Langford, you may be fast but you can't leave me as fast as you used too. Ha
Mark Jones (N886MJ) Wales, WI Visit my web site: www.flykr2s.com E-mail: flyk...@wi.rr.com ----- Original Message ----- From: "Mark Langford" <n5...@hiwaay.net> To: "KRnet" <kr...@mylist.net> Sent: Wednesday, June 06, 2007 2:57 PM Subject: KR> not quite so fast! > NetHeads, > > For almost a year I'd been thinking that my top speed was something like > 168 > mph TAS, and now with the 3100cc engine, 178 mph TAS. But week before > last > I was out flying around over Guntersville Lake on a very calm day and > thought I'd do a quick two way wide open GPS run up and down the river. > The > result was only 149 mph...with exactly the same number in both directions > (no math required!). At these speeds, the airspeed indicator is very > accurate, at least I'd thought so up until now. This really had me > buffaloed, as I was so sure that all my testing couldn't have been off > that > much. > > So last weekend I flew up to middle Ohio to a Scirocco thing, and there > was > still this disparity between the GPS and the ASI, and the laptop's GPS > agreed with the Lowrance GPS, so it's 2:1, but the EIS agrees with the ASI > perfectly, so now it's 2 to 2. What's up with this...static/pitot has > been > lying to me or what? Then I was looking at pictures that I took of my > laptop screen on the way back from Ohio, and noticed the letters "kts" > after > the speed on the display. Then I remembered that a few weeks ago I > updated > both the firmware on the Lowrance, and the software on the laptop, and > they > were both reset back to the default of knots rather than mph! Multiply > 149 > mph x 1.15 and correct for TAS and now we're close to 178. I'm a happy > boy > once again... > > Mark Langford, Huntsville, AL > mail: N56ML "at" hiwaay.net > website: www.N56ML.org > > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > Post photos, introductions, and For Sale items to > http://www.kr2forum.com/phpBB2/index.php > please see other KRnet info at http://www.krnet.org/info.html
