The Huff-Daland TA-2 was an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 biplane trainer designed by the Huff-Daland Aero Corporation

Huff-Daland Aero Corporation

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 the Huff-Daland Aero Company with its main headquarters in Bristol, Pennsylvania...

 in the early 1920s for the United States Army Air Service

United States Army Air Service

The Air Service, United States Army was a forerunner of the United States Air Force during and after World War I. It was established as an independent but temporary wartime branch of the War Department by two executive orders of President Woodrow Wilson: on May 24, 1918, replacing the Aviation...

. It was a development of the HD.4 Midget with a 140 hp ABC Wasp radial engine. Three prototypes (one for static tests and two fliers) were ordered for evaluation at McCook Field. The two flying examples were later rebuilt with a re-designed fuselage, balanced rudder, smaller wings and a 90 hp Curtis OX-5 engine. One aircraft was later re-engined with a Lawrance J-1

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 9-cylinder, air-cooled radial design.-Development:...

 radial engine.

The TA-2 was re-designed with a 200 hp Lawrance J-1

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 9-cylinder, air-cooled radial design.-Development:...

 engine and re-designated the Huff-Daland AT-6

Huff-Daland TW-5

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:...

, one prototype only was built.