Alexeyev 150
| 150 | |
|---|---|
|
|
| Type: | Bomb plane |
| Design country: | |
| Manufacturer: | |
| First flight: |
5th October 1952 |
| Number of pieces: |
1 prototype |
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As Alexeyev 150 (also Samoljot (aircraft) 150 or just 150 ) which is twin prototype of a front bombing aircraft referred to, the under the direction of Semyon Mikhailovich Alekseev in the Soviet Union was designed and built.
A German team of specialists was deployed, which had been "taken over" by the Soviet Union after the end of the Second World War . Professor Brunolf Baade also worked on the team , who after his return to the GDR incorporated the experience gained with the 150 into the construction of the only passenger aircraft developed and tested there, the 152 . The team carried on the tradition of Junkers project names, which is why the 150 was also referred to as the EF 150 .
development
The initial model was the project presented by Brunolf Baade in October 1948 for a twin-engine swept wing bomber with the designation RB-2 . This should be able to carry a weapon load of 1,500 kilograms 4,500 kilometers at a top speed of 1,100 km / h. The summit height was calculated to be 15,000 meters.
It was planned to introduce Samoljot 150 as a complement to the two Tupolev Tu-14 and Ilyushin Il-28 bombers in the air force. As engine that was first Mikulin AM-3 provided, but the decision was made after thorough calculations for two - it was supposed - powerful Ljulka -AL-3 units, but this later proved to be a mistake. Alexejew later pushed through the installation of the Lyulka AL-5 , presumably because of personal differences with Mikulin and Baade. In December 1949, due to these tensions, he was released from Project 150 and, by order of Stalin, the AM-3 was provided as a drive.
For the first time, the tandem landing gear developed by the Baade team was installed in a Soviet aircraft. It consisted of a bow and a main wheel in the fuselage, at the ends of the wing there were small support wheels attached to struts that were folded back in flight. The American Boeing B-47 developed at the same time has a very similar structural design. The swept wings each had two boundary layer fences .
After numerous ground tests and delays, caused by the relocation of the entire project to the Luchowizy airfield , 200 kilometers away , Samoljot 150 began flight tests with test pilot Jakow I. Wernikow on October 5, 1952. AL-5s were used as drives because the two AM-3s were not available in time. The expectations placed in the project were met. The required top speed of 790 km / h was not only achieved, but also exceeded by 140 km / h.
On May 9, 1953, the machine crash-landed on approach and was badly damaged. Since the Tupolev Tu-16 , which was also equipped with the AM-3 and completed its flight tests in 1952/53, had better performance parameters than the 150, the whole project was finally abandoned. Brunolf Baade returned to the GDR a short time later.
Technical specifications
| Alexeyev 150 | |
|---|---|
| Conception | Twin-engined bomber plane |
| Constructor (s) | Brunolf Baade |
| Construction year | 1951 |
| crew | 4th |
| length | Hull 23.88 m total 26.74 m |
| span | 24.10 m |
| Takeoff mass | 47,000 kg |
| drive | two jet engines Ljulka AL-5 |
| power | 49.5 kN each |
| Top speed | near the ground 850 km / h at 10,000 m altitude 930 km / h |
| Service ceiling | 12,500 m |
| Range | 1,500 km with a full load |
| Armament | six 20 mm MK |
| Bomb load | 6,000 kg |
See also
literature
- Lew P. Berne: Mikulin and the "Baade" bomber . In: Flieger Revue extra . No. 18 . Möller, Berlin 2007.
- Heinz Hartlepp: Memories of Samara - German aviation specialists from Junkers, BMW and Askania in the Soviet Union from 1946 to 1954 . Aviatic, Oberhaching 2005, ISBN 3-925505-83-0 .
Web links
- BAADE 152. Retrieved August 5, 2013 (photos).
- OKB-1 150. Retrieved August 5, 2013 (development history with photos).