TRACKED AIR CUSHION RESEARCH VEHICLE AERODYNAMIC ANALYSIS

Basic aerodynamic coefficients for the Tracked Air Cushion Research Vehicle (TACRV) are developed by analysis of data obtained during wind tunnel tests of a 1/10 scale model. Vehicle lift and drag are found to be primarily a function of the dynamic pressure to average cushion pressure ratio. Vehicle lift is 8370 lb at 300 mph (11,900 lb in a 60 mph crosswind at that speed), well below the vehicle cushion supported weight of 51,950 lb. Vehicle drag is 7920 lb at 300 mph; drag levels can be reduced 10-15 percent with an aft streamline tail fairing. (Author)

• Supplemental Notes:
  • For further information see also PB-212042.
• Corporate Authors:

  Grumman Aerospace Corp.

  Bethpage, NY  United States 
• Authors:
  • Pierson, J
  • Helgesen, J
• Publication Date: 1971-3

Media Info

• Pagination: 77 p.

Subject/Index Terms

• TRT Terms: Aerodynamic lift; Aerodynamics; Air cushion vehicles; Drag; Experimental vehicles; Guideways; Intelligent transportation systems; Performance evaluations; Pitch (Dynamics); Pressure; Rapid transit; Suspension systems; Tracked air cushion vehicles; Wind tunnels
• Uncontrolled Terms: Pressure distribution
• Old TRIS Terms: Advanced systems; Aerodynamic characteristics; Levitation; Rapid transit railways; Tacrv tracked air cushion research vehicle; Tracked air cushion research vehicle
• Subject Areas: Operations and Traffic Management; Railroads; Terminals and Facilities; Vehicles and Equipment;

Filing Info

• Accession Number: 00039868
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: PMT-B4-R71-06
• Contract Numbers: DOT-FR-00005
• Files: TRIS
• Created Date: Mar 9 1973 12:00AM