The Stalker Pro uses a tuning fork as well, and was calibrated before we used it for the day. Coincidently We had two guns on this particular set of runs. Both were giving similar results when shooting from the same vantage point. We've been experimenting with moving around to the side of the circle to see what the readings are and naturally it seems to increase the speeds by about 10-15% as we get lower at about a 45 degree angle on the bottom turn. We assume the fastest point of flight is on the downstroke of the circle, but non of us are volunteering to be on the downside of anybody's DS run unless we're wearing body armour inside a Bradley fighting vehicle.
Our records are purely for fun to date. We've been using the list at the http://www.sloperacing.com site as our billboard to post our PB of speeds, and using radar gun readings anywhere in the circle with at least one witness and hopefully video confirmation of the flight (and also to watch ;-). I assume as we gain some notice amounge the plutocrats of the AMA/FAI etc, there will be some additional hoops to jump through to ratify our records, and I think we'd welcome that, but we'd also like to keep the formula very simple so that anyone in any country can 'compete' at this record attempt. We've already seen the German's in the 200mph range, so it's now starting to heat up. Bob Bingham http://www.gliderking.com So, how are > you > >record setters calibrating the radar guns? Can they record a non-linear, > or > >non-parallel path speed? > > The radar guns we've been using (Decatur) have a tuning fork type > calibration. Beyond that, don't know. I'm not sure what the Stalker > uses. > RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.
