Preliminary Propulsion and Lift-Power Tradeoff for a Large Surface Effect Vehicle

• Main Author: Muench, Rolf K
• Other Authors: DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER ANNAPOLIS MD
• Format: Text
• Language: English
• Published: 1973
• Subjects: Surface Effect Vehicles & Amphibious Vehicles; *GROUND EFFECT MACHINES; ARCTIC REGIONS; CARGO; COSTS; DRAG; EFFICIENCY; EQUATIONS; FUEL CONSUMPTION; LIFT; POWER; PRESSURE; PROPULSION SYSTEMS; RANGE(DISTANCE); ROAD TESTS; THRUST; VELOCITY; WATER; WEIGHT; *AIR CUSHION VEHICLES; *SURFACE EFFECT VEHICLES; Arctic; Hump The
• Online Access: http://www.dtic.mil/docs/citations/AD0913413; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0913413

To determine the desirable speed and cushion pressure operating region of large surface effect vehicles, a propulsion and lift-power tradeoff study has been made for both overland and overwater operation. In addition, range has been examined as it is related to the associated fuel fraction and cargo-carrying capacity. The power tradeoff study examines the effect of the various drag components and efficiencies at the minimum power. The cargo- carrying study considers the effect of the available payload area and payload weight as a function of cushion pressure. The thrust margin study examines the impact on power requirement for the low-speed wave drag hump. The results generally indicate that cargo-carrying considerations restrict the maximum cushion pressure due to space and the maximum velocity due to cost consideration, while the overwater thrust margin study restricts the vehicle to low cushion pressure and high maximum velocity capability. Report on Arctic Surface Effect Vehicle Program.