Detecting a good tip catch is going to be an interesting engineering problem as the plane never really stops flying. However I agree, it is an awesome idea. ---------- Original Message ----------- From: Oleg Golovidov <oleg.golovidov@xxxxxxxxx> To: ciam-f6-wg@xxxxxxxxxxxxx Sent: Thu, 30 Jul 2009 17:27:20 -0400 Subject: [CIAM-F6-Working_Group] Re: HTG final task options > I really like this idea. Onboard automated timing system, especially > with RF transmission, would be immensely helpful in all RC soaring > competitions. If this is ever implemented, it would be a huge > positive change. > > One small gotcha - midair collisions can be flagged as an end of the > flight. Not a big deal, just something to consider for the developers. > > > 1)- Inboard, autonomous timing system > > 2)- inboard communication/transmission system > > 3)- Display equipment > > > > 1) I am thinking at a system able to detect the moment of launch and > > landing. For F6D (or F3K) I believe it can be done with accelerometers, > > such components are nowadays rather inexpensive and can be found in most > > hand-held GPS, PDA etc. With the proper software, the moment of launch could > > be detected by the sudden reduction of lateral acceleration while landing > > would be detected from the longitudinal acceleration component. > > > > 2) The inboard recorded time could be transmitted or read after flight by a > > suitable sensor, or (for WAG-style use) the start/land signals could be > > transmitted in real time to a central computer in which a suitable piece of > > software would actually compute the times > > ---------------------- > Oleg Golovidov > Raleigh, NC > This list set up for FAI/CIAM F6 Working Group. > Archive of the list available at : ciam-f6-wg@xxxxxxxxxxxxx ------- End of Original Message ------- This list set up for FAI/CIAM F6 Working Group. Archive of the list available at : ciam-f6-wg@xxxxxxxxxxxxx