---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Fri 12/30/11: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:10 AM - Re: RV7-List: Re: Dynon Skyview Airspeed Calibration... (M. Marcotte) ________________________________ Message 1 _____________________________________ Time: 11:10:33 AM PST US From: "M. Marcotte" Subject: RV8-List: Re: RV7-List: Re: Dynon Skyview Airspeed Calibration... I think one can calculate from the GPS numbers that you had a 14 MPH (approx) wind from the WNW and you were doing 182 TAS. Your IAS would appear to be 12 MPH too high. From: Matt Dralle Sent: Thursday, December 29, 2011 10:33 PM rv7-list@matronics.com ; rv10-list@matronics.com Subject: RV7-List: Re: Dynon Skyview Airspeed Calibration... At 07:39 PM 12/26/2011 Monday, you wrote: --> RV-List message posted by: Matt Dralle Dear Listers, I've been flying the new 10" Dynon Skyview in the RV-6 for a few weeks now and it seems like the airspeed is reading maybe 10mph fast. The GS always reads 10mph or more slower than the True airspeed, no matter which way I fly with respect to the current wind. Looking through the configuration options on the Skyview, I'm not seeing parameters to calibrate the airspeed. If the airspeed were *slow* compared to the GS, I could envision making adjustments to the Pitot tube to get it in better alignment with slipstream. But *fast* is a head scratcher. If there's no electronic configuration parameters to adjust, what do you do? Are there Pitot line "attenuators" like for RF in coax? ;-) Matt Listers, I went flying tonight in the RV-6 around sunset and took some airspeed numbers flying the four points of the compass. I let each direction normalize for about 2 minutes before taking the readings. I've still got my little black-tape washer deals on the static ports that I detailed in a previous email. Do these numbers make any sense? I set the altimeter to 30.15 (KLVK ATIS). I compared the Dynon altitude with the Garmin 696 GPS altitude. The Dynon was high by 100 ft. I used the Dynon altitude adjustment to set it to match the GPS (-100ft). The readings above were after this adjustment. - Matt "Red Dawg" Dralle RV-8 #82880 N998RV "Ruby Vixen" http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap... RV-6 #20916 N360EM "The Flyer" http://www.mattsrv6.com - Matt's RV-6 Revitalization Log Status: 48+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv8-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV8-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rv8-list Browse Digests http://www.matronics.com/digest/rv8-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.