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Boeing L-15 Scout

United States (1947)
Picture of Boeing L-15 Scout Light Liaison Observation Aircraft

The L-15 was a Boeing attempt at a light observation aircraft that was extremely portable, though the design did not lead up to any contracts for the firm.


Detailing the development and operational history of the Boeing L-15 Scout Light Liaison Observation Aircraft.  Entry last updated on 2/13/2018. Authored by Staff Writer. Content ©www.MilitaryFactory.com

The L-15 Scout was a light and small observation liaison aircraft produced in limited numbers by the Boeing Aircraft Company following World War 2 - only twelve of the type were produced with the United States Army becoming its top operator. First flight was achieved on July 13th in 1947 and production spanned from 1947 into 1949.

The L-15 Scout represented a new direction for the Boeing company in the post-war world, a world that no longer needed high production rates and cutting edge designs of piston-engine combat aircraft. The all-metal construction L-15 was designed for operations from short runways (STOL - Short Take-Off and Landing) - wherever terrain might work against other larger aircraft - and specifically intended for the light scout observation role (the aircraft offered great all-around visibility), an attempt on Boeing's part to diversify its offerings in the post-war economy. The L-15 was designed at Boeing's Wichita, Kansas facility.

The L-15 Scout took on a distinct external configuration. The aircraft featured a high mounted monoplane wing assembly to which were affixed "flaperons", wing devices that could double as ailerons and flaps. The two-person crew, made up of the pilot and the observer, sat in a glassed-in nacelle-type fuselage under the main span of the wings. The engine was mounted at the extreme front of the fuselage with the empennage extended out over the rear portion of the aircraft. The tail section was distinctly adorned with twin vertical tail fins. The undercarriage was a conventional "tail-dragger", with two main landing gears and a tail wheel. All were fixed (no retraction of the units) and the tail wheel was positioned under the rearward portion of the fuselage nacelle. The aircrafts size made it suitable for transport in a C-97 aircraft, that is once broken down for the journey. Should the mission call for it, the L-15 could also be fitted with twin floats for water landings.
Power was derived from a single Lycoming O-290-7 series four cylinder air-cooled horizontally-opposed engine delivering 125 horsepower. A top speed of 112 miles per hour was possible along with a service ceiling of 16,400 feet. The aircraft could climb at a rate of 628 feet per minute and performance handling was reportedly quite good.

As fate would have it, the L-15 did not prove a financial success and became Boeing's final single-engine offering for the small-aircraft market. As can be inferred from the text, no firm L-15 Scout contracts were secured.






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Relative Maximum Speed Rating
Hi: 120mph
Lo: 60mph
    This entry's maximum listed speed (112mph).

    Graph average of 90 miles-per-hour.
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Unit Production Comparison
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units
12
12


  * Commercial Market High belongs to Cessna 172.

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


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Origin: United States
Year: 1947
Type: Light Liaison Observation Aircraft
Manufacturer(s): Boeing Wichita - USA
Production: 12
Status: Retired, Out-of-Service
Global Operators:
United States
Historical Commitments / Honors:

Military lapel ribbon for Operation Allied Force
Military lapel ribbon for the Arab-Israeli War
Military lapel ribbon for the Battle of Britain
Military lapel ribbon for the Battle of Midway
Military lapel ribbon for the Berlin Airlift
Military lapel ribbon for the Chaco War
Military lapel ribbon for the Cold War
Military lapel ribbon for the Cuban Missile Crisis
Military lapel ribbon for the Falklands War
Military lapel ribbon for the French-Indochina War
Military lapel ribbon for the Golden Age of Flight
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon for the Indo-Pak Wars
Military lapel ribbon for the Iran-Iraq War
Military lapel ribbon for the Korean War
Military lapel ribbon for the 1982 Lebanon War
Military lapel ribbon for the Malayan Emergency
Military lapel ribbon for the attack on Pearl Harbor
Military lapel ribbon for the Six Day War
Military lapel ribbon for the Soviet-Afghan War
Military lapel ribbon for the Spanish Civil War
Military lapel ribbon for the Suez Crisis
Military lapel ribbon for the Vietnam War
Military lapel ribbon for Warsaw Pact of the Cold War-era
Military lapel ribbon for the WASP (WW2)
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2
Military lapel ribbon for the Yom Kippur
* Ribbons not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective campaigns/operations.
Measurements and Weights icon
Structural - Crew, Dimensions, and Weights:
Unless otherwise noted the presented statistics below pertain to the Boeing L-15 Scout model. Common measurements, and their respective conversions, are shown when possible.

Operational
CREW


Personnel
2


Dimension
LENGTH


Feet
25.00 ft


Meters
7.62 m


Dimension
WIDTH


Feet
39.99 ft


Meters
12.19 m


Dimension
HEIGHT


Feet
8.69 ft


Meters
2.65 m


Weight
EMPTY


Pounds
1,512 lb


Kilograms
686 kg


Weight
LOADED


Pounds
2,055 lb


Kilograms
932 kg

Engine icon
Installed Power - Standard Day Performance:
1 x Lycoming 0-290-7 engine developing 125 horsepower.

Performance
SPEED


Miles-per-Hour
112 mph


Kilometers-per-Hour
180 kph


Knots
97 kts


Performance
CEILING


Feet
16,398 ft


Meters
4,998 m


Miles
3.11 mi


Performance
CLIMB RATE


Feet-per-Minute
628 ft/min


Meters-per-Minute
191 m/min

Armament - Hardpoints (0):

None.
Variants: Series Model Variants
• L-15 - Base Series Designation
• YL-15