The Robert Lusk Collection Part IV.
An Airco DH4 two-bladed wooden propeller, American, circa 1918,

The Summer Automobilia Auction including The Robert Lusk Collection Part IV|16 July 2026, 13:33 BST|Guildford

An Airco DH4 two-bladed wooden propeller, American, circa 1918,

305cm diameter, marked 400 LIBERTY, Drg 22699 RH, G 1451. N9, on one side of the hub, marked Drg 22699 RH, D3050 P 2230 G1451 N9 on the other side of the hub, the central hub mounted drilled with 8 holes, fitted with wooden frame to mount, later barometer or clock (now removed), with custom made metal mounting bracket, (some discolouration and dirt from long terms storage).

Footnotes

The 400 Liberty engine was also known as The Liberty L-12, a 27-litre (1,649 cubic inch) water-cooled 45° V-12 aircraft engine of 400 hp (300 kW) designed for a high power-to-weight ratio and ease of mass production. During World War I the majority of L-12 engines were fitted in American built Airco DH 4. Of 6295 DH 4 aircraft built for use by the allies, 4846 were built in the United States predominantly fitted with the Liberty L-12. The Airco DH 4 was retired from use in the US Army in 1932.

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