Thanks Ed, very interesting information. Seems like I nailed it pretty well back on 24 March 2000 if your information is correct. As for the SR-71, I recall that it expands up to 12 inches longer when at speed and it's about 104 feet long (I believe). Dave English Oceanside, California To UNSUBSCRIBE from the 'meteorobs' email list, use the Web form at: http://www.tiacdot net/users/lewkaren/meteorobs/subscribe.html