Turbine Air

Short Take Off...Quick Climb...Fast Cruise Speed

Under the Cowl

The Pratt & Whitney PT6A, used for the Royal Turbine conversion, is an industry workhorse.

For nearly four decades, the PT6A has set the industry benchmark for reliability and dependability. Ranging from 580 to 1,940 shaft horsepower, it offers the best value available, along with simplicity of design, ease of maintenance, and efficiency of operation.


West Pacific Air, LLC is proud to announce a new project for the Beechcraft B36TC aircraft, which includes retrofitting a Pratt & Whitney PT6A-21 engine. Four years of market research and product development has led to certification and production of this new Bonanza project. This entry level, step-up turbine aircraft is perfect for those wanting a fast, economical, reliable turbine aircraft.

While the Beechcraft B-36TC is not a pressurized aircraft, it is the best non-pressurized platform for the PT6 turbine engine. Beechcraft owners love their aircraft, the Beechcraft quality, and they deserve the performance, economy, reliability and service that West Pacific Air, LLC offers with the Pratt & Whitney PT6A-21 engine.

Since 1990, Rocket Engineering - the modification company - has STC'd and converted over 200 Mooney aircraft with 300+ hp Continental engines. In the last eight years, we have converted an additional 200 Malibu/Mirage aircraft with Pratt & Whitney PT6A engines. Our STC experience with past projects, coupled with continuing upgrades to current product lines, has enabled our company to develop the expertise to install the PT6A-21 engine in Beechcraft aircraft, all the while maintaining Beechcraft's high quality standards.

The most frequently asked question concerning the conversion is "Why install a turbine engine in a non-pressurized aircraft?" The answer is simple - The Pratt & Whitney PT6A-21 engine is several times more reliable and much more user friendly than a piston engine. It is a high altitude, high performance engine with no heating nor shock cooling problems. The A36, A36TC, B36TC and Baron 58 all have the same interior fuselage and can all fly in the flight levels, yet none of them are pressurized.

If you could fly 60 kts faster, climb three times as fast, and on less fuel than a stock Bonanza, with an engine several times more reliable, why wouldn't you?