Further to my earlier posting, I recall that something similar happened to one of our Ozzie pilots in a pre-worlds in Italy, quite some years ago. I may not have the story exactly right, but as I understand it, the ship he was flying had a tail wheel, and after he had done his ground run up the slope, the ship just rolled backwards until he stopped in a creek - sorry, stream. Unfortunately this resulted in - relatively minor?? - damage to the aircraft, which however precluded any further flying in the contest. Simon, Have I got the story right, and if so, is there any comment that you can add with 20/20 hindsight?
Of course, for relative newcomers to the sport, what Byars & Holbrook, were really warning about, was avoiding running into unexpected obstacles, on the ground run. The possibilities are almost endless! You must understand that outlanding paddocks can vary from something better than the home airfield, to rock-filled pocket handkerchiefs, inevitably filled with potentially dangerous ground features masked by high grass! Here are some possibilities that I have heard about, that might spoil your day. No doubt the forum members can add to this list. a.. Running into a hidden tree stump b.. Running into rocks. Depending on the size of the rocks, this can result in damage to the fuselage, damage to the wings, or maybe a total write off of the glider. I recall a story where a pilot reported that he had run into a rock. An eye-witness to the event - from above, in another glider - verified the story: "Yep, he ran into a rock - it is called the Earth!" c.. Running into (relatively), shallow drains, that will nevertheless, rip your undercarriage out. d.. Running into electric fences. e.. Running into a patch of thistles. f.. Running into a star picket, that the farmer has placed in his paddock to mark an area for future weed eradication. g.. Running into a (somewhat pockmarked), rabbit warren: In Nth America - a Badger hole. Gary ----- Original Message ----- From: [email protected] To: Discussion of issues relating to Soaring in Australia. Sent: Sunday, March 17, 2013 2:42 PM Subject: Re: [Aus-soaring] Bad air/Outlandings As I remember, it went more like this ..."NEVER FLY THROUGH THE SAME BAD AIR TWICE!" which gives the advice a whole new depth of meaning, seeing that this was one of the few pieces of information in the book - and the book is full of useful information - to be so notated, and is the ONLY axiom to appear TWICE! Here are two more from the same book: SPEED UP IN SINK - SLOW DOWN IN LIFT! ;and (in an outlanding) STOP AS SOON AS POSSIBLE AFTER LANDING! Members of this forum can no doubt tell many a story re the last axiom. Here is one that partly fits - but with a twist! Flight No 224, in my log-book, 01/03/1978, ES 60b GTJ. X/C training was being conducted on the day in the GCV's two-seater aircraft fleet. I decided to tag along in the Super Arrow. A task was set into the hills to the SW of Benalla, but unbeknown to me the task for the two-seaters was changed, as the weather was not as predicted. So off I set.The first leg was to Strathbogie, and then on to Euroa. As can be imagined, the first leg did not go well for me, and it was soon necessary to pick a paddock around Boho South. The options were a bit limited, as the countryside was fairly steep. Therefore in accordance with best practice, I choose to land uphill into my selected paddock. The landing went quite well, up to and including touchdown, and I can say with certainty that I did stop quickly - possible no more than 10 or 20 m - which fitted the 3rd maxim above, quite well. However I was totally unprepared for what happened next. No sooner had the glider stopped, than it began to accelerate - backwards down the slope! For pilots who may be unfamiliar with the type, let me say that these aircraft are fitted with a spring steel tailskid rather than a wheel. This was the thing that saved me, as the tailskid dug in, and I then quickly came to a stop, with no damage done. One further thing. Ed McKeough flew out to check the situation. How was it possible for him to land a Pawnee, if the paddock was so steep? Well the truth of the matter was that he landed on the airstrip - which I had totally missed seeing -in an adjacent paddock! I could have got an easy aerotow out of there, but instead had to cope with a bunch of noisy fellow glider pilots, and provide the mandatory slab of retrieve beer! Cheers, Gary ----- Original Message ----- From: Mike Borgelt To: Discussion of issues relating to Soaring in Australia. Sent: Sunday, March 17, 2013 11:38 AM Subject: Re: [Aus-soaring] Intermediate/short term goals At 06:57 PM 16/03/2013, you wrote: On 15/03/2013, at 5:12 PM, Adam Woolley wrote: Have you got any rough 'rules of thumb' that you use in order to decide if the short term deviation is worth it or not? Better air within 30 degrees either side of track is worth deviating for. It is more complicated than that. Keep in mind the extra distance you would fly to get to the next turnpoint. if you end up abeam the turnpoint by flying a track 30 off the direct one you will fly 50% further Also plot the achieved cross country speed vs the average climb rate. It is not a linear function. It may be worth greater deviations from track on weak thermal days than strong ones. You can get these numbers (and a lot of other interesting information) using a ruler, from the polar plotted on a piece of graph paper and a few simple geometric constructions. Your highly trained and experienced GFA instructor should have explained this to you before you try to go cross country. (Pig squadron on the grid, ready for first launch). Yes, staying out of sink is very important. Most of us do it poorly. It is extremely important when trying to center weak and broken thermals which is why I like a vario with a sink sound as it provides full information on the bad air as well as the good air while doing this. Byars and Holbrook said this in their book "Soaring cross country " 40 years ago - "never fly through the same bad air twice". Mike _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring Borgelt Instruments - design & manufacture of quality soaring instrumentation since 1978 www.borgeltinstruments.com tel: 07 4635 5784 overseas: int+61-7-4635 5784 mob: 042835 5784 : int+61-42835 5784 P O Box 4607, Toowoomba East, QLD 4350, Australia ---------------------------------------------------------------------------- _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring ---------------------------------------------------------------------------- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2240 / Virus Database: 2641/5683 - Release Date: 03/16/13 ------------------------------------------------------------------------------ _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring ------------------------------------------------------------------------------ No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2240 / Virus Database: 2641/5683 - Release Date: 03/16/13
_______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
