FOR MILLIONAIRES ONLY. For 1925, the all-metal, 5-seat Kirkham Air Yacht (built at Port Washington, Long Island, by Kirkham Products Co., Garden City, L.I.) was a remarkably streamlined flying-boat; owner, Cornelius Vanderbilt. The Air Yacht had a speed range of 60-145 m.p.h. for an a.u.w. of 3,700 lb. Power. 450-h.p. Napier Lion Srs. II.

MR. HAROLD VANDERBILT'S NEW AIR YACHT: The new monoplane flying boat, fitted with a 450 h.p. Napier "Lion," that has just been completed at Long Island, N.Y., to the order of Mr. Harold Vanderbilt, and to which reference has previously been made in "Flight." It is a five-seater of metal construction - corrugated duralumin being largely employed - and has been designed and built by the Kirkham Products Corporation, Garden City, N.Y. Span, 47 ft; speed range, 60-145 m.p.h.; weight empty, 3,700 lb.; range of action, 4 1/2 hours