The Bird Innovator, N5PY, at Albuquerque International Airport, 1995 in Rio Grande Yacht markings.
The effect of the extra engines exceeded expectations, such that it was capable of a cruising speed of 152 mph (244 km/h) on four engines, and of maintaining 124 mph with one of the main engines feathered. The original PBY cruised at about 125 mph. The downside of the Innovator conversion was the basic empty weight (BOW) of the aircraft increased to over 29,000 lbs. This exceeded the 27,000 lbs maximum that the US Military considered safe for water operations
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