User contributions for Freeflight1

27 August 2012

• 18:1018:10, 27 August 2012 diff hist +475‎ Model aircraft ‎ →‎Rubber and gas propulsion

18 December 2007

• 00:2400:24, 18 December 2007 diff hist +2,792‎ Free flight (model aircraft) ‎ Emphasis that free flight aircraft have no NEED for outside control, rather than just lacking it. Explanation of the need for therrmal detection. Rationale for the three main classes and some of the d