Compare the fixed costs, variable cost, and performance of Bell 222UT to over 500 jets, turboprops, helicopters and piston aircraft, with accurate data from Conklin & de Decker.
The Bell 222UT is a Bell 222B with a skid gear in place of the retractable wheeled landing gear used on the 222B. In addition, in the space formerly occupied by the landing, the 222UT has additional fuel tanks to provide increased range. The change in gear was prompted by pressure from a segment of the marketplace that was looking for less complexity and more range. The additional fuel provided about 75 miles of additional range and addressed a significant shortcoming of both the 222A and 222B.
The Bell 222 had its genesis in the early 1970s when it became clear that there was a demand for a medium twin-engine turbine helicopter for the offshore and corporate market. Bell, among others, launched a series of design studies that resulted in a decision to launch the Bell 222 in 1974. The subsequent design represented many firsts for Bell. It was Bell's first helicopter designed from scratch for the civilian market; it was not based on any military design; it had a retractable, wheeled landing gear; its rotor system design was the first to depart from the teetering rotor developed in the 1940s by Art Young; and it used a newly developed engine, the Lycoming LTS 101. On paper this was a great engine, with a high power-to-weight ratio and modest fuel consumption. Unfortunately, even in the upgraded form used on the Bell 222B, it proved to be less reliable than the customers expected and this was one of several factors, including a serious recession in the helicopter industry, which severely limited the market potential for this helicopter.
The Bell 222UT, like the 222UT, uses a two-bladed rotor attached to the hub with elastomeric bearings for the flapping, lagging and pitch change motions. Compared to the 222A rotor, the diameter of the 222UT rotor is 2.25 feet greater. This allowed a substantial increase in takeoff gross weight. The upgraded main transmission continued use of the “nodamatic” suspension system to reduce vibration levels. The engines used on the Bell 222UT are the Honeywell (Lycoming at the time) LTS 101-750C1. A two-bladed tail rotor mounted on an extended tail boom (compared to the 222A) provides directional control. The cabin provides two compartments and was not changed from the cabin of the 222A. The pilot compartment seats two and the passenger cabin seats up to eight. The fuselage is made of conventional aluminum alloys. The passenger cabin is available in three basic configurations. One is a corporate interior with two comfortable seats facing aft and a three-place bench facing forward. The second, the utility configuration, has three forward-facing seats rows (two with three seats and one with two seats). The third configuration is for EMS operators. This configuration puts two stretchers, two medical attendants and medical gear in the cabin. Single and dual pilot IFR certification was available as an option.
Development of the Bell 222UT was initiated in 1982 and the first flight of the Bell 222UT prototype occurred later that year. Certification to the standards of FAR 29 was obtained in 1983, as was IFR and Category A certification. Approximately 75 Bell 222UTs were produced during this aircraft’s production run from 1983 to 1987.
Honeywell Engines LTS-101-750 2