Cessna CE-425 Corsair I
In November 1977 Cessna initiated the design of a new pressurised aircraft and the prototype flew for the first time on 12 September 1978. The aircraft combined the airframe of the Model 421 Golden Eagle with two Pratt & Whitney of Canada PT6A turboprop engines. Other features included the dihedral tailplane of the Model 404.
The new aircraft was introduced in 1980 as the Cessna Model 425 Corsair. Like the Model 421, the Corsair offered six/eight seats in varying. The Corsair was certified in mid-1980 and first deliveries made in November the same year.
Late in 1982 the aircraft was retrospectively designated and marketed as the Corsair I and 226 had been delivered when production terminated in 1986. The Garrett-engined Corsair II was built as the Model 441.
A 400 lb gross weight increase is possible for the Corsair when owners fit the later standard stronger wheels and change tyres from 8 to 10 ply. On completing these changes they now have a Conquest I and the original big brother becomes Conquest II.
Engines: 2 x P&W PT6A-112, 450 shp, 335kW.
Props: McCauley 3-blade, 93-in.
Length: 10.93 m / 35 ft 10 in
Height: 3.84 m / 12 ft 7 in
Wingspan: 13.45 m / 44 ft 2 in
Wing area: 20.90 sq.m / 224.97 sq ft
Wing aspect ratio: 8.7.
Maximum ramp weight: 8275 lbs.
Maximum takeoff weight: 8200 lbs.
Standard empty weight: 4915 lbs.
Maximum useful load: 3360 lbs.
Zero-fuel weight: 6740 lbs.
Maximum landing weight: 8000 lbs.
Wing loading: 36.4 lbs/sq.ft.
Power loading: 9.1 lbs/hp.
Maximum usable fuel: 2452 lbs.
Best rate of climb: 2027 fpm.
Certificated ceiling: 30000 ft.
Max pressurisation differential: 5 psi.
8000 ft cabin alt @: 23500 ft.
Maximum single-engine rate of climb: 434 fpm @ 111 kts.
Single-engine climb gradient: 235 ft/nm.
Single-engine ceiling: 18500 ft.
Maximum speed: 264 kts.
Normal cruise @ 26,000ft: 257 kts.
Fuel flow @ normal cruise: 400 pph.
Endurance at normal cruise: 5.1 hrs:
Stalling speed clean: 88 kts.
Stalling speed gear/flaps down: 79 kts.
Turbulent-air penetration speed: 154 kts.