One of SWB’s newest innovations is a Sidewinder configuration Miniature Turboprop Engine (MTE).It utilizes a highly developed gas producer, with a fine lineage of previously successful SWB Turbines turbojet engines (since 1987), SWB’s U.S. Patents (granted 1998), and low-cost production potential (because it’s rotating components are derived from the commercial turbocharger/vehicle industry). SWB Turbines has proven that its customers, including the Army, can benefit from the well-developed turbocharger turbine and compressor component base. The U.S.and other major countries have cultivated a major dependence on truck transportation, transitioning from trains, with increasing dependence on turbocharged diesel power plants. This is the backbone of the U.S. Transportation System. Turbocharged diesel engines have become the standard through a wide range of horsepower, resulting in very high savings leverage for miniature turbines, select super alloys and advanced rotor aerodynamic performance.

Peak Thrust 460 lbf, SLS

99.6 hp, SLS 

40 lb (gas generator and gearbox)

Within 14”x14”x19”

40 Amp, 14V, < 4000 RPM

Installed vehicle speeds from 34 kts to 150 kts

0.973 lbm/hp-hr SFC w/ 1 stage compressor, over 2400 fpm climb, over 108 nm range with 8.5 gal fuel

Characteristic

Derived Requirement

Input Shaft Speed

58,000 RPM

Output Shaft Speed

4000 RPM (for Vess 3 blade custom prop)

Output Shaft Torque@full throttle, Max thrust

127.63 ft-lb

Gearbox Weight w/o Free-turbine

27 lb

Free-turbine section weight

5 lb

Input Shaft Diameter

0.75”

Gear Ratio

14.5:1

Cooling/Lubrication

Bleed Air with recoverable oil mist

Gearbox Size (without free-turbine section)

10” Diameter, 8 inch length

Propeller Flange Shaft Diameter

2” Diameter, SAE-No. 2, ARP-502 80 mm

Variable Pitch Propeller Weight

27 lb (spinner is additional 4 lb, governor is 2.6 lb)