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#11
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"Ken S. Tucker" wrote in
: On Mar 30, 9:04 am, wrote: On Mar 29, 5:37 pm, wrote: On Mar 29, 3:22 pm, " wrote: On Mar 29, 1:03 am, "Private" wrote: Piper Malibu down east of Edmonton 5 sob FYI http://news.google.ca/nwshp?hl=en&ta...577933&topic=h http://discussions.flightaware.com/v...?p=47890#47890 http://www.aviation.ca/component/opt...rd/Itemid,306/ func... Condolences to family & friends. The pic that is posted on the Flightaware site is interesting. Is shows an almost complete cockpit with very little damage. Too bad these guys couldn't have hit a 20 foot deep pile of fluffy powder snow. They might have survived... Godspeed to all involved.. Ben On the news a few minutes ago, the TSB guys indicated that it had been an inflight breakup. That can be caused by several factors, including spiralling out of control, severe turbulence, or some pre- existing flaw leading to structural failure. It will take the investigators some time to figure it out, and even then they're sometimes not sure. I won't speculate further, but will say that inflight structural failure is one of the things that scares me most; the other is a midair collision. I pay a lot of attention to the structural inspections of our aircraft, and have my eyeballs all over the place when VFR. Deep snow wouldn't help much if it was an inflight breakup. Most frequent failures involve the tail, and an airplane will stick its nose straight down if the stab departs. Dan http://www.canada.com/globaltv/natio...9ce7fefa-920d- 4. .. Thanks Dan, (tears aside). "Dean Braithwaite, chief flight instructor at the Edmonton Flying Club" sounds good in that ref. We've recently discussed the importance of the Artificial Horizon in this group, Maybe the pilot ascended above 12500, that can **** up judgement, went spiral dive (blam) and blamed the AH, for judgement error. The debris field indicates an aircraft structural anomally at high altitude. My GUESS is he was trying to ascend above the weather, did a stall in lowered air density, converted to a spiral dive, that shattered the a/c in a few hundred feet at fairly high altitude. In a spiral dive the a/c is using gravity to accelerate, it's like jumping off a building and it comes on fast. Every pilot must know when he's in a spiral dive and how to correct it. Hard input will shatter the a/c, especially if IAS is near red line, which happens quickly, so be gentle. In my experience, gentle application of elevator with reverse aileron is ok. However, jerking the elevator can snug the turn and exceed the g-rating, specially if the airlerons are used inappropriately. I'd like to hear an expert opinion. Here's mine. You are a liar and an idiot. Bertie |
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Ken S. Tucker wrote:
On Mar 30, 9:04 am, wrote: On Mar 29, 5:37 pm, wrote: On Mar 29, 3:22 pm, " wrote: On Mar 29, 1:03 am, "Private" wrote: Piper Malibu down east of Edmonton 5 sob FYI http://news.google.ca/nwshp?hl=en&ta...577933&topic=h http://discussions.flightaware.com/v...?p=47890#47890 http://www.aviation.ca/component/opt...temid,306/func... Condolences to family & friends. The pic that is posted on the Flightaware site is interesting. Is shows an almost complete cockpit with very little damage. Too bad these guys couldn't have hit a 20 foot deep pile of fluffy powder snow. They might have survived... Godspeed to all involved.. Ben On the news a few minutes ago, the TSB guys indicated that it had been an inflight breakup. That can be caused by several factors, including spiralling out of control, severe turbulence, or some pre- existing flaw leading to structural failure. It will take the investigators some time to figure it out, and even then they're sometimes not sure. I won't speculate further, but will say that inflight structural failure is one of the things that scares me most; the other is a midair collision. I pay a lot of attention to the structural inspections of our aircraft, and have my eyeballs all over the place when VFR. Deep snow wouldn't help much if it was an inflight breakup. Most frequent failures involve the tail, and an airplane will stick its nose straight down if the stab departs. Dan http://www.canada.com/globaltv/natio...ce7fefa-920d-4... Thanks Dan, (tears aside). "Dean Braithwaite, chief flight instructor at the Edmonton Flying Club" sounds good in that ref. We've recently discussed the importance of the Artificial Horizon in this group, Maybe the pilot ascended above 12500, that can **** up judgement, went spiral dive (blam) and blamed the AH, for judgement error. The debris field indicates an aircraft structural anomally at high altitude. My GUESS is he was trying to ascend above the weather, did a stall in lowered air density, converted to a spiral dive, that shattered the a/c in a few hundred feet at fairly high altitude. In a spiral dive the a/c is using gravity to accelerate, it's like jumping off a building and it comes on fast. Every pilot must know when he's in a spiral dive and how to correct it. Hard input will shatter the a/c, especially if IAS is near red line, which happens quickly, so be gentle. In my experience, gentle application of elevator with reverse aileron is ok. However, jerking the elevator can snug the turn and exceed the g-rating, specially if the airlerons are used inappropriately. I'd like to hear an expert opinion. Me, too, as yours certainly is far from expert. |
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On Mar 30, 5:14 pm, "Ken S. Tucker" wrote:
Every pilot must know when he's in a spiral dive and how to correct it. Hard input will shatter the a/c, especially if IAS is near red line, which happens quickly, so be gentle. In my experience, gentle application of elevator with reverse aileron is ok. However, jerking the elevator can snug the turn and exceed the g-rating, specially if the airlerons are used inappropriately. I'd like to hear an expert opinion. Ken The private pilot student is taught to recognize the spiral, cut the power, level the wings, and ease out of the dive. In that exact order. Anything less is cause for failure of the exercise on the flight test. It's the failure to recognize the spiral that often gets the VFR-only pilot after he gets into IMC. Flight is coordinated and he doesn't feel anything. He isn't trained to trust, yet cross-check, all the instruments. He trusts his sense of balance, which tells him big lies when his eyes have nothing to look at outside. Some slippery airplanes will pull up hard on their own when the wings are levelled. The stability of the aircraft causes the nose to rise when airspeed rises, and so, if the speed is high enough, when the turn is stopped by levelling the wings the nose will come up on its own, sometimes hard enough to cause structural damage or failure. Many of these slippery sorts will experience failure of the horizontal stabilizer first. The airplane then flops over onto its back and the wings fail downward due to the negative G loading. The 210 and Bonanza were famous for that sort of thing. Dan |
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On Mar 30, 7:07 pm, wrote:
On Mar 30, 5:14 pm, "Ken S. Tucker" wrote: Every pilot must know when he's in a spiral dive and how to correct it. Hard input will shatter the a/c, especially if IAS is near red line, which happens quickly, so be gentle. In my experience, gentle application of elevator with reverse aileron is ok. However, jerking the elevator can snug the turn and exceed the g-rating, specially if the airlerons are used inappropriately. I'd like to hear an expert opinion. Ken The private pilot student is taught to recognize the spiral, cut the power, level the wings, and ease out of the dive. "level and ***ease*** out". The pilot should yell out "spiral dive" as fast as he he recognizes that and that then institutes the cool recovery procedure, that differs from a spin stall. Is that right? I'm wondering about rudder application differences. In that exact order. Anything less is cause for failure of the exercise on the flight test. It's the failure to recognize the spiral that often gets the VFR-only pilot after he gets into IMC. Flight is coordinated and he doesn't feel anything. He isn't trained to trust, yet cross-check, all the instruments. He trusts his sense of balance, which tells him big lies when his eyes have nothing to look at outside. I concur. The pilot reported his Artificial Horizon Indicator (from what I've read) was to him faulty. Yeah, a faulty AH can certainly **** up a pilot on instruments, though the fella was flying in daytime. Possibly, he was clouded, (not VFR). Some slippery airplanes will pull up hard on their own when the wings are levelled. The stability of the aircraft causes the nose to rise when airspeed rises, and so, if the speed is high enough, when the turn is stopped by levelling the wings the nose will come up on its own, sometimes hard enough to cause structural damage or failure. Ok. Many of these slippery sorts will experience failure of the horizontal stabilizer first. The airplane then flops over onto its back and the wings fail downward due to the negative G loading. The 210 and Bonanza were famous for that sort of thing. Dan Thank you Dan, that's an unpleasant Roger. Ken |
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On Mar 31, 5:03*pm, "Ken S. Tucker" wrote:
"level and ***ease*** out". The pilot should yell out "spiral dive" as fast as he he recognizes that and that then institutes the cool recovery procedure, that differs from a spin stall. Is that right? Only if your mommy is listening to you playing flight sim. Cheers |
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#17
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On Mar 31, 12:03 am, "Ken S. Tucker" wrote:
"level and ***ease*** out". The pilot should yell out "spiral dive" as fast as he he recognizes that and that then institutes the cool recovery procedure, that differs from a spin stall. A spin is a stalled condition of flight. How did you now know that? Dan Mc |
#18
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![]() "Private" wrote in message ... Piper Malibu down east of Edmonton 5 sob FYI http://news.google.ca/nwshp?hl=en&ta...577933&topic=h http://discussions.flightaware.com/v...?p=47890#47890 http://www.aviation.ca/component/opt...4184/catid,55/ Condolences to family & friends. http://www.ctv.ca/servlet/ArticleNew...ub=CTVNewsAt11 http://news.google.ca/nwshp?hl=en&ta...577933&topic=n |
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On Mar 31, 11:02 pm, "Private" wrote:
"Private" wrote in message ... Piper Malibu down east of Edmonton 5 sob FYI http://news.google.ca/nwshp?hl=en&ta...577933&topic=h http://discussions.flightaware.com/v...?p=47890#47890 http://www.aviation.ca/component/opt...temid,306/func... Condolences to family & friends. http://www.ctv.ca/servlet/ArticleNew...80329/alta_pla... http://news.google.ca/nwshp?hl=en&ta...577933&topic=n This is news to me, http://www.canada.com/edmontonjourna...8-825a02ca8ec5 So in IFR in dense cloud, the AH starts going funny, one still x-checks against the heading indicator and the altimeter/rate of descent. Finally there's the magnetic compass that is fool- proof, (not idiot proof-Bertie couldn't find it ;-). For rate of descent, the power setting vs, KIAS gives a fair good idea of the rate of descent. That all works for a 1/2 ass pilot, however if the cabin pressure had a slow leak, and the pilot slowly looses mental faculties, (Bertie is a typical example), that could lead to pilot confusion. Ken |
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On Apr 1, 12:06 pm, "Ken S. Tucker" wrote:
On Mar 31, 11:02 pm, "Private" wrote: "Private" wrote in message ... Piper Malibu down east of Edmonton 5 sob FYI http://news.google.ca/nwshp?hl=en&ta...577933&topic=h http://discussions.flightaware.com/v...?p=47890#47890 http://www.aviation.ca/component/opt...temid,306/func... Condolences to family & friends. http://www.ctv.ca/servlet/ArticleNew...80329/alta_pla... http://news.google.ca/nwshp?hl=en&ta...577933&topic=n This is news to me,http://www.canada.com/edmontonjourna...d=1c6483cc-309... So in IFR in dense cloud, the AH starts going funny, one still x-checks against the heading indicator and the altimeter/rate of descent. Finally there's the magnetic compass that is fool- proof, (not idiot proof-Bertie couldn't find it ;-). For rate of descent, the power setting vs, KIAS gives a fair good idea of the rate of descent. That all works for a 1/2 ass pilot, however if the cabin pressure had a slow leak, and the pilot slowly looses mental faculties, (Bertie is a typical example), that could lead to pilot confusion. Ken And the last time you flew partial panel in IMC was....? |
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