The Hanriot HD-1 was a French World War I single-seat fighter aircraft. Rejected for service with French squadrons in favour of the SPAD SVII, the type was supplied to Belgium and Italy, with both of which it proved highly successful. Of a total of about 1,200 examples built, 831 were produced by Italian companies. Five surviving HD1s are preserved in museums today.

On display at the Planes of Fame Air Museum. This is a combat veteran that served with the U.S. Navy at NAS Dunkerque, France in 1918, flying coastal patrols and searching for U-boats. Originally built as a HD.2 seaplane, it was later converted to a HD.1 land fighter. In 1923, French ace Charles Nungesser restored and flew this aircraft. It bears his famous "Knight of Death" insignia on the side of the fuselage. Most of the French-built HD.1s served with the Belgians and Italians during World War I.

Registered N75, ex-G-AFDX, OO-APJ, HD-75/Belgian AF. Restored and flown Sonoma County Airport, California in 1968. Transported in World Airways Boeing 747 to Paris Air Show in 1973 as per photo. Bad weather prevented it flying. Flew little on its return to the US, stored at Schelleville. Presented to the RAF Museum, delivered to Lyneham Jan 1979. Restored at Cardington and displayed at Hendon. In 2013 the RAFM traded it and a Farman F.40 with the Vintage Aviator for reproductions of the Sopwith Snipe, Royal Aircraft Factory R.E.8 and Albatros D.Va. Current with TVAL in New Zealand in 2023.

[Nikon D300 + Tokina 12-24mm/4]

The Hanriot-Dupont 1 was much hailed for its speed and agility. This is one of more than 800 built under license by Nieuport-Macchi at Varese and was flown by the ace Flavio Baracchini. The municipality of Florence donated the aircraft to the AMI. Serial not seen on the outside.

Preserved 1919-built for US Navy

Newly restored World War One Hanriot HD-1 displayed at the 1973 Paris Air Show. It had previously been OO-APJ and G-AFDX.

The HD-1 was anticipated as a replacement in the French AF as a replacement for the Nieuport 17 but was thought inferior to the SPAD S.XII. Most of these unwanted aircraft went to Belgium. But the USA ordered a number of the floatplane HD-2 and used them in France. After the armistice, the remaining 10 were shipped to the USA and converted to landplanes, but keeping the higher-powered 130hp engines of the HD-2. They received serials A5620 to A5629. This replica was built by C Swanson.

French fighter design introduced into service in late 1916.

In the Grahame-White Factory Exhibition Hall at the Royal Air Force Museum, the type was first built in 1916

French designed single seat fighter built towards the end of World War 1. Exhibited in the Musee Royal de l'Armee in Brussels wearing Belgian AF markings.

Rejected in favour of the SPAD S.VII in its own country, the French Hanriot fighter was quite succesful in Italian and Belgian service and was flown by the top Belgian ace of the Great War, Willy Coppens.