In November 1974, Cessna announced that it was developing the Model 441. It was to be a turboprop-powered, cabin class twin with seating for up to ten. The 441, which was later named the Conquest, was based on the piston-engined 404 Titan, but was powered by Garrett TPE 331-8-406S turboprop engines and was pressurized.The maiden flight of the prototype was accomplished in August 1975, and FAA Part 23 certification and first deliveries followed in September 1977. The inflight breakup of an early production Conquest just four months after certification led to grounding of the fleet. The crash was apparently the result of elevator and/or trim tab flutter, and a redesign of the system was undertaken. The aircraft was renamed Conquest II in 1983, when the 425 Corsair was renamed Conquest I. Production of the Conquest II ended in 1986, after a run of 362 units. Operators of Cessna 441 Conquest II twin turboprops must comply with a life limit of 22,500 flying hours, and several of the aircraft have been grounded. As part of the continuing product safety process, Cessna looks at data from test articles and from field reports regarding the structural integrity of its aircraft. Based on test and field data, Cessna has issued a Supplemental Inspection Document recommending the life limit for the aircraft.
The Challenger 601-3R is powered by two GE CF34-3A1 two-spool, high-bypass ratio turbofans rated at 8,729 lbs. thrust each at takeoff. Inspection interval on the engines is 6,000 hours.
The Conquest II was offered with Cessna 1000-series avionics as standard equipment, but most buyers opted for the optional Collins avionics. A typical installation includes dual Collins VHF 20A comms, dual VIR 30A navs, dual TDR 90 transponders, ADF 60, dual DME 40, Collins FIS 70 flight director, Sperry 1000 autopilot, and Sperry WXR 300 color weather radar.
The Cessna 441 Conquest II is a twin-engine, turboprop-powered, pressurized aircraft configured as a cantilever low wing monoplane with a conventional tail. The airframe is of aluminum monocoque construction. The retractable tricycle landing gear features a trailing link main gear design, and has a single wheel on each unit. An airstair door is located on the port side of the fuselage, aft of the wing.
The Cessna Conquest II can be configured to seat up to eleven occupants including the pilot, but a more typical configuration would seat six to eight passengers in a combination of club and individual seating. A belted lavatory seat is located aft of the passenger cabin. A baggage compartment occupies the extreme aft of the pressurized cabin, and two nonpressurized nose compartments are also available for baggage. Internal cabin dimensions are 4.3ft. in height, 4.6ft. in width and 12.9ft. in length.
|General||Conquest II, CE-441|
|Category||Multiengine Turboprop < 12,500 lbs.|
|Years Aircraft Manufactured||1978 – 1986|
|Serial Number Range||441-0001 – 441-0363|
|Retail High Price||$1,600,000.00 / 1,255,520.00€|
|Retail Low Price||$595,000.00 / 466,896.50€|
|Characteristics||Conquest II, CE-441|
|Seating||1 + 8/10|
|External Dimensions (ft)||Conquest II, CE-441|
|Internal Dimensions (ft)||Conquest II, CE-441|
|Internal Length (Overall/Net Height)||12.9|
|Internal Width (Max/Floor)||4.6|
|Baggage||Conquest II, CE-441|
|Power||Conquest II, CE-441|
|Engines||2 Hon TPE331-8-403S|
|Output (lbs ea.)/Flat Rating||636shp|
|Data based on latest manufactured year|