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Lavochkin La-7

Single-Seat, Single-Engine Monoplane Fighter Aircraft

Lavochkin La-7

Single-Seat, Single-Engine Monoplane Fighter Aircraft

OVERVIEW
SPECIFICATIONS
ARMAMENT
VARIANTS
HISTORY
MEDIA
OVERVIEW



The Lavochkin La-7 prop-powered fighter appeared as an improved La-5 in the later years of World War 2.
National Flag Graphic
ORIGIN: Soviet Union
YEAR: 1944
STATUS: Retired, Out-of-Service
MANUFACTURER(S): Lavochkin - Soviet Union
PRODUCTION: 5,753
OPERATORS: Czechoslovakia; Soviet Union
SPECIFICATIONS



Unless otherwise noted the presented statistics below pertain to the Lavochkin La-7 model. Common measurements, and their respective conversions, are shown when possible.
CREW: 1
LENGTH: 28.22 feet (8.6 meters)
WIDTH: 32.15 feet (9.8 meters)
HEIGHT: 8.33 feet (2.54 meters)
WEIGHT (EMPTY): 5,512 pounds (2,500 kilograms)
WEIGHT (MTOW): 7,385 pounds (3,350 kilograms)
ENGINE: 1 x Shvetsov ASh-82FN 14-cylinder air-cooled radial piston engine developing 1,650 horsepower.
SPEED (MAX): 411 miles-per-hour (661 kilometers-per-hour; 357 knots)
RANGE: 413 miles (665 kilometers; 359 nautical miles)
CEILING: 34,285 feet (10,450 meters; 6.49 miles)
RATE-OF-CLIMB: 3,095 feet-per-minute (943 meters-per-minute)




ARMAMENT



STANDARD:
2 x 20mm ShVAK cannons OR 3 x 20mm Berezin B-20 cannons.

OPTIONAL:
Up to 440lbs of external ordnance including rockets and conventional drop bombs.
VARIANTS



Series Model Variants
• La-7 - Base Series Designation; definitive production form; improved La-5.
• La-7UTI - Two-seat trainer; 584 exampes
• La-7TK - Turbosupercharger testbed; single example.
• La-7R - Rocket engine testbed; single example.
• La-7PVRD - Ramjet engine testbed; single example.
• La-7/M-71 - M-71 engine testbed; single example.


HISTORY



Detailing the development and operational history of the Lavochkin La-7 Single-Seat, Single-Engine Monoplane Fighter Aircraft.  Entry last updated on 8/8/2018. Authored by Staff Writer. Content ©www.MilitaryFactory.com.
The Lavochkin La-7 was an improved variant of the preceding La-5 form. It incorporated a new Shvetsov engine, uprated to increased the mount's maximum speed though, on the whole, it remained largely the same aircraft with a new designation. Other subtle changes were incorporated based on combat actions with the La-7 and first flight of a modified prototype was in February of 1944. Service entry then followed rather quickly in September of 1944. The La-7 led a relatively short operational service life though, being retired during 1950 - the jet age now taking hold. Production of La-7 fighters numbered 5,753 units.

As completed, the La-7 sported similar lines to the original La-5. The cockpit was heavily framed and situated at amidships. The mainplanes were set under and ahead of the cockpit floor. The engine was shrouded over in a rounded cowling with a large spinner capping the three-bladed propeller unit. The tail was tapered and formed the curved vertical fin which mounted mid-set tailplanes on either side. The fuselage spine was only slightly raised to degrade vision to the rear but required for the internal volume it allowed engineers. The undercarriage remained a tail-dragger arrangement with two main legs and a tailwheel - all retractable.

Power was through a single Shvetsov ASh-82FN 14-cylinder air-cooled radial piston engine of 1,650 horsepower. This drove a three-bladed VISh-105V-4 series propeller blade assembly at front. Maximum speed reached 411 miles per hour of late-war models and ranges out to 415 miles. Service ceiling was 34,300 feet and rate-of-climb a strong 3,095 feet-per-minute.

Standard armament began as 2 x 20mm ShVAK cannons with 200 rounds afforded each gun. This could be substituted with 3 x 20mm Berezin B-20 series cannons with 100 rounds per gun. As with the La-5 before it, the La-7 retained performance qualities in the low-to-medium altitude range which meant it a stable platform for the fighter-bomber role as well as a fighter. For this role, the La-7 could also be outfitted with air-to-surface rockets and up to 440lbs of conventional drop ordnance.

Beyond the Soviet Air Force, the La-7 was only utilized by the Czechoslovakian Air Force.

The only definitive production variant became the La-7UTI which served as a trainer model. This incorporated a second seat for the instructor at the expense of internal volume. 584 of the type were produced into 1947. Other one-off variants included the La-7TK used in testing a turbosupercharger development and the La-7R to test a rocket motor propulsion system. The La-7PVRD was similar in scope and used in testing of a pair of ramjet installations under the wings. Another one-off model became the La-7/M-71 which fitted a Shvetsov M-71 engine during 1944.




MEDIA









Our Data Modules allow for quick visual reference when comparing a single entry against contemporary designs. Areas covered include general ratings, speed assessments, and relative ranges based on distances between major cities.

Image of collection of graph types

Relative Maximum Speed Rating
Hi: 500mph
Lo: 250mph
    This entry's maximum listed speed (411mph).

    Graph average of 375 miles-per-hour.
City-to-City Ranges
NYC
 
  LDN
LDN
 
  PAR
PAR
 
  BER
BER
 
  MSK
MSK
 
  TKY
TKY
 
  SYD
SYD
 
  LAX
LAX
 
  NYC
Graph showcases the Lavochkin La-7's operational range (on internal fuel) when compared to distances between major cities.
Aviation Era
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Useful in showcasing the era cross-over of particular aircraft/aerospace designs.
Unit Production Comparison
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units
5753
5753

  * Commercial Market High belongs to Cessna 172.

  ** Military Market High belongs to Ilyushin Il-2.


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Supported Roles
A2A
Interception
UAV
Ground Attack
CAS
Training
ASW
Anti-Ship
AEW
MEDEVAC
EW
Maritime/Navy
SAR
Aerial Tanker
Utility/Transport
VIP
Passenger
Business
Recon
SPECOPS
X-Plane/Development
A2A=Air-to-Air; UAV=Unmanned; CAS=Close Support; ASW=Anti-Submarine; AEW=Airborne Early Warning; MEDEVAC=Medical Evac; EW=Electronic Warfare; SAR=Search-Rescue
Supported Arsenal
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Graphical image of aircraft aerial rockets
Graphical image of an aircraft conventional drop bomb munition
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