Which British aircraft was mass-produced in the US?

Short answer

The Airco D.H.4: of the 6,295 built, 4,846 came from American factories. Most were built in the United States as general-purpose two-seaters for the American Expeditionary Forces in France, and it was the only American-built aircraft to see combat in the First World War.

Published: November 1, 2026 · Updated: November 1, 2026 · Edited by Above Ten Thousand · Editorial policy

Which British aircraft was mass-produced in the US?

Open Source Philosophy and the Dawn of Aviation (page 23 crop)Bento Silva de Mattos (CC BY), vía commons

A British design on American production lines

Most D.H.4s were built as general-purpose two-seaters in the United States, intended for the American Expeditionary Forces in France, and the type became the only American-built aircraft to see combat in the First World War. Total production reached 6,295 aircraft, of which 4,846 were built in the United States. In Britain, by the close of production 1,449 aircraft had been built, out of orders for 1,700, for the Royal Flying Corps and the Royal Naval Air Service.

The factories and the orders

Several different companies handled that Americanised variant of the D.H.4, among them the Boeing Airplane Corporation, the Dayton-Wright Company, the Fisher Body Corporation and the Standard Aircraft Corporation. American manufacturers were given orders for 9,500 D.H.4s, of which 1,885 actually reached France during the war.

Engines and limitations

The aircraft was designed for the newly developed 160 hp (120 kW) BHP (Beardmore Halford Pullinger) engine. The type was also fitted with the 375 hp (280 kW) Rolls-Royce Eagle, the 230 hp (170 kW) BHP, the Royal Aircraft Factory's 200 hp (150 kW) RAF3A, the 230 hp (170 kW) Siddeley Puma and the 260 hp (190 kW) Fiat. One drawback of the design was the distance between pilot and observer, separated by the large main fuel tank, which made communication between the two difficult, especially in combat against enemy fighters.