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PT-LM-4
St. Louis PT-LM-4 at NACA Langley in 1940.jpg
PT-LM-4
Role Primary trainer
National origin United States
Manufacturer St. Louis Aircraft Corporation
First flight 1940

The St. Louis PT-LM-4 was a primary trainer design for use in the Civilian Pilot Training Program of World War II.

DesignEdit

The PT-LM-4 was a low-wing, open cockpit, tandem seat, trainer with conventional landing gear, powered by a 180 hp (134 kW) Ranger 6-440C-3 engine. The fuselage was constructed of welded steel tubing with aluminum skins. The wings used aluminum construction with aircraft fabric covering. Fairchild won the training contract, with St. Louis Aircraft Company building licensed versions of the PT-19 instead.[1]

Specifications (PT-LM-4)Edit

Data from Skyways

General characteristics
  • Crew: 2
  • Length: 24 ft 9 in (7.54 m)
  • Wingspan: 30 ft (9.1 m)
  • Height: 7 ft 10 in (2.39 m)
  • Wing area: 157 sq ft (14.6 m2)
  • Gross weight: 2,012 lb (913 kg)
  • Powerplant: 1 × Ranger 6-440C-3 inline piston engine, 180 hp (130 kW)

Performance

  • Maximum speed: 119 kn; 220 km/h (137 mph)
  • Cruise speed: 109 kn; 201 km/h (125 mph)
  • Service ceiling: 18,000 ft (5,500 m)
  • Rate of climb: 1,000 ft/min (5.1 m/s)

See alsoEdit

ReferencesEdit

  1. "The St. Louis Aircraft Corporation". October 1995. 

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