[Aus-soaring] Soaring Australia November
A reminder that articles for inclusion in the November issue of Soaring Australia should reach me by September 25. Regards Anne [EMAIL PROTECTED] Keith Dixon and Anne Elliott (GFA Sub-editor Soaring Australia magazine) PO Box 189 Narromine NSW 2821 Australia Email: mailto:[EMAIL PROTECTED] [EMAIL PROTECTED] Web: www.ourafricansafari.com.au www.vintageglidersaustralia.org.au ___ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
Re: [Aus-soaring] Soaring Australia November
Good morning Emilis and Rachel, I came in from mowing the lawn and flicked on the computer. I havent gone back yet. Your white paper is facinating reading. I have read it twice and will read it again and again. Brilliant. Now all we need is for people to read it with the same intensity and with an open mind to what may happen and what is acheivable. Congratulations to both of you. I will be in touch. Ian P - Original Message - From: Emilis Prelgauskas [EMAIL PROTECTED] To: Discussion of issues relating to Soaring in Australia. aus-soaring@lists.internode.on.net Sent: Wednesday, September 17, 2008 8:43 AM Subject: Re: [Aus-soaring] Soaring Australia November The attached white paper was available to interested parties at the September Adelaide glider pilots gathering On Wed, 17 Sep 2008 08:04:15 +1000, Anne Elliott wrote: A reminder that articles for inclusion in the November issue of Soaring Australia should reach me by September 25. ___ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring ___ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
Re: [Aus-soaring] 180 degree turns - teardrop
To throw the cat amongst the pigeons. Here are some links with attached research, regarding the best way to do a 180 (if required). Any comments or disagreements? OK, if people want to poo-poo this, please provide a rational and reasoned explanation why (i.e. use a scientific and objective argument). http://www.nar-associates.com/technical-flying/impossible/possible.html http://jeremy.zawodny.com/flying/turnback.pdf Conclusions A simplified model of the turnback maneuver after engine failure during the take-off climb segment has been developed. The model shows that optimum conditions for returning to the departure runway result from climbing at Vmax , executing a gliding turn through a 190-220deg heading change, using a 45deg bank angle at 5% above the stall velocity in the turn using a teardrop shaped flight path. P.S. Thanks to Daryl McKay for providing these links. ___ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
Re: [Aus-soaring] 180 degree turns - teardrop
I now know why I prefer to fly gliders more than tugs/power. :-) A very interesting article: note he says sailplane pilots practise at 200 feet: not me! PeterS /What about safety? Can the average pilot successfully complete this maneuver. The simulator study indicates that training makes this maneuver reasonably safe. This should not be surprising. The turnback maneuver is well known to sailplane pilots. It is the standard maneuver when the tow rope breaks. For a sailplane, a typical starting altitude is 200 feet. Sailplane pilots are required to train for this maneuver and to perform the maneuver to successfully complete the check ride for the rating. Why not power pilots? Power pilots are required to train for and to demonstrate level stalls, departure stalls, approach stalls, forced landings, etc. to qualify for the private pilot rating. There's a lot of hostile terrain at the end of the runway, e.g., at island airports, mountain valley airports, city airports and almost any airport at night. If the engine quits on climb out, frequently, the best choice of terrain for a forced landing is behind you, on the runway. Let's train to be able to use it. / Texler, Michael wrote: To throw the cat amongst the pigeons. Here are some links with attached research, regarding the best way to do a 180 (if required). Any comments or disagreements? OK, if people want to poo-poo this, please provide a rational and reasoned explanation why (i.e. use a scientific and objective argument). http://www.nar-associates.com/technical-flying/impossible/possible.html http://jeremy.zawodny.com/flying/turnback.pdf Conclusions A simplified model of the turnback maneuver after engine failure during the take-off climb segment has been developed. The model shows that optimum conditions for returning to the departure runway result from climbing at Vmax , executing a gliding turn through a 190-220deg heading change, using a 45deg bank angle at 5% above the stall velocity in the turn using a teardrop shaped flight path. P.S. Thanks to Daryl McKay for providing these links. ___ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring ___ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
Re: [Aus-soaring] 180 degree turns - teardrop
Don't see much to argue about. They did the math. Although there's one little thing I'd like to check. They don't think the optimum is 60 degrees though. Mike At 11:38 AM 17/09/2008, you wrote: To throw the cat amongst the pigeons. Here are some links with attached research, regarding the best way to do a 180 (if required). Any comments or disagreements? OK, if people want to poo-poo this, please provide a rational and reasoned explanation why (i.e. use a scientific and objective argument). http://www.nar-associates.com/technical-flying/impossible/possible.html http://jeremy.zawodny.com/flying/turnback.pdf Conclusions A simplified model of the turnback maneuver after engine failure during the take-off climb segment has been developed. The model shows that optimum conditions for returning to the departure runway result from climbing at Vmax , executing a gliding turn through a 190-220deg heading change, using a 45deg bank angle at 5% above the stall velocity in the turn using a teardrop shaped flight path. P.S. Thanks to Daryl McKay for providing these links. ___ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring Borgelt Instruments - manufacturers of quality soaring instruments phone Int'l + 61 746 355784 fax Int'l + 61 746 358796 cellphone Int'l + 61 428 355784 Int'l + 61 429 355784 email: [EMAIL PROTECTED] website: www.borgeltinstruments.com ___ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
Re: [Aus-soaring] 180 degree turns - teardrop
They don't think the optimum is 60 degrees though. Yep, I found that interesting too. ___ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
