In November 1974, Cessna has announced that it was going to develop the Cessna 441. It was going to be the first turboprop engine that the company will be producing, with cabin class twin seating, which can accommodate up to ten passengers. It was concurrently being designed along with the 404 Titan at that time, which was also the basis for this aircraft. The 404 Titan was a piston powered twin, while the Cessna 441 was “the pressurized, turbine development” of the former. *

The maiden flight of this aircraft was in August 1975. The name of the model was later changed to Conquest II in 1983. The aircraft is powered by a pair of Garrett TPE 331-8-406S turboprop engines. The improvement made in the engine resulted to reduction of operating costs while boosting horsepower, fuel efficiency, and range. There was also a conversion from the three-blade propellers to the smaller diameter Hartzell four-blade propellers. This resulted to a faster climb rate, increase in speed, reduction of cabin noise, and improvement of ground clearance.

In terms of design, it can also be described as having “cantilever low wing monoplane with a conventional tail.” It has a retractable tricycle landing gear, which features a trailing link main gear design and a sing wheel on its unit.** The ten passenger plane has a combination of club or individual seats. It also has a baggage compartment apart from two non-pressurized nose compartments.

The maximum cruise altitude is 28,000 feet, thereby enabling this aircraft to fly in moderate rains or high terrain. It flies over 330 miles per hour, which makes it a competitive choice for flight versus light jets as well.

However, it was not a smooth ride for Cessna at that time. By the time the company was able to have the aircraft certified; it was then suspected “to have design errors that led to in-flight airframe failures.” The company tried to recover by coming up with a lot of advertisements to market the aircraft, while they tried to fix the issues that were coming up. All the 441 models had undergone upgrades at that time.

A further development to this line of aircraft was the Cessna 425. It was derived from the piston-powered Cessna 421 airplane. It is also known as the Corsair, and first flew in 1978. It was later then renamed Conquest I. The name originally came from its sibling, the Cessna 441, or the Conquest II. All Corsairs had their landing gears modified, and were later eventually known collectively as the Conquest.

* http://en.wikipedia.org/wiki/Cessna_441
**http://compair.aviationresearch.com/index.aspx?action=aircraft_profile&id=510&document_id=1
http://www.airliners.net/aircraft-data/stats.main?id=156
http://www.imageaircharter.com/new/conquest_main.asp
http://goliath.ecnext.com/coms2/gi_0199-11331685/Cessna-425-Corsair-Conquest-I.html