Cessna 441 Conquest II

Cessna 441 Conquest II: the pressurized twin-turboprop that opened Cessna’s turbine era

The Cessna 441 Conquest II was Cessna’s first turboprop design, built to bridge the gap between piston twins and entry-level business jets. Development began in November 1974 and the aircraft first flew on August 26, 1975.

Cessna delivered the first production aircraft in September 1977 under the simple name “Conquest.” In 1983, Cessna renamed the smaller Model 425 the “Conquest I” and the original 441 became the “Conquest II” to tell the two apart. Production of the 441 ran through 1986, with 362 total units built.

The airframe grew out of the pressurized Cessna 404 Titan, adopting a low-wing layout, retractable landing gear, and bonded, high-aspect-ratio wings for efficient high-altitude cruise. As of 2023, roughly 265 examples remained in active service.

Cessna 441 Conquest II performance

Two Garrett (now Honeywell) TPE331-8 turboprops, rated at 636 shaft horsepower each, drive the Conquest II to a top speed of 300 knots (345 mph) at 16,000 feet. At its FL350 service ceiling, normal cruise settles around 259 knots (298 mph).

Range runs to roughly 2,193 nautical miles (2,524 miles) with reserves, enough to cross the continental United States nonstop on most routings. Rate of climb is 2,435 feet per minute, and the aircraft holds a 35,000-foot service ceiling.

Takeoff distance over a 50-foot obstacle at sea level runs about 2,465 feet, with a landing distance of roughly 1,875 feet over the same obstacle. Usable fuel capacity is 475 gallons, burned at around 50 gallons per hour during high-altitude cruise.

Cabin and seating

The pressurized cabin measures 12.8 feet long, 4.6 feet wide, and 4.3 feet tall, noticeably roomier than the unpressurized piston twins the Conquest II replaced. A 6.3 psi pressure differential keeps the cabin at roughly 10,900 feet even at the aircraft’s service ceiling.

Typical corporate layouts seat six to eight passengers in a club or double-club arrangement. Higher-density configurations push seating to nine, plus one or two pilots up front.

Avionics and equipment

Cessna offered its own 1000-series flight control avionics as factory-standard equipment, built around an analog ARC 1000 system. Many buyers instead ordered the optional Collins Pro Line package, and a number of surviving aircraft have since been upgraded with modern glass-panel retrofits.

Cessna 441 Conquest II price and market

Used Conquest IIs typically list between $800,000 and $1.4 million, depending on airframe hours, engine time remaining, and avionics. Well-equipped, low-time examples with recent Collins or glass-panel upgrades trade toward the higher end of that range.

Annual operating costs run in the range of $700 to $900 per flight hour for fuel, maintenance reserves, and inspections on a typical utilization schedule, before crew and hangar costs.

Frequently Asked Questions

How much does a Cessna 441 Conquest II cost?

Used Conquest IIs generally sell for $800,000 to $1.4 million, with well-maintained, upgraded examples reaching close to $1.9 million.

Is the Cessna 441 pressurized?

Yes. The Conquest II has a pressurized cabin with a 6.3 psi differential, keeping cabin altitude around 10,900 feet even while cruising at the aircraft’s 35,000-foot service ceiling.

How many passengers can the Cessna 441 Conquest II seat?

Most corporate layouts carry six to eight passengers. High-density configurations can seat up to nine, plus one or two pilots.

How much fuel does a Cessna 441 Conquest II burn per hour?

At high-altitude cruise near FL350, the Conquest II burns around 50 gallons per hour. Lower-altitude legs and a mix of shorter flights push average fuel burn higher across a typical flying year.