Accession Number:

AD0614616

Title:

CHARACTERISTICS OF A RECTANGULAR WING WITH A PERIPHERAL JET IN GROUND EFFECT, PART III,

Descriptive Note:

Corporate Author:

TORONTO UNIV (ONTARIO) INST FOR AEROSPACE STUDIES

Personal Author(s):

Report Date:

1964-08-01

Pagination or Media Count:

80.0

Abstract:

Lift, drag, and pitching moment were measured on a rectangular wing with a peripheral jet in ground effect for three angles of attack, three heights above ground, and for a range of forward speeds necessary for take-off calculations. Furthermore, nine configurations were tested in this fashion - each with different jet angles and different ratios of L.E. to T.E. jet strengths. Whereever possible, procedures were automated and on-line data reduction was used. Some flow visualization tests were made on specific configurations. The results were used to study an integrated lift and propulsion system for air-cushion take-off and landing. These calculations showed little advantage to be gained from using variable jet strengths and angles during take-off at constant height when compared to fixed configuration results. The latter used angle of attack, or diversion of thrust from the cushion to direct forward thrust as means for keeping the height constant. A simple take-off procedure in which the height is allowed to increase naturally, led to slightly poorer results, but all the takeoff procedures studied provided short-field performance. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE