Low Cost/Low Noise Variable Pitch Ducted Fan

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,923.00
Award Year:
2005
Program:
STTR
Phase:
Phase I
Contract:
NNL05AB24P
Agency Tracking Number:
040045
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Aerocomposites, Inc.
49 Cambridge Heights, Kensington, CT, 06037
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
060449860
Principal Investigator:
John Violette
Principal Investigator
(860) 829-6809
aciprops@aol.com
Business Contact:
Harrison Griswold
Vice President
(860) 829-6809
aciprops@aol.com
Research Institution:
Georgia Tech Applied Research Corporation
Paul Hart
505 Tenth Street
Atlanta, GA, 30318
(404) 385-6697
Domestic nonprofit research organization
Abstract
ACI proposes a design for a Propulsor (Low Cost/Low Noise Variable Pitch Ducted Fan) that has wide application in all sectors of Aviation. Propulsor hardware of this low cost design can be integrated with a broad range of aircraft engines (e.g. existing piston engines, automotive derivative piston engines, new design turbine engines) for use in new design aircraft. The proposed Propulsor design will incorporate known acoustic design features that support low noise aircraft operation. These features include the use of duct acoustic liners, attenuating harmonic stator vane and rotor blade configurations, and duct designs that direct/condition the exhaust air stream to minimize noise heard by individuals on the ground during aircraft takeoff, landing, and fly-over. The proposed Propulsor design makes possible the fabrication of low cost and low weight variable pitch fan blades and rotors. The new composite blade/retention design avoids the need for heavy and expensive ball bearings and other complex hub pitch change mechanism components.

* information listed above is at the time of submission.

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