----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----One of the things that we can't forget -- first look under the airplane, not far away. Some people have not even realized that an airport is directly under them when the fan stopped, and tried to glide to a field in the distance. Look down first, not outward.
Syd
Ed Burkhead wrote:
----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----Matt Lockwood said:I cant do that kind of math in my head when myengine is out and I'm looking for a landing spot/trying to restartMatt, Good point. The trick is this: Once you KNOW your best glide ratios (from doing real TESTS), you get someone to do a little trigonometry for you and figure what angle below the horizon that gives. With a little assistance, you find that you could do something like this: If I hold my hand a certain distance from my eye, I can glide to anything closer than one pinky-finger distance from the horizon. Then you fly around practicing the one-pinky-finger measurement on nice days. When the fan stops, you already know what your maximum glide distance looks like and you KNOW you can reach anything closer (with wind allowance like Jeff Lewis described). Having made your measurements and practiced them ahead of time, if the fan stops you have no fuss. You just look around the choices of fields and pick the best one. No panic. How many times have you read about some idiot who lost control of the plane and stalled after running out of fuel? If you've pre-decided on your glide speed and know your glide range, you have no "need" to panic - you just set up your glide, pick a place and head for it and, time allowing, troubleshoot your problem. Ed Burkhead http://edburkhead.com/ [EMAIL PROTECTED] -----Original Message----- From: Matthew Lockwood [mailto:[EMAIL PROTECTED]] Sent: Thursday, April 24, 2003 6:31 AM To: Ercoupe Hangar Flying Subject: [COUPERS-FLYIN] Re: Digest list: Ercoupe Hangar Flying ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- Gee, Syd, I cant do that kind of math in my head when myengine is out and I'm looking for a landing spot/trying to restart.. :) -Matt N2864H-----Original Message----- From: Sydney Cohen [mailto:[EMAIL PROTECTED]] Sent: Wednesday, April 23, 2003 9:55 PM To: Ed Burkhead Cc: Coupe-List Subject: Re: [COUPERS-FLYIN] Re Glide ratio ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- It looks like I finally get a chance to correct Ed. That's really hard to do. The formula for the area of a circle is pi x R squared. If the radius of our gliding circle is 10 miles, we square that, giving us 100, and multiply that by pi, 3.14159, which gives us a circle of 314.159 square miles to land in. We have a fairly good chance of finding a decent spot in that many square miles. Syd Cohen============================================================================ == To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers/ ============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers/ .
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