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Jamie,
That is exactly what I was thinking. A control point. Yes, sort of like what we locally call an IP (initial point) when entering on the 45 for our normal pattern to land. We are fortunate to have a huge metal tank maybe 50 meters diameter that could be used as this remote "control point" and is in line with the 45 entry (sort of). It is probably 3-4 km away. At 500ft AGL in a 2-33 with a headwind this would be a little close, but in the L-13 or anything sexier it looks ok. Thanks for your post! Control point. I like that. Is it scored as an OZ or a cylinder? Scoring as an OZ would take a little bit of thought, and as a cylinder, I'd expect it'd need to be pretty narrow to not cover the airport. In article , John Doe wrote: Mark, I think what you are getting at is what we in the UK call a control point, a final turnpoint that must be rounded in the normal way, but is only maybe 5-10 km from the airfield, each glider is a few hundred feet (or more depending on the pilots saftey margins) up at this point and after turning the control point, competitors turn to the airfield and dive to a known linear finish gate. There is generally no minimun finish height so often the gate is crossed under 50 ft but as all competitors are coming in from a fixed direction towards a small and clear area of land it eliminates the vast majority of head to head at low altitude issues and I've never seen congestion at a control point myself (altough as my own competition experience is rather limited I won't say it never happens). As for non comp gliders, everywhere I've been competing the daily briefing for non-comp pilots always stressed the comps procedures as well as use of the radio to ensure separation in launch, landing and finishing. As long as the finish gate is suitably chosen to be away from the main landing area and obstacles with space to land after as well as an easy entry into circuit for those with the speed to do so it can be both a safe and an exciting way to finish without the artificial complications of raised finish lines. John, Whilst some of those accidents are attributable to finish gates, I'd certainly question your thinking the last three. Taking the Discus crash for example, in a Discus (in which I have a reasonable if not spectacular amount of time), 500' is adequate, if not totally comfortable, for a decent enough circuit, that crash, as well as the others, from the reports seem to be the whole 'slightly low in the circuit leads to a poor turn leading to a spin in' issue. Where the blame in that lies is the topic for another thread but that, like the other last three, does not seem to be attributable directly to finish gate issues as surely a pilot just making it over a 500' 1 mile finish gate would be in exactly the same situation as someone who has just got a few hundred feet of height from a competition pullup? The others seem to be 'insufficient speed, insufficient time to recover from the spin', afaiks the same situation as trying to scrabble over a start gate at 450' and screwing up. It's been said before but unfortunately you can't legislate good judgement. Cheers Jamie Denton -- ------------+ Mark J. Boyd |
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