Piffard Aeroplane E.N.V. Aero-engine, with two propellors
Harold Hume Harold Hume Piffard Aeroplane E.N.V. Aero-engine type D (40hp), V8 cylinder, (incomplete), by E. N. V. Motor Syndicate Limited, Willesden, Middlesex, England, 1910-1911; Metal propeller (two blades, adjustable, test type), one blade damaged, unsigned, England, 1910-1911; Wooden propeller (two blades laminated), by Robert Beney & Co., London, England, 1910-1911; Radiator, with header-tank, unsigned, England, 1910-1911; Radiator, without header-tank, unsigned, England, 1910-1911; Fuel tank, copper, unsigned, England, 1910-1911; plus seven engine spark plugs, unsigned, England, 1910-1911