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Boeing XP-8

Prototype Fighter

Boeing XP-8

Prototype Fighter

OVERVIEW
SPECIFICATIONS
ARMAMENT
VARIANTS
HISTORY
MEDIA
OVERVIEW



Only a single example of the experimental Boeing XP-8 pursuit fighter was ever produced.
National Flag Graphic
ORIGIN: United States
YEAR: 1928
MANUFACTURER(S): Boeing - USA
PRODUCTION: 1
OPERATORS: United States
SPECIFICATIONS



Unless otherwise noted the presented statistics below pertain to the Boeing XP-8 model. Common measurements, and their respective conversions, are shown when possible.
CREW: 1
LENGTH: 23.43 feet (7.14 meters)
WIDTH: 30.09 feet (9.17 meters)
HEIGHT: 8.99 feet (2.74 meters)
WEIGHT (EMPTY): 2,392 pounds (1,085 kilograms)
WEIGHT (MTOW): 3,417 pounds (1,550 kilograms)
ENGINE: 1 x Packard 2A-1500 liquid-cooled piston engine developing 600 horsepower.
SPEED (MAX): 176 miles-per-hour (283 kilometers-per-hour; 153 knots)
RANGE: 326 miles (525 kilometers; 283 nautical miles)
CEILING: 20,965 feet (6,390 meters; 3.97 miles)
RATE-OF-CLIMB: 1,750 feet-per-minute (533 meters-per-minute)




ARMAMENT



STANDARD:
1 x 0.30 caliber machine gun
1 x 0.50 caliber machine gun
VARIANTS



Series Model Variants
• XP-8 - Base prototype designation


HISTORY



Detailing the development and operational history of the Boeing XP-8 Prototype Fighter.  Entry last updated on 4/25/2016. Authored by Staff Writer. Content ©www.MilitaryFactory.com.
Following World War 1 (1914-1918), the aircraft as a military platform advanced beyond its original fabric-over-wood coverings and underpowered engines. Early forms were now being replaced by metal-skinned airframes with reinforced structures and evermore powerful engines benefitting from advancing technologies in the field. What remained however was the general biplane shape and open-air cockpit along with fixed, forward-firing machine gun armament and fixed undercarriage systems. After covering several designs for the military during and after World War 1, Boeing began work on more advanced fighter types to fulfill the new US Army Air Service "Pursuit" fighter requirements emerging and established itself as a prominent aircraft maker with their PW-9. In the middle/late 1920s, Boeing attempted to sell the renamed "US Army Air Corps" on a new pursuit type as the "XP-8" developed as a private venture offering by the company and intended to fulfill a 1925 USAAC requirement.

The Boeing XP-8 represented a "one-off" biplane fighter prototype (Boeing Model 66). It continued use of a biplane wing arrangement as well as open-air cockpit and fixed undercarriage structure. The airframe was powered by a single, front-mounted Packard engine and carried its radiator system along the lower wing root - a distinct feature in its design. The aircraft was further distinguished by its noticeably contoured nose assembly which was to aid in aerodynamic efficiency at expected speeds. Armament was consistent with aircraft of the time and made up of a combination of 1 x 0.30 caliber medium machine gun and 1 x 0.50 caliber heavy machine gun in fixed mountings for forward-firing. Power was served through a single Packard 2A-1530 series inverted "vee" engine delivering 600 horsepower allowing the XP-8 a top listed speed of 170 miles per hour while cruising was around 135 miles per hour. The aircraft displayed a service ceiling of 20,950 feet and range of 325 miles. Rate-of-climb was a useful 1,750 feet per minute. The engine drove a two-bladed propeller assembly. Dimensionally, the XP-8 showcased a length of 23 feet, 4 inches, a wingspan of 30 feet and a height of 8 feet, 4 inches. Maximum weight was listed at 3,420 lbs. The main wings were of uneven span featuring parallel struts and cabling with the pilot seated aft and under the upper wing arrangement.

The aircraft was delivered USAAC testing facilities in early 1928. Pilots noted the type's good handling characteristics thought he test vehicle could not attained required speeds for an Army fighter. Engine problems soon developed where engine oil and water would leak into the bottom of the powerplant and foul sparkplugs. The issue was never resolved and, despite evaluation into June of 1929, the aircraft was not accepted for Army service. The prototype was then scrapped and lost to history though Boeing utilized some qualities of the design to sell the US Navy, Japan and Brazil on its F2B model - 33 built in all.




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.

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Relative Maximum Speed Rating
Hi: 200mph
Lo: 100mph
    This entry's maximum listed speed (176mph).

    Graph average of 150 miles-per-hour.
City-to-City Ranges
NYC
 
  LDN
LDN
 
  PAR
PAR
 
  BER
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  MSK
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  TKY
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  SYD
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  LAX
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  NYC
Graph showcases the Boeing XP-8's operational range (on internal fuel) when compared to distances between major cities.
Aviation Era
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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
1
1

  * Commercial Market High belongs to Cessna 172.

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


Altitude Visualization
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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
Graphical image of an aircraft medium machine gun
Graphical image of an aircraft heavy machine gun
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