2 X 2700
2 X 4600
Speed sea level (km/h)
?
?
850
Speed max (km/h)
904
866
930 to 10 000 meters
Cruising speed (km/h)
?
?
?
Altitude of cruising (m)
?
?
13 000
Armament
4500 kg of various loads
No, equipment of recognition in the bomb bay.
6 tons of bombs and two guns NR-23 in the tail.

 

Sources:

I Soviet X-Plane of Y. Gordon & B Gunston.

II Secret Lufwaffe Projects of D. Herwig & H. Rode.

III Luft' 46.

IV. Junkers Homepage.

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