Download or read book A Technique Utilizing Rocket-propelled Test Vehicles for the Measurement of the Damping in Roll of Sting-mounted Models and Some Initial Results for Delta and Unswept Tapered Wings written by William M. Bland and published by . This book was released on 1950 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: A free-flight test technique utilizing rocket-propelled test vehicles with which the damping in roll of sting-mounted wings and wing-fuselage combinations can be obtained over the high subsonic, transonic, and supersonic speed range is described and some results for delta and unswept tapered wings are presented. Initial results compare well with those obtained in supersonic wind-tunnel tests. Results for all of the configurations tested show that damping in roll was maintained throughout the Mach number range investigated and that subsonic damping-in-roll agreed with theoretical values within experimental accuracy. In the lower supersonic region these results differ from the values predicted by linearized flow theory; however, the agreement improved with increasing Mach number. Increased section thickness decreased the damping in roll of the delta wings throughout the Mach number range investigated.