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Boeing L-15 Scout

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Title: Boeing L-15 Scout  
Author: World Heritage Encyclopedia
Language: English
Subject: Ryan S-C, Aeronca L-16, Stinson Voyager, Monocoupe 90, Boeing Model 42
Collection: Boeing Aircraft, Single-Engine Aircraft, United States Military Reconnaissance Aircraft 1940–1949
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Boeing L-15 Scout

L-15 Scout
YL-15 (foreground) of US Fish & Wildlife Service
Role Liaison aircraft
Manufacturer Boeing
First flight 13 July 1947
Number built 12

The Boeing L-15 Scout or YL-15 was a small, piston engine liaison aircraft built by Boeing in very small numbers after World War II. It was a short take-off and landing (STOL) aircraft powered by a 125 hp Lycoming engine. The L-15 was an attempt by Boeing to expand its product line as World War II drew to a close and Boeing's production of combat aircraft declined. Boeing decided against marketing the L-15 as a general aviation aircraft, and the twelve that were produced went to the United States Army for testing then were transferred to the U.S. Fish and Wildlife Service in Alaska for various duties.

Contents

  • Design 1
  • Operators 2
  • Specifications (XL-15) 3
  • References 4
    • Notes 4.1
    • Bibliography 4.2
  • External links 5

Design

The scout was a conventional geared aircraft that was also tested on ski and float gear. The unique fuselage tapered sharply behind the pilot similar to a helicopter fuselage, with a high mounted boom supporting the tail surfaces. The original design included a single vertical stabilizer, but two small downward mounted stabilizers were used on production models. Spoiler-ailerons were used for roll control, and full length flaps were mounted on the trailing edge of the wings. The rear fuselage was all-window, and the tandem co-pilot could swivel the chair rearward.

Although its cruise speed was only 101 mph, the aircraft was rated to be towed by another aircraft at speeds up to 160 mph.[1]

Operators

 United States

Specifications (XL-15)

Data from Boeing Aircraft since 1916 [2]

General characteristics
  • Crew: Two (pilot and observer)
  • Length: 25 ft 3 in (7.70 m)
  • Wingspan: 40 ft 0 in (12.20 m)
  • Height: 8 ft 8½ in (2.65 m)
  • Wing area: 269 ft² (25.0 m²)
  • Empty weight: 1,509 lb (686 kg)
  • Loaded weight: 2,050 lb (932 kg)
  • Powerplant: 1 × Lycoming O-290-7 four cylinder air cooled horizontally opposed engine, 125 hp (93 kW)

Performance

References

Notes

  1. ^
  2. ^ Bowers 1989, p.374-375.

Bibliography

  • Bowers, Peter M. Boeing Aircraft since 1916. London: Putnam, Third edition 1989. ISBN 0-85177-804-6.

External links

  • , March 1947, Popular Science"Grasshopper Eye's Widen" article with explanation of unique features of L-15A
  • , March 1947, Popular Mechanics"Eye For Ground Forces Fly As Low As 50 mph" good photo of rear observers unique position
  • , February 1948, Popular Science"XL-15 Folds Up For A Tow" middle of page
  • , November 20th 1947, page 573Flight bottom of page shows XL-15A on floats, with specification when operated as float plane
  • , October 1947, Popular Science"New Eyes For The Army Ground Forces" US Army recruiting ad featuring L-15A
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