Convair CV580 F

A twin-engined commercial transport aircraft produced by modifications to the 440 model with two Allison 501 D13D/H turboprop engines with four-blade propellers, in place of piston engines with three-blade propellers, an enlarged vertical fin and modified horizontal stabilizers.  The first was delivered to a customer in 1964.

Length: 24.84 metres; Span: 32.12 metres; Weight empty: 13,732 kg Maximum take-off weight: 23,371 kg; Passengers: up to 56; Maximum cruising speed: 550 km/h (342 mph); Ceiling: 6,096 metres (20,000 ft).