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#1
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On Jul 1, 10:21*am, Frank Whiteley wrote:
On Jul 1, 10:55*am, ContestID67 wrote: http://www.sltrib.com/news/ci_12717073 There've been some conflicting reports. *This has a bit more detailhttp://www.thespectrum.com/article/20090701/NEWS01/907010314/Glider+a... We are having a horrible year. 2 fatal crashes in 2 US regional contests one day after the other. Both sounds like the glider suddenly plummeted to the ground. Very depressing. I hope we will find out one day why very experienced pilots suddenly loose control and hit the ground. Ramy |
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On Jul 1, 1:41*pm, Ramy wrote:
On Jul 1, 10:21*am, Frank Whiteley wrote: On Jul 1, 10:55*am, ContestID67 wrote: http://www.sltrib.com/news/ci_12717073 There've been some conflicting reports. *This has a bit more detailhttp://www.thespectrum.com/article/20090701/NEWS01/907010314/Glider+a... We are having a horrible year. 2 fatal crashes in 2 US regional contests one day after the other. Both sounds like the glider suddenly plummeted to the ground. Very depressing. I hope we will find out one day why very experienced pilots suddenly loose control and hit the ground. Ramy This is a sad reminder that any of us can kill themselves. There is no absolute solution, short of not flying, but there are things we can all do. 1) Study these events and learn from them 2) Get some additional training 3) Fly regularly. Get advice from good sources- who may not tell you what you want to hear. 4) Promise ourselves(and our families) that we will look for risks and eliminate them, or at least minimize them. THEN- Do what we promise ourselves. 5) Never count on luck. From a guy that got away with one(and didn't think he would ever put himself in that kind of situation). FWIW UH |
#3
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On Jul 1, 11:01*am, wrote:
On Jul 1, 1:41*pm, Ramy wrote: On Jul 1, 10:21*am, Frank Whiteley wrote: On Jul 1, 10:55*am, ContestID67 wrote: http://www.sltrib.com/news/ci_12717073 There've been some conflicting reports. *This has a bit more detailhttp://www.thespectrum.com/article/20090701/NEWS01/907010314/Glider+a... We are having a horrible year. 2 fatal crashes in 2 US regional contests one day after the other. Both sounds like the glider suddenly plummeted to the ground. Very depressing. I hope we will find out one day why very experienced pilots suddenly loose control and hit the ground. Ramy This is a sad reminder that any of us can kill themselves. There is no absolute solution, short of not flying, but there are things we can all do. 1) Study these events and learn from them 2) Get some additional training 3) Fly regularly. Get advice from good sources- who may not tell you what you want to hear. 4) Promise ourselves(and our families) that we will look for risks and eliminate them, or at least minimize them. THEN- Do what we promise ourselves. 5) Never count on luck. From a guy that got away with one(and didn't think he would ever put himself in that kind of situation). FWIW UH I agree. But I am especially bothered by accidents that don't seem to fall under any of the above critical points. Ramy |
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On Jul 1, 2:49*pm, Ramy wrote:
On Jul 1, 11:01*am, wrote: On Jul 1, 1:41*pm, Ramy wrote: On Jul 1, 10:21*am, Frank Whiteley wrote: On Jul 1, 10:55*am, ContestID67 wrote: http://www.sltrib.com/news/ci_12717073 There've been some conflicting reports. *This has a bit more detailhttp://www.thespectrum.com/article/20090701/NEWS01/907010314/Glider+a... We are having a horrible year. 2 fatal crashes in 2 US regional contests one day after the other. Both sounds like the glider suddenly plummeted to the ground. Very depressing. I hope we will find out one day why very experienced pilots suddenly loose control and hit the ground. Ramy This is a sad reminder that any of us can kill themselves. There is no absolute solution, short of not flying, but there are things we can all do. 1) Study these events and learn from them 2) Get some additional training 3) Fly regularly. Get advice from good sources- who may not tell you what you want to hear. 4) Promise ourselves(and our families) that we will look for risks and eliminate them, or at least minimize them. THEN- Do what we promise ourselves. 5) Never count on luck. From a guy that got away with one(and didn't think he would ever put himself in that kind of situation). FWIW UH I agree. But I am especially bothered by accidents that don't seem to fall under any of the above critical points. Ramy- Hide quoted text - - Show quoted text - Speculation on my part- It would be interesting to know when the past time either of these folks spun a glider and if either had ever spun the glider they were flying. When I ask this question of most pilots, the answer I get is that they never have. Again FWIW UH |
#5
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On Jul 1, 12:27�pm, wrote:
On Jul 1, 2:49�pm, Ramy wrote: On Jul 1, 11:01�am, wrote: On Jul 1, 1:41�pm, Ramy wrote: On Jul 1, 10:21�am, Frank Whiteley wrote: On Jul 1, 10:55�am, ContestID67 wrote: http://www.sltrib.com/news/ci_12717073 There've been some conflicting reports. �This has a bit more detailhttp://www.thespectrum.com/article/20090701/NEWS01/907010314/Glider+a... We are having a horrible year. 2 fatal crashes in 2 US regional contests one day after the other. Both sounds like the glider suddenly plummeted to the ground. Very depressing. I hope we will find out one day why very experienced pilots suddenly loose control and hit the ground. Ramy This is a sad reminder that any of us can kill themselves. There is no absolute solution, short of not flying, but there are things we can all do. 1) Study these events and learn from them 2) Get some additional training 3) Fly regularly. Get advice from good sources- who may not tell you what you want to hear. 4) Promise ourselves(and our families) that we will look for risks and eliminate them, or at least minimize them. THEN- Do what we promise ourselves. 5) Never count on luck. From a guy that got away with one(and didn't think he would ever put himself in that kind of situation). FWIW UH I agree. But I am especially bothered by accidents that don't seem to fall under any of the above critical points. Ramy- Hide quoted text - - Show quoted text - Speculation on my part- It would be interesting to know when the past time either of these folks spun a glider and if either had ever spun the glider they were flying. When I ask this question of most pilots, the answer I get is that they never have. Again FWIW UH- Hide quoted text - - Show quoted text - I'd have to add that it's important to be in good health. You don't want to have any issues, especially in conditions that may cause stress like contests and weather (as in heat). Mike Z |
#6
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I agree. But I am especially bothered by accidents that don't seem to
fall under any of the above critical points. Ramy Ramy - While its too early to talk about accident causation, in both cases there appears to be some stall/spin behavior in the chain of events. Stall/spin accidents are a known problem and an area that _all_ pilots should be aware of. There is no excuse for not practicing them and/or taking spin recovery training. Every pilot should understand their CG (and its effects on stall/spin behavior of their particular aircraft). They should also think about stall/spin behavior and CG changes when they load up on water ballast as well. --Noel |
#7
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On Jul 1, 12:31*pm, "noel.wade" wrote:
I agree. But I am especially bothered by accidents that don't seem to fall under any of the above critical points. Ramy Ramy - While its too early to talk about accident causation, in both cases there appears to be some stall/spin behavior in the chain of events. Stall/spin accidents are a known problem and an area that _all_ pilots should be aware of. *There is no excuse for not practicing them and/or taking spin recovery training. Every pilot should understand their CG (and its effects on stall/spin behavior of their particular aircraft). *They should also think about stall/spin behavior and CG changes when they load up on water ballast as well. --Noel Some of our birds are placarded against spinning (my Nimbus 3 included). Spin training is a must, but something like a Blanik won't necessarily prepare a pilot for a glider with a less benign spin mode. All of our machines "talk" to us in the air. The best thing we can do is learn how to really listen to them. Craig |
#8
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On Jul 1, 2:01*pm, Craig wrote:
On Jul 1, 12:31*pm, "noel.wade" wrote: I agree. But I am especially bothered by accidents that don't seem to fall under any of the above critical points. Ramy Ramy - While its too early to talk about accident causation, in both cases there appears to be some stall/spin behavior in the chain of events. Stall/spin accidents are a known problem and an area that _all_ pilots should be aware of. *There is no excuse for not practicing them and/or taking spin recovery training. Every pilot should understand their CG (and its effects on stall/spin behavior of their particular aircraft). *They should also think about stall/spin behavior and CG changes when they load up on water ballast as well. --Noel Some of our birds are placarded against spinning (my Nimbus 3 included). *Spin training is a must, but something like a Blanik won't necessarily prepare a pilot for a glider with a less benign spin mode. *All of our machines "talk" to us in the air. *The best thing we can do is learn how to really listen to them. Craig After many years of first learning spins, practicing them and finally teaching them, I've developed the opinion that what we do to teach spins has little to do with the actual killer spin. Who would inadvertently haul the nose way up then stomp full rudder at the stall break? The people who taught me the killer spin were my students. As in, "I didn't know a glider would do that." It helps to have a easily spinable glider like a 2-32, Blanik or Lark although the 2-32 tends to spin too easily. These spins require a set up. First, fly at minimum controllable airspeed for at least 30 seconds. Try to let the glider slowly and smoothly enter "mushing flight". In "mushing flight" the glider is not quite stalled but the airflow over the wing has become unstable. Any disturbance will trip it into a full stall. The angle of attack is very high due to the sink rate - not a nose high attitude. In fact, the nose can be near the usual gliding attitude. Any attempt to turn will trip an asymmetric stall which will develop into a spin in less than a second. Just before the glider spins, everything "looks" normal. (Except, of course, for the ridiculously low airspeed, sloppy controls, absence of wind noise etc...) Several high time glider pilots doing a BFR with me didn't see this one coming and were visibly shaken by their 'inadvertent spin'. What happens next is crucial. If the pilot does nothing, the glider is likely to transition into a spiral dive. If the pilot then applies spin recovery control inputs the spiral dive will become much worse. Some of the scariest rides I've had is with a pilot using "anti-spin" control inputs while in a spiral dive. In most fatal "spin-in" accidents, I think the glider is likely to have transitioned to a spiral dive before impact. This can also explain some in-flight breakups following an inadvertent spin. |
#9
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There has been some insightful, thoughtful, and (I hope)
thought-provoking input ahead of this post & I doubt I can contribute much more, beyond agreeing with it all and trying to reinforce it from my personal perspective. As the years have passed, one by one most of my long-held beliefs about certain aspects of aviation have been proven wrong by reality, e.g.: - it IS possible to spin in a landing-flap-only-equipped sailplane while flying a pattern with full flaps; - people DO routinely fall asleep at the switch; - "it" CAN happen to me. The ship I've flown since 1981 is docility defined in every flight regime which I've explored, and I have difficulty imagining one of similar airfoil & configuration being inadvertently spun...yet it has been done (not by me), and, into the ground, with full flaps deployed (the pilot - who survived - was overshooting his off-airport field). I've never spun mine, have no intention of ever spinning it (intentionally or unintentionally), but believe in my soul that it *might* be possible that I *could* inadvertently spin it...and try really hard to "not do it!" So far, it's worked. I believe and think this way for a number of reasons: 1) accident reports tell me others (including paid professionals) too-often 'do the impossibly unlikely;' 2) perfection's NOT an option; and 3) I hope that by so believing I'm doing everything I can within myself to *avoid* doing those things I never - EVER! - want to do in a glider. You're darned right there's a paradox here, but until someone comes up with an inoculation against human forgetfulness, momentary inattention during critical flight regimes, varying/diminishing skills, etc. I believe it's the best I can do within my own brain. I knew neither of our recently departed soul brothers, but mourn their passing and circumstances, and grieve for their families and friends. Respectfully and Sorrowfully, Bob W. |
#10
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On Jul 1, 5:32*pm, bildan wrote:
What happens next is crucial. *If the pilot does nothing, the glider is likely to transition into a spiral dive. *If the pilot then applies spin recovery control inputs the spiral dive will become much worse. Some of the scariest rides I've had is with a pilot using "anti-spin" control inputs while in a spiral dive. I'm a little confused by this. The normal recovery from a spiral dive is to roll the wings level and then apply smooth aft stick pressure to level flight. What is it about the "anti-spin" control inputs that makes the spiral dive worse? Do you mean something like full rudder in the anti-turn direction and full forward stick? TA |
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