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North American P-64 (NA-50/NA-68)


Single-Seat, Single-Engine Monoplane Fighter / Trainer


United States | 1940



"The North American P-64 began its days as a fighter through the NA-50, was advanced in the NA-68, and served the USAAC as a trainer."



Authored By: Staff Writer | Last Edited: 11/06/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
One of North American's first projects after moving from the American East Coast to the Los Angeles, California area was production of its O-47 observation aircraft for the United States Army Air Corps. The portly aircraft, powered by a single engine at the nose and carrying a team of three, was built in 239 total examples for the service. At this time, the company had yet to unveil its war-winning designs like the B-25 Mitchell Medium Bomber and the P-51 Mustang fighter - it had, however, made a strong name for itself as a designer of capable military trainers.

Attention turned to a design that became the "NA-16" of 1935, a single-engine, twin-seat trainer which went on to see then-considerable production figures of 1,935 built from 1935 to 1939. These went on to see widespread global service and variants of the line eventually became the "BT-9" (over 260 built) and the Australian CAC "Wirraway" (755 built). Powered by a Wright R-975 "Whirlwind" air-cooled radial piston engine of 400 horsepower, the aircraft proved serviceable enough in its role until overtaken by more advanced designs leading up to the war years.

Against the backdrop of a deteriorating global situation, and a future World War becoming something of an inevitability, the company then set it sights on a low-cost, export-minded fighter with all-modern features and used the simplistic NA-16 as the starting point - thus giving rise to the "NA-50" company designation.

For power, the NA-50 was given a single Pratt & Whitney R-1820-77 air-cooled radial piston engine of 870 horsepower driving a three-bladed propeller unit at the nose. It was largely completed in metal though fabric was used at the control surfaces. Armament was modest with 2 x 0.30 caliber medium machine guns synchronized to fire through the spinning propeller blades. Up to 550lb of conventional drop ordnance could be carried under the wings, giving the fighter a light-bombing capability. On the whole, the design lacked much of what made the British "Spitfire" and German Bf 109 excellent fighters as the 1930s went but would be a capable solution to Second and Third World parties nonetheless. At the very least, it exhibited modern qualities such as an enclosed cockpit, a retractable undercarriage (tail-dragger type), and metal construction when compared to frontline biplanes of the day.

This led to the Peruvian Air Force's interest in the low-cost American fighter, mainly due to what the product could offer the country in its war against neighboring Ecuador. The type was therefore ordered, and operated, into 1950 and were used in anger as fighters and fighter-bombers for their time in the air. Seven NA-50s were ordered and delivered in all.

Then came an order in 1941 from the Royal Thai Air Force for six of the aircraft which were to be used to strengthen a possible defense against a growing Japanese Empire. These airframes were largely similar to the Peruvian models but added 2 x 20mm automatic cannons at the wings and had revised tail surfaces. With the changes in place, the modified design became known as the "NA-68". However, the order fell to naught as Thailand fell to the Japanese and the in-delivery NA-68 fighter stock made it no further than Hawaii from its Californian origination.

Instead, this fleet of six were handed over to the USAAC which sought any and all training platforms for its airmen. Due to their limited performance and armament (as modern fighters went), the aircraft were relegated to the Advanced Training role. Despite this, the USAAC elected to designate the trainers as "P-64" owing to its "pursuit" fighter roots. In their new role (sans the machine gun armament to save on weight), the aircraft operated admirably well with excellent aerobatic handling and performance being notable traits.

Those few P-64s that survived the war and ended up in the yards of expired / abandoned aircraft readied for the scrapman's torch. Two are known to have been preserved - an astounding feat considering only thirteen were ever made.

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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 North American P-64 Single-Seat, Single-Engine Monoplane Fighter / Trainer.
1 x Wright R-1820-77 9-cylinder air-cooled radial piston engine developing 870 horsepower driving a three-bladed propeller unit at the nose.
Propulsion
267 mph
430 kph | 232 kts
Max Speed
27,559 ft
8,400 m | 5 miles
Service Ceiling
628 miles
1,010 km | 545 nm
Operational Range
City-to-City Ranges
Operational range when compared to distances between major cities (in KM).
NYC
 
  LON
LON
 
  PAR
PAR
 
  BER
BER
 
  MOS
MOS
 
  TOK
TOK
 
  SYD
SYD
 
  LAX
LAX
 
  NYC
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the North American P-64 Single-Seat, Single-Engine Monoplane Fighter / Trainer.
1
(MANNED)
Crew
27.1 ft
8.25 m
O/A Length
37.2 ft
(11.35 m)
O/A Width
9.0 ft
(2.75 m)
O/A Height
4,663 lb
(2,115 kg)
Empty Weight
6,801 lb
(3,085 kg)
MTOW
Design Balance
The three qualities reflected below are altitude, speed, and range. The more full the box, the more balanced the design.
RANGE
ALT
SPEED
Armament
Available supported armament and special-mission equipment featured in the design of the North American P-64 (NA-50/NA-68) Single-Seat, Single-Engine Monoplane Fighter / Trainer .
STANDARD:
2 x .30 caliber Medium Machine Guns (MMGs).

ALTERNATIVE:
2 x 20mm Automatic cannons (underwing pods) with 2 x .30 caliber Medium Machine Guns (MMGs).

OPTIONAL:
Up to 550lb of conventional drop bombs held externally under the wings.
Variants
Notable series variants as part of the North American P-64 (NA-50/NA-68) family line.
P-64 - Base Series Designation; USAAC designation of NA-68 stock destined for Thailand; sans armament and used in Advanced Trainer role.
NA-50 - Peruvian export order; initial fighter design formed from the NA-16 trainer; 2 x 0.30 caliber machine guns; metal construction with fabric control surfaces; retractable landing gear; Wright R-1820-77 air-cooled radial of 870 horsepower; seven examples completed.
NA-68 - Based in the NA-50 though with 2 x 20mm automatic cannons added and revised tail surfaces; order nixed with fall of Thailand to Japan; reconstituted by USAAC as Advanced Trainers.
Operators
Global customers who have evaluated and/or operated the North American P-64 (NA-50/NA-68). Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 13 Units

Contractor(s): North American Aviation - USA
National flag of Peru National flag of Thailand National flag of the United States

[ Peru; Thailand (ordered, never delivered); United States ]
Relative Max Speed
Hi: 300mph
Lo: 150mph
Aircraft Max Listed Speed (267mph).

Graph Average of 225 MPH.
Era Crossover
Pie graph section
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Max Alt Visualization
Small airplane graphic
Production Comparison
13
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 North American P-64 (NA-50/NA-68)
Image from the Public Domain.

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.
AIR-TO-AIR COMBAT
INTERCEPTION
GROUND ATTACK
CLOSE-AIR SUPPORT
TRAINING
BASIC TRAINING
ADVANCED TRAINING
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 North American P-64 (NA-50/NA-68) Single-Seat, Single-Engine Monoplane Fighter / Trainer appears in the following collections:
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