North American T-6 Texan

 

1st Flight 1935

The North American Aviation T-6 Texan is an American single-engine advanced trainer aircraft used to train pilots of the United States Army Air Forces, United States Navy, Royal Air Force, Royal Canadian Air Force and other air forces of the British Commonwealth during World War II and into the 1970s.

The United States Army Air Corps and USAAF designated it as the AT-6, the United States Navy the SNJ, and British Commonwealth air forces the Harvard, the name by which it is best known outside the US.

Starting in 1948, the new United States Air Force (USAF) designated it the T-6, with the USN following in 1962.

Variants

BT Series

BT-9

Basic Trainer with 400hp Wright R-975-7 Whirlwind and new canopy.

Dangerous stall resulted in a variety of unsuccessful fixes. 42 built.

BT-9A

Armed BT-9 with one cowl gun and one rear flexible gun, and modified canopy. 40 built.

BT-9B

Minor changes from BT-9, unarmed. 117 built.

1 modified as sole BT-9D which was modified as a prototype for BT-14 with new outer wing panels and other alterations.

BT-9C

Wright R-975-7, similar to the BT-9A with minor changes. 66 built

BT-9D

One prototype only, intermediate step in development of the BT-14.

Y1BT-10

600hp Pratt & Whitney R-1340-41. First aircraft of batch of BT-9C completed as Y1BT-10.

BT-10

Production version of Y1BT-10 – cancelled

BT-14

Lengthened all metal fuselage and new canopy, Pratt & Whitney R-985-25, 251 built.

BT-14A

27 BT-14s were re-engine with 400 hp (298 kW) Pratt & Whitney R-985-11.

BC Series

North American BC-1

Basic Combat trainer version initial production version with 600hp R-1340-47 engine, Early examples had round rudder, later examples had square bottom rudder, 177 built

BC-1A

New longer semi-monocoque fuselage, new outer wing panels angled forward slightly, squared-off wingtips and triangular rudder, 93 built.

Identifiable from later types by blister fairing between undercarriage.

BC-1B

One BC-1A fitted with an AT-6A wing centre section.

BC-1I

BC-1s converted to instrument trainers, 30 modified

BC-2

Similar to BC-1A and AT-6, modified from NA-36 with details from NA-44, 3 bladed propeller.

AT Series (Texan)

AT-6 Texan

Advanced Trainer – same as BC-1A with minor changes, powered by a 600hp R-1340-47 and armed with forward-firing 0.3in machine gun, nine original started as BC-1As and 85 built.

AT-6A

Same as AT-6 but with 600hp R-1340-49 and removable wing centre section fuel tanks, 1847 built with 298 transferred to the United States Navy as the SNJ-3.

Survivors re-designated T-6A in 1948.

AT-6B

Same as AT-6A but with 600hp R-1340-AN-1 and dorsal gun fitted as standard, 400 built.

AT-6C

Same as AT-6B but with material changes to low-alloy steel and plywood, 2970 built including transfers to the United Kingdom as the Harvard IIA.

AT-6D

Same as AT-6B but with a 24V DC electrical system, 4388 built including transfers to the United States Navy as the SNJ-5 and to the United Kingdom as the Harvard III.

Redesignated T-6D in 1948.

XAT-6E

One AT-6D re-engine with a 575hp V-770-9 V-12 inline engine for trials.

AT-6F

Same as AT-6D but with a strengthened airframe and minor modifications, 956 built including transfers to the United States Navy as the SNJ-6, Redesignated T-6F in 1948. Clear fixed rear canopy. Some went to Russia via Lend-Lease.

AT-16

Noorduyn built lend-lease Harvards, 1800 built

North American A-27

Two-seat attack version of AT-6 with a 785hp R-1820-75 engine and five 0.3in machine guns (two in nose, one on each wing and one dorsal).

Designation used for ten aircraft for Thailand impressed into United States Army Air Corps use.

T-6 (Texan)

T-6A

AT-6As re-designated in 1948.

T-6C

AT-6Cs re-designated in 1948 including 68 re-builds with new serial numbers.

T-6D

AT-6D re-designated in 1948 including 35 re-builds with new serial numbers.

T-6F

AT-6F re-designated in 1948.

T-6G

Earlier model AT-6/T-6s re-built between 1949-1953 with improved cockpit layout, increased fuel capacity, steerable tail wheel, updated radios and a 600hp R-1340-AN-1 engine.

Identifiable by simplified canopy framing, 2068 modified.

LT-6G

T-6Gs converted for battlefield surveillance and forward air controller duties, 97 modified.

Nicknamed Mosquito.

T-6H

T-6Fs converted T-6G standard.

KN-1

A single T-6F damaged in a crash during the Korean War that was rebuilt as a floatplane by the Republic of Korea Navy.

Bacon Super T-6

A single AT-6F converted in 1956 with tricycle gear, bubble canopy and tip tanks; no production followed.

NJ/SNJ Texan

NJ-1

United States Navy specification advanced trainer powered with 550hp Pratt & Whitney R-1340-6.

Some re-engine with later versions of R-1340. Similar to BT-9, 40 built.

The SNJ-3C/-4C/-5C versions had an arrestor hook for carrier landings.

SNJ-1

Similar to Harvard I but with BC-1 wing center section, metal-covered fuselage and late T-6 type wing, 16 built.

SNJ-2

Same as SNJ-1 but with a R-1340-56 engine and changes to carburetor and oil cooler scoops, 61 built.

SNJ-3

Same as AT-6A, 270 built and 296 transferred from USAAC.

SNJ-3C

SNJ-3 converted as deck landing trainers with tail hook arrester gear, twelve modified.

SNJ-4

Same as AT-6C, 1240 built.

SNJ-4C

SNJ-4s converted as deck landing trainers with tail hook arrester gear.

SNJ-5

AT-6Ds transferred from the USAAC, 1573 aircraft.

SNJ-5C

SNJ-5s converted as deck landing trainers with tail hook arrester gear.

SNJ-6

AT-6Fs transferred from the USAAF, 411 aircraft.

SNJ-7

Early models modified to T-6G standards in 1952.

SNJ-7B

An armed variant of the SNJ-7.

SNJ-8

Order for 240 cancelled.

Harvard

Harvard I

Similar to BC-1 but without rear gun and with a 600hp R-1340-S3H1 engine, 400 aircraft.

Harvard II

Similar to BC-1A, 526 built, again without provision for rear gunner.

Harvard IIA (RAF & Commonwealth)

AT-6C, many with wooden rear fuselages when first delivered.

Harvard IIA (RCAF)

‘Armed’ Harvard II – Any RCAF Harvard II or IIB fitted with wing guns, rockets or bombs.

Harvard IIB

Noorduyn built Mk.IIs, some to US orders as AT-16s for lend-lease.

Transfers back from the USAAF (1800) and 757 built.

Harvard T.T. IIB

Target Tug – 42 aircraft built for the RAF by Noorduyn.

Number probably included in II totals.

Harvard IIF

Bombing/gunnery trainer – One-off modified from Mk.II with bomb aimer’s blister and AT-6 type cockpit.

Harvard III

AT-6D, 537 aircraft for RAF.

Harvard 4

Canadian development of Harvard II paralleling the T-6G, and built by Canadian Car & Foundry, 270 for the RCAF and 285 for USAF.

Some publications refer to these as T-6J however the aircraft record cards do not use this designation.

Harvard 4K

Belgian designation for Harvard IIs and IIIs upgraded to roughly Harvard 4 specifications.

Harvard 4KA

Belgian designation for armed variant of 4K.

Specifications

Crew: two (student and instructor)

Length: 29 ft (8.8 m)

Wingspan: 42 ft (13 m)

Height: 11 ft 8 in (3.56 m)

Wing area: 253.7 sq ft (23.57 m2)

Empty weight: 4,158 lb (1,886 kg)

Gross weight: 5,617 lb (2,548 kg)

Powerplant: 1 × Pratt & Whitney R-1340-AN-1 Wasp radial engine, 600 hp (450 kW)

Performance

Maximum speed: 208 mph (335 km/h, 181 kn) at 5000 ft (1,500 m)

Cruise speed: 145 mph (233 km/h, 126 kn)

Range: 730 mi (1,170 km, 630 nmi)

Service ceiling: 24,200 ft (7,400 m)

Rate of climb: 1,200 ft/min (6.1 m/s)

Wing loading: 22.2 lb/sq ft (108 kg/m2)

Power/mass: 0.11 hp/lb (kW/kg)

Armament

Provision for up to 3 × 0.30 in (7.62 mm) machine guns.

………………………………………………………………………………………………………………………………………………………………………………………………………………………………….

 

 

Share on facebook

Share on facebook