Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site bmcg.UUCP Path: utzoo!watmath!clyde!burl!ulysses!gamma!epsilon!zeta!sabre!bellcore!decvax!ittatc!dcdwest!sdcsvax!bmcg!fredc From: fredc@bmcg.UUCP (Fred Cordes) Newsgroups: net.aviation Subject: re: lift Message-ID: <1775@bmcg.UUCP> Date: Wed, 31-Jul-85 12:07:14 EDT Article-I.D.: bmcg.1775 Posted: Wed Jul 31 12:07:14 1985 Date-Received: Sat, 3-Aug-85 06:11:03 EDT Organization: Burroughs Corp. ASG, San Diego, CA. Lines: 13 A small point, but isn't the "action-reaction" lift referred to known as planar lift? Seems to me I've read figures as high as 30% for planar lift. Question: does planar lift account for the low speed effectiveness of fuselage strakes placed near the intakes of high performance a/c? I refer to types like the F-16, F-20, and SR-71 in particular. Is planar lift a significant factor in delta winged aircraft? The most extreme exaple I can think of here is the homebuilt Dyke Delta, which has a lot of wing area for its size. Fred Cordes