Affordable High Power Density Engine Designs for Personal Air Vehicles

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNL05AA41C
Agency Tracking Number: 030130
Amount: $581,960.00
Phase: Phase II
Program: STTR
Awards Year: 2005
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
219 East Enterprize St P.O. Box 7743, Incline Village, NV, 89450
DUNS: 783625692
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Greg Stevenson
 Principal Investigator
 (775) 831-3917
 greg@gsehfe.com
Business Contact
 Greg Stevenson
Title: Business Official
Phone: (775) 831-3917
Email: greg@gsehfe.com
Research Institution
 University of Nevada Reno
 Greg Stevenson
 900 Virginia St. Mech Eng MS312
Reno, NV, 89503
 (775) 831-3917
 Nonprofit college or university
Abstract
Next generation General Aviation (GA) Sport Class air vehicles limited to 1200lbs, represent the first opportunity to overhaul the FAA certification process necessary to manufacture affordable aircraft. With propulsion representing over one-third of the direct manufacturing costs of the entire aircraft, dramatic reductions in aircraft engine costs must be achieved by design, economy of scale, and modern Quality Assurance (QA) manufacturing techniques. Future on-demand intra-urban Personal Air Vehicles (PAV) will require a breakthrough in affordable ($20/hp) propulsion technology capable of STOL or VTOL performance with specific weight ratio above 1hp/lb. Affordable engines of this performance do not exist today. Therefore this propulsion system study proposes to examine 3 innovative concepts of widely different configurations, namely: Advanced Uniflow Supercharged 4-cycle; Advanced Contra-Prop Supercharged 2-cycle; and Free Piston/Turbine designs. The common design philosophy of maximum breathing capacity, unobstructed combustion chamber design, and high mechanical/structural efficiency ensures maximum power density on multi-fuels at the lowest cost. Economy of scale and QA production are approached by innovative/universal design that is aligned with recreational engine power and manufacturing practices.

* Information listed above is at the time of submission. *

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