The Huff-Daland Type XV Training Water-Cooled TW-5 was a biplane trainer designed by the

Huff-Daland Aero Corporation Huff-Daland was an American aircraft manufacturer. Formed as Ogdensburg Aeroway Corp in 1920 in Ogdensburg, New York by Thomas Huff and Elliot Daland, its name was quickly changed to Huff-Daland Aero Corp and then in 1925 it was changed again to ...

in the early 1920s for the

United States Army Air Service The United States Army Air Service (USAAS)Craven and Cate Vol. 1, p. 9 (also known as the ''"Air Service"'', ''"U.S. Air Service"'' and before its legislative establishment in 1920, the ''"Air Service, United States Army"'') was the aerial war ...

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 The Lawrance J-1 was an engine developed by Charles Lanier Lawrance and used in American aircraft in the early 1920s. It was a nine-cylinder, air-cooled radial design. Development During World War I the Lawrance Aero Engine Company of New Yor ...

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 The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...

as training and observation aircraft.

Variants

The ;TA-6 (Trainer, Air-cooled type 6) :Powered by the 200 hp

air-cooled engine, 1 built ;TW-5 (Trainer, Water-cooled type 5) :Powered by the 150-hp (112-kW) Wright-Hispano I 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

, 3 built. ;HO-1 :United States Navy observation version of the HN-1 powered by a 180hp Wright-Hispano E2 engine with interchangeable wheel or float undercarriage, 3 built

Operators

; *

Specifications (AT-1)

References