----- Original Message ----- From: "Mark Langford" <n5...@hiwaay.net> To: "KRnet" <kr...@mylist.net> Sent: Friday, October 21, 2005 7:11 PM Subject: Re: KR> Gear legs and belly-boards
Mark; I had the same problem with my airspeed indicater when I first flew N54PB back in 1991. I too had installed the static and pitot tube as per instructions in the manual. The resulting readings were way off. The readings changed drastically when changing gear configuration, ie up or down. I experimented with several different locations and finally installed the pitot tube on the top of the veritcal stabilizer and left the static port open inside the cabin. I calculate that I have a error of 5mph due to prop wash, I can live with that and I don't have to worry about someone (including myself) accidently snagging the pitot tube during a walk around or crawl underneath around. FYI Thanks Parley Byington N54PB Henderson Nv par...@anv.net >> Something else I determined yesterday is that propwash must be the problem > with my static system, not proximity of the wing or tire. I put a 10" > extension on the static tube and it made no difference. Readings were way > off, so I pulled the hose off after I leveled off, which opened the static > line to the cockpit interior, and everything started reading more > accurately. I did a little sanding on my wing, and when I fired up the > engine it blew the dust off 2' out from the stub wing junction. My > static/pitot tube is at the stub/outer wing junction, just like the plans > call for, but it ain't working for me! > > Mark Langford, Huntsville, Alabama > see KR2S project N56ML at http://home.hiwaay.net/~langford > email to N56ML "at" hiwaay.net > -------------------------------------------------------------- > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html
