Accession Number : AD0428951


Title :   STUDY OF FLEXIBLE JET EXTENSIONS FOR GROUND EFFECT MACHINES - PHASE II,


Corporate Author : BELL AEROSYSTEMS CO BUFFALO N Y


Report Date : Nov 1963


Pagination or Media Count : 81


Abstract : The results of a test program on flexible jet extensions, or trunks, for Ground Effect Machines are presented. Current state-of-the-art in the use of trunks is discussed, and the effect of trunks on SKMR-1 is outlined. A whirling arm test rig facility was used to test model trunks under conditions simulating those of a full scale machine. The facility consisted of a selfpowered whirling arm of 20-foot radius to which was attached a 4-foot diameter working GEM model. The Annular jet GEM model designed and constructed under this contract provided for attachment of a full set of circular trunks of 6 in. height. Several obstacles, designed to produce effects on the trunks simulating full scale obstacles, were placed on the test track. Two sets of trunks of identical design but different materials were tested to destruction. Material differences were noted and design improvements suggested. Future use of this facility should provide valuable design information and useful material evaluation. (Author)


Descriptors :   *GROUND EFFECT MACHINES , EXTENDABLE STRUCTURES , TEST FACILITIES , MATHEMATICAL MODELS , BONDING , WEAR RESISTANCE , MODEL TESTS , GLASS TEXTILES , SYNTHETIC RUBBER , TERRAIN , EQUATIONS


Distribution Statement : APPROVED FOR PUBLIC RELEASE