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 designation 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
The
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 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
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 interchangeable wheel or float undercarriage, 3 built