Lavochkin La-152
| Izdeliye 152 | |
|---|---|
 |
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| Izdeliye 152 | |
| Role | Jet fighter prototype |
| National origin | Soviet Union |
| Manufacturer | Lavochkin |
| Designer | Semyon Alekseyevich Lavochkin |
| First flight | 5 December 1946 |
| Number built | 4 |
| Developed from | Lavochkin La-150 |
| Developed into | Lavochkin La-160 |
The Lavochkin La-152, (USAF reporting name - Type 4), and its variants, was a jet fighter prototype designed and manufactured by the Lavochkin Design Bureau (OKB) shortly after the end of World War II. Derived from the Lavochkin La-150, the 152 used several different engines, but the program was canceled as other fighters with more powerful engines and swept wings showed more promise.
Following the limited success of the 150, drastic changes were introduced to improve performance and ease of maintenance. The RD-10 engine, rated at 8.8 kN (2,000 lbf) of thrust, was moved to the front of the nose and its cowling formed the bottom of the forward fuselage. This position minimized thrust losses due to the length of the intake duct and allowed the engine to be changed much more easily than its predecessor. The cockpit was widened and moved to a position over the mid-set wings, even with the engine's exhaust nozzle. The pilot's seat back was armored and he was protected by an armor plate to his front and a bulletproof windscreen. Three fuel tanks were positioned ahead of the cockpit and one behind it with a total capacity of 620 kilograms (1,370 lb) of fuel. The removable, mid-mounted wings used several different laminar flow airfoils over their span. Each wing had a single spar, slotted flaps and ailerons. The tricycle undercarriage retracted into the fuselage, which meant that the aircraft had a very narrow ground track. The aircraft was armed with three 23-millimeter (0.91 in) Nudelman-Suranov NS-23 , two on the starboard side of the aircraft's nose and the other on the port side. Each gun had 50 rounds of ammunition.
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