Specifications
Year: 1946
Status: Retired, Out-of-Service
Manufacturer(s): Lavochkin OKB - Soviet Union
Production: 4
Capabilities: Fighter; X-Plane;
Status: Retired, Out-of-Service
Manufacturer(s): Lavochkin OKB - Soviet Union
Production: 4
Capabilities: Fighter; X-Plane;
Crew: 1
Length: 29.92 ft (9.12 m)
Width: 27.95 ft (8.52 m)
Weight (Empty): 5,291 lb (2,400 kg)
Weight (MTOW): 7,760 lb (3,520 kg)
Length: 29.92 ft (9.12 m)
Width: 27.95 ft (8.52 m)
Weight (Empty): 5,291 lb (2,400 kg)
Weight (MTOW): 7,760 lb (3,520 kg)
Power: 1 x RD-10 (Junkers Jumo 004B) turbojet engine with afterburner developing 2,000 lb thrust.
Speed: 562 mph (905 kph; 489 kts)
Ceiling: 35,105 feet (10,700 m; 6.65 miles)
Range: 423 miles (680 km; 367 nm)
Rate-of-Climb: 4,650 ft/min (1,417 m/min)
Ceiling: 35,105 feet (10,700 m; 6.65 miles)
Range: 423 miles (680 km; 367 nm)
Rate-of-Climb: 4,650 ft/min (1,417 m/min)
Operators: Soviet Union
The La-150 was given a "pod-and-boom" configuration popular with many early Soviet jet fighters of the period. A nose-mounted intake aspirated the single engine installation with and wing mainplanes were shoulder-mounted along the fuselage. A conventional, single-finned tail unit was used and a retractable three-legged wheeled undercarriage was fitted. The pilot sat at the extreme front of the aircraft under a largely unobstructed canopy.
Conversely, the La-152 was given a similar, though all-new thin wing planform and these appendages were mid-mounted along a deeper fuselage. The single jet engine still aspirated through a nose-mounted intake and exhausted under the fuselage and a single-finned tail arrangement was still in play. The aircraft retained a wheeled, three-point undercarriage that was retractable. The cockpit now resided at midships with more glazing used on the canopy, the cockpit's placement forced by the forward-mounted engine. The relocation of the engine in the nose was brought about to avoid "duct loss" encountered through the La-150's arrangement which sported a rear-mounted engine. To maintain the proper Center of Gravity (CoG), the cockpit was forced aft in the La-152. As a fighter development, the new aircraft carried an all-cannon armament comprised of 3 x 23mm Nudelman-Suranov NS-23 series cannons and all mounted in the nose.
La-152 took to the air for the first time on December 5th, 1946. The design netted itself a maximum speed of 520 miles per hour during its time aloft but was eventually lost in a crash on its eighth flight when attempting to land.
For the program, four total aircraft emerged as the La-152, La-154, La-156 and La-174TK which, save for slight engine differences, were largely faithful to one another in terms of design. The Lyulka TR-1 engine (2,800 pounds thrust) planned for La-154 was never fitted and the prototype never finished while La-156 graduated from an RD-10 to an RD-10F engine which included an afterburning capability. First flight of La-156 came during September of 1947 and this model managed a top speed of 562 miles per hour. The prototype also added lengthened wings, an ejection seat, a new canopy design and cockpit armoring to symbolize a truer fighter form. Maximum speed achieved was 562 miles per hour. This prototype was trialed by the Soviet Air Force but too many required changes doomed it in 1948 from being adopted for serious use.
La-174TK was largely an experimental version of the La-156 when it appeared in 1947. A thinner wing mainplane was fitted and the British Rolls-Royce Derwent V turbojet of 3,500 pounds thrust output was installed. The shift in engine forced the nose cannon armament to be relocated to the ventral section of the nose and the revised design managed a maximum speed of 600 miles per hour.
Like the others in the series, La-174 fell to naught as any further work on the program was halted due to the rise (and promised performance gains) of swept-wing jet fighters being worked on. Straight-winged jets held both performance and technological ceilings that could be largely overcome through swept wing surfaces and this work led to the classic designs of the period such as the Mikoyan-Gurevich MiG-15 and the North American F-86 Sabre of Korean War (1950-1953) fame.
La-152 was recognized by the USAF as "Type 4". This line of aircraft went on to influence the upcoming La-160 project which evolved the product line even further - this form becoming the "Type 6" in USAF nomenclature.
For the program, four total aircraft emerged as the La-152, La-154, La-156 and La-174TK which, save for slight engine differences, were largely faithful to one another in terms of design. The Lyulka TR-1 engine (2,800 pounds thrust) planned for La-154 was never fitted and the prototype never finished while La-156 graduated from an RD-10 to an RD-10F engine which included an afterburning capability. First flight of La-156 came during September of 1947 and this model managed a top speed of 562 miles per hour. The prototype also added lengthened wings, an ejection seat, a new canopy design and cockpit armoring to symbolize a truer fighter form. Maximum speed achieved was 562 miles per hour. This prototype was trialed by the Soviet Air Force but too many required changes doomed it in 1948 from being adopted for serious use.
La-174TK was largely an experimental version of the La-156 when it appeared in 1947. A thinner wing mainplane was fitted and the British Rolls-Royce Derwent V turbojet of 3,500 pounds thrust output was installed. The shift in engine forced the nose cannon armament to be relocated to the ventral section of the nose and the revised design managed a maximum speed of 600 miles per hour.
Like the others in the series, La-174 fell to naught as any further work on the program was halted due to the rise (and promised performance gains) of swept-wing jet fighters being worked on. Straight-winged jets held both performance and technological ceilings that could be largely overcome through swept wing surfaces and this work led to the classic designs of the period such as the Mikoyan-Gurevich MiG-15 and the North American F-86 Sabre of Korean War (1950-1953) fame.
La-152 was recognized by the USAF as "Type 4". This line of aircraft went on to influence the upcoming La-160 project which evolved the product line even further - this form becoming the "Type 6" in USAF nomenclature.
Armament
3 x 23mm Nudelman-Suranov NS-23 cannons in nose
Variants / Models
• La-152
• La-154
• La-156
• La-174TK
