XP5Y-1 : Convair's giant flying boat | Aviation Week, July 25, 1949


New view of the giant Convair flying boat XP5Y-1 on the ramp at San Diego awaiting the four Allison T-40 turboprops with which it will be powered. The 5500 hp. T-40 is currently undergoing testing by Allison at Indianapolis and is expected to be delivered to Convair late in the summer. Blisters bulging just below the cockpit and at the base of the dorsal fin are remotely controlled gun turrets. The 138,000-lb. flying boat is expected to have a top speed of close to 400 mph.