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Boeing L-15 Scout


Light Liaison Observation Aircraft


United States | 1947



"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."



Authored By: Staff Writer | Last Edited: 07/30/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
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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Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Boeing L-15 Scout Light Liaison Observation Aircraft.
1 x Lycoming 0-290-7 piston engine developing 125 horsepower driving a two-bladed propeller unit at the nose.
Propulsion
112 mph
180 kph | 97 kts
Max Speed
16,398 ft
4,998 m | 3 miles
Service Ceiling
628 ft/min
191 m/min
Rate-of-Climb
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Boeing L-15 Scout Light Liaison Observation Aircraft.
2
(MANNED)
Crew
25.0 ft
7.62 m
O/A Length
40.0 ft
(12.19 m)
O/A Width
8.7 ft
(2.65 m)
O/A Height
1,512 lb
(686 kg)
Empty Weight
2,055 lb
(932 kg)
MTOW
Variants
Notable series variants as part of the Boeing L-15 Scout family line.
L-15 - Base Series Designation
YL-15
Operators
Global customers who have evaluated and/or operated the Boeing L-15 Scout. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 12 Units

Contractor(s): Boeing Wichita - USA
National flag of the United States

[ United States ]
Relative Max Speed
Hi: 120mph
Lo: 60mph
Aircraft Max Listed Speed (112mph).

Graph Average of 90 MPH.
Era Crossover
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Max Alt Visualization
Small airplane graphic
Production Comparison
12
36183
44000
Entry compared against Ilyushin IL-2 (military) and Cessna 172 (civilian) total production.
MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030
Aviation Timeline
EarlyYrs
WWI
Interwar
WWII
ColdWar
Postwar
Modern
Future
1 / 1
Image of the Boeing L-15 Scout

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.
MARITIME / NAVY
RECONNAISSANCE
Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
The Boeing L-15 Scout Light Liaison Observation Aircraft appears in the following collections:
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