Huff-Daland TW-5

Huff-Daland TW-5

AT-1s
Role	Trainer
Manufacturer	Huff-Daland
Primary users	United States Army Air Service United States Navy
Produced	1923
Number built	26

The Huff-Daland Type XV Training Water-Cooled TW-5 was a biplane trainer designed by the Huff-Daland Aero Corporation in the early 1920s for the United States Army Air Service.

Design and development

It was a development of the TA-6 (which itself was a one-off redesigned TA-2 with a 220 hp Lawrance J-1 air-cooled engine) but powered by a 190 hp Wright-Hispano E2. In 1924, the letter-and-number system was revised, and the TW-5 became an Advanced Trainer AT-1. In 1927, Huff-Daland Aero Corporation became a division of Keystone Aircraft Corporation.

Operational history

Versions of the AT-1 were built for the United States Navy as training and observation aircraft.

Variants

HN-1

TA-6 (Trainer, Air-cooled type 6): Powered by the 200 hp Lawrance J-1 air-cooled engine, 1 built
TW-5 (Trainer, Water-cooled type 5): Powered by the 150-hp (112-kW) Wright-Hispano 1 engine, 5 built.
AT-1: U.S. Army Advanced Trainer, 10 built.
AT-2: One aircraft tested in a number of single-seat and two-seat versions
HN-1: United States Navy version of the AT-1 powered by a 180hp Wright-Hispano E2 engine, 3 built.
HN-2: United States Navy version of the AT-1 powered by a 200hp Lawrance J-1, 3 built.
HO-1: United States Navy observation version of the HN-1 powered by a 180hp Wright-Hispano E2 engine with intercangeable wheel or float undercarriage, 3 built

Operators

United States

Specifications (AT-1)

General characteristics

Crew: 2
Length: 24 ft 7 in (7.5 m)
Wingspan: 31 ft 2 in (9.5 m)
Gross weight: 2,358 lb (1,070 kg)
Powerplant: 1 × Wright Hisso I V-8 water-cooled piston engine, 150 hp (110 kW)

Performance

Maximum speed: 112 mph (180 km/h; 97 kn)

References

Wikimedia Commons has media related to Huff-Daland.

"United States Military Aircraft Since 1908" by Gordon Swanborough & Peter M. Bowers, 1977, 675 pp.

Aircraft produced by Huff-Daland Aero, Keystone Aircraft, and Keystone-Loening
Manufacturer designations	K-47 K-55 K-78 K-84 K-85 Air Yacht Commuter Pathfinder Pronto
Bombers	LB-1 XLB-3 LB-5 LB-6 LB-7 LB-8 LB-9 LB-10 LB-11 LB-12 LB-13 LB-14 XB-1 B-3 B-4 B-5 B-6
Trainers	TA-6 TW-5 AT-1 AT-2 NK
Patrol aircraft	PK

USN observation aircraft designations, pre-1962

Observation

Boeing	OB O2B
Curtiss	OC O2C O3C
Douglas	OD O2D
Elias	EO
Cessna	OE
Grumman	OF
Huff-Daland	HO
Berliner-Joyce	OJ
Keystone	OK
Loening	OL O2L
Martin	MO M2O O3M
Naval Aircraft Factory	NO O2N
Viking	OO
Pitcairn	OP
Vought	UO O2U O3U O4U O5U
Stinson	OY
Pennsylvania Aircraft	OZ

Observation Scout

Edo	OSE
Naval Aircraft Factory	OSN OS2N
Stearman	OSS
Vought	OSU OS2U

USN/USMC trainer aircraft designations 1922-1948
Boeing	NB N2B
Curtiss	NC¹ N2C
Piper	NE
Huff-Daland	HN
Howard	NH
North American	NJ
Keystone	NK
Langley	NL
Martin	NM¹ N2M
Naval Aircraft Factory	NN¹ N2N N3N N4N¹ XN5N
Spartan	NP
Fairchild	NQ
Ryan	NR
Stearman	NS N2S
New Standard	NT
Timm	NT² N2T
Consolidated	NY N2Y N3Y N4Y
¹ Not assigned ² Assigned to a different manufacturer's type

United States trainer aircraft designations, Army/Air Force and Tri-Service systems

Advanced Trainer
(1925-1948)

Basic Combat
(1936-1940)

Basic Trainer
(1930-1948)

Primary Trainer
(1924-1948)

Main sequence
(1948-present)

1948 redesignations	T-6 T-7 T-11 T-13A T-13B/D T-17 T-19
New designations	T-28 T-29 T-30 T-31 T-32 T-33 T-34 T-35 T-36 T-37 T-38 T-39 T-40 T-41 T-42 T-43 T-44 T-45 T-46 T-47 T-48 (I) T-48 (II) CT-49 T-50 T-51 T-52 T-53

Alternate sequences

1962 redesignations	T-1 T-2
1990-1996 sequence	T-1 T-2¹ T-3 T-4¹ T-5¹ T-6

¹ Not assigned

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USAAS trainer designations 1919-1924
Trainer, Air-cooled	TA-1 TA-2 TA-3 TA-4 TA-5 TA-6
Trainer, Water-cooled	TW-1 TW-2 TW-3 TW-4 TW-5