Quiet Turbofan Propellers for Twin Otters

• Astoundingly quiet and vibration-free inside and out, reducing fatigue on crew, passengers and airplane.
• Maintains or exceeds original equipment performance levels.
• Hot-prop de-icers provide low-maintenance, high-reliability de-icing capabilities
• Reduce maintenance costs and downtime—no need to remove prop at 3000 hr/5 yr. TBO.
• Proved by millions of trouble-free hours in service.
• Raisbeck Quiet Turbofans pay for themselves in fuel savings alone, and make you a better neighbor at your airport.

• Advanced technolgy design incorporates hi-lift airfoils and four hi-twist blades with smaller diameter.
• Manufactured by Hartzell Propeller using computer NC techniques.
• Increase engine inlet ram air and cooler engine operating temperatures.
• Field-proven lightweight aluminum hub with all adjustments external to hub.
• Fully tested and approved by the FAA, Pratt & Whitney of Canada Ltd., Woodward Governor Co., BF Goodrich, Hartzell Propeller Products, Inc. and Raisbeck Engineering, Inc.