As I look further into x-country speeds and wing loadings (aka handicapping issues), it becomes very apparent that the existing system is very limited. The trouble is that I have yet to come up with a better system other than one that is retrospective ie you apply the handicap after you work out how good the day was (in terms of strength and width of the thermals) and the wing loading of each glider. Then you have some of the intangibles like high performance aircraft being able to sample more thermals (and choosing the best) than lower performance aircraft, or higher performance aircraft being able to stretch across large dead zones where lower performance aircraft need to top up with a ratty climb to make it across. It also appears that various countries have various methods of working out handicaps too. I understand that in Oz it is simply an assumed 4 kt climb, whereas in the UK they have the British Std Thermal (ie takes into account thermal diameter as well as strength). I now have a working prototype of an Excel spreadsheet that compares the performance of two aircraft with known polars for a user defined thermal (core strength, radius and cross section shape). A number of people have seen various stages of development and it appears to agree well with previously published data. A couple of Soaring Aust articles will emerge in due course... Anyway, common sense goes out the window a bit as well when you get any committee. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Phil Sent: Monday, 17 March 2008 6:46 PM To: Discussion of issues relating to Soaring in Australia. Subject: Re: [Aus-soaring] -ASG29 handicaps Handicaps are for mugs. LS1 1.0 LS4 0.94 LS8 0.92 LS10 0.885 This suggests that the LS4 is 6% better than an LS1 but an 18m flapped LS10 is only 5.5 % better than an LS4. Another way to look at it that in a 3 hour race the LS 8 gives the LS4 3 min 36 sec head start. What does this mean? I don't know but handicaps and common sense don't seem to mesh in my mind. Philip ----- Original Message ----- From: Adam Woolley <mailto:[EMAIL PROTECTED]> To: Discussion of issues relating to <mailto:[email protected]> Soaring in Australia. Sent: Monday, March 17, 2008 5:19 PM Subject: Re: [Aus-soaring] -ASG29 handicaps A very safe reply there Bernard, no chance of anyone 'biting' in the below reply.. I just love this bit re: handicaps MultiClass LS10/18m: 0.955 Ventus 2cxa: ??? Ventus 2 18m: 0.955 Lak17/18m: 0.955 DG808 Competition: 0.955 ASG29: 0.955 ClubClass LS10: 0.885 Ventus 2cxa: 0.880 Ventus 2c/cx/18m: 0.885 Lak17/18m: 0.885 DG808 18m: 0.885 ASG29: 0.885
Does this mean that the V2cxa has the upperhand!?! Regards WPP _____ From: [EMAIL PROTECTED] To: [EMAIL PROTECTED]; [email protected] Date: Mon, 17 Mar 2008 10:41:31 +1030 Subject: Re: [Aus-soaring] -ASG29 handicaps Hello Nigel I'm all for fairness and a level playing field but I'm not the person to talk to when it comes to handicapping. I suggest you refer the matter to the handicap committee. Kind regards Bernard Eckey FUTURE AVIATION PTY. LTD. 10 Antigua Grove West Lakes 5021 Adelaide / South Australia Ph/Fax +61 8 8449 2871 mobile 0412 981204 [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of nandrews Sent: Monday, 17 March 2008 8:46 AM To: 'Discussion of issues relating to Soaring in Australia.' Subject: [Aus-soaring] -ASG29 handicaps Hi Bernard, O.K seeing as it looks like the ASG29 "walked all over us" then it should be handicapped accordingly, a walking all over us handicap must be at least 2%? Nigel * Nigel Andrews- * * PO BOX 120, Boonah, Queensland Australia 4310 * INT+(617) 54635670* +(617)54635695 * <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED] * http://www.rf-developments.com <http://www.rf-developments.com/> RF Developments Pty Ltd "A Queensland Company devoted to Research and Development in aviation electronics" **************DISCLAIMER************ The information contained in the above e-mail message or messages (which includes any attachments) is confidential and may be legally privileged. It is intended only for the use of the person or entity to which it is addressed. If you are not the addressee any form of disclosure, copying, modification, distribution or any action taken or omitted in reliance on the information is unauthorised. If you received this communication in error, please notify the sender immediately and delete it from your computer system network. _____ _____ Find a new job on Seek Increase your salary. <http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Fninemsn%2Eseek%2Ecom%2E au%2F%3Ftracking%3Dsk%3Amtl%3Ask%3Anine%3A0%3Ahot%3Atext&_t=764565661&_r =JAN08_endtext_increase&_m=EXT> _____ _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
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