 The wings were unusually braced with 'vee' interplane struts which dispensed with any flying wires  and could be folded for ease of hangarage.The main fuel tank was fitted in the fuselage, while a pump raised the fuel to a small tank in the wing centre section where it was then fed to the engine by gravity.An Elf placed fifth in the 1930 King's Cup Air Race out of a field of 88 entrants.