---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Wed 04/29/09: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:45 AM - Re: What a glide ratio! () ________________________________ Message 1 _____________________________________ Time: 11:45:36 AM PST US Subject: RE: AeroElectric-List: What a glide ratio! From: For anyone who has flown to Happy Valley they know the hills around there require 2000+ for general MSA around the field. Below that you start bumping into things. That would mean he could not have sunk below 2k until he was over the ridge right in front of the field. As I recall the best approach to stay clear of pot holes is from the NW which follows the contour of the valley. Again, impossible to determine at night. IAF is charted at 4300. Even if you don't hit something below 2000 in this area, I'll guarantee you'll never see the field. Hell of a glide to travel that far and still make it over the field ridge above 2000. From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Ed Anderson Sent: Tuesday, April 28, 2009 9:51 AM Subject: RE: AeroElectric-List: What a glide ratio! I once glided 12 statue miles in an RV-6A from 9500 feet, engine totally out, prop not windmilling at a nominal indicated airspeed of 87 mph. I had two choices both 12 miles distant, one of which required a 120 deg turn to the left - but, it was downwind and the one I selected (that Garmin 195 with its nearest button repaid all of its cost on that day). Approx 8 - 9 minutes later I arrived off the upwind end of the runway with sufficient altitude to do a 360 deg turn and two hard "S" turns to bleed off altitude. Still crossed the fence around 100 mph but having a 4000 ft runway made that a non- factor. As best I could calculate from the altitude, distance, etc I came up with a glide ratio of 9.8:1. Slightly short of the 10:1 advertised by Van, but then my glide speeds were undoubtedly not optimum over the entire period. However, didn't collect wind data other than knowing it was downwind. That was my experience. No damage to anything but my nerves and seat cushion. Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm ________________________________ From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Paul McAllister Sent: Monday, April 27, 2009 8:39 PM Subject: Re: AeroElectric-List: What a glide ratio! Hi all, Well I am curious as to what the glide ratio actually is. On listening to the tapes he was 18 miles out at 7000 feet. The field elevation was 1500 feet so that gave him 5500' to play with. According to my rough calculations that is about 18:1 which seems pretty high. Tail wind perhaps ? >From listening to the tapes everyone kept there cool, quite an impressive display of airman ship. Paul http://www.matronics.com/Navigator?AeroElectric-List http://forums.matronics.com http://www.matronics.com/contribution __________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-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/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-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.