Electric Lift Fan for VTOL Air Vehicle

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: F33615-10-C-7072
Agency Tracking Number: 09SB1-0272
Amount: $1,717,950.00
Phase: Phase II
Program: SBIR
Awards Year: 2010
Solitcitation Year: 2009
Solitcitation Topic Code: SB091-014
Solitcitation Number: 2009.1
Small Business Information
Aurora Flight Sciences Corporation
9950 Wakeman Drive, Manassas, VA, 20110
Duns: 604717165
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Heather Brendle
 Program Manager
 (703) 396-6335
Business Contact
 Diana Eichfeld
Title: Contracts Manager
Phone: (703) 396-6329
Email: deichfeld@aurora.aero
Research Institution
The need exists for safe, high power density electric lift fans, especially for vertical takeoff and landing (VTOL) air vehicle applications. The unique approach proposed here uses electric power to drive a brushless ring motor and fan inside a duct. The ring motor is scalable and requires no gearing, linkages, or hot-gas plumbing. The low disk loading compared to turbojets and turbofans minimizes the amount of debris kicked up during operation, yet all rotating blades are enclosed inside a duct eliminating the safety hazard of exposed blades. With the advancements being made in specific power and efficiencies both in power electronics and electric motors, these powerplants have become a viable heavy lift option for VTOL applications. This research focuses specifically on the development of a low inductance brushless DC ring motor coupled with high switching frequency power electronics to be used to drive a light weight lift fan.

* information listed above is at the time of submission.

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