Transonic Flutter Investigation of a Cantilevered, Aspect-ratio-4, 45 Degree Sweptback, Untapered Wing with Three Different Pylon-mounted External Store Configurations
Author | : Charles L. Ruhlin |
Publisher | : |
Total Pages | : 35 |
Release | : 1957 |
ISBN-10 | : OCLC:724690187 |
ISBN-13 | : |
Rating | : 4/5 (87 Downloads) |
Book excerpt: A brief, exploratory investigation has been made of the transonic flutter characteristics of a cantilevered, aspect-ratio-4, 45 degree sweptback, untapered wing with three different pylon-mounted external-store configuration. For stores located near the midsemispan and weighing about 0.7 of the semispan wing, the flutter speed was not changed when the store center of gravity was moved from 38 to 12 percent of the chord. The flutter speeds for these two stores were from 14 to 19 percent less than those obtained with the wings alone at subsonic speeds. The rate of rise of flutter speed with Mach number in the low supersonic range was about the same for the wing with stores as for the plain wing.