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#301
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Highflyer wrote:
Bertie The reason we teach straight ahead is sound. One has to consider some kind of average pilot in dealing with this issue. Whether or not it can be done successfully as a turn around is so full of variables it muddies the equation. Considering altitude, wind, and exact position in relation to the departing runway, on the extreme high end of the experience level, a highly trained aerobatic pilot on one hand might could possibly even make the turn using a half turn accelerated stall done in the vertical plane, (modified hammerhead with practically no vertical up line using the vertical plane to reduce the horizontal turning component) This is even possible done by such a pilot flying something like a 172 or a 150, but I would never recommend doing it to anyone. For the "average Joe", that straight ahead within reasonable degree offset approach to the engine failure scenario on takeoff is still the safe way to deal with this issue and probably always will be in my opinion. -- Dudley Henriques Hi Bertie, Hi Dudley, ... I agree that minimum maneuvering is appropriate after low level engine failure for the average pilot. The successful turn around procedures put the airplane quite close to the edge and hamfisted piloting can easily result in a stall or stall/spin maneuver that will ruin your entire day. However, on the other hand, in a normal landing the way we used to teach them years ago, you cut the power on downwind opposite you planned touchdown point and then proceeded to make a power off 180 degree turn to a landing for EVERY landing you made. What difference does it make if you shut off the power, or it shuts off automatically for some reason? :-) And we always did that from 800 feet AGL. When I got my seaplane rating from Bob Mills at the Philadelphia Seaplane Base we had an even lower traffic pattern. Since we were situated underneath the traffic off the main runway at Philadelphia International we had to keep our pattern at or below 300 feet AWL. (That's above Water level ... it's a seaplane base.) I was flying a Republic Seabee, which is nortorious for having a glide angle somewhere between that of a bowling ball and a concrete block. I could cut power at 300 feet above the river on downwind opposite my planned touchdown point, make a leisurely 180 degree turn with clearcut downwind, crosswind, and final legs and land on the desired spot. All of this with only 300 feet altitude and no power. In a flying brick. :-) Clearly there is some altitude where a "turn back" is not unreasonable. The main requirement would be a long enough runway to allow you to make it to the runway. All that being said, the last time I lost an engine on takeoff , a couple of years ago I didn't put the nose down and glide straight ahead and I didn't turn back. I had about 1000 feet of a 4000 foot runway in front of me, although I couldn't see any of it. I had 150 feet of altitude in the bank. My airspeed was about 140 mph, in an airplane with a stall speed around 50. My first thought was to dump all that excess speed. How do you do that? Easy, I honked the yoke back and went straight up. When I got rid of my airspeed I had lots of altitude but no speed. Now all I had to do was get back down to the runway without picking up all of the speed I had lost going up. I just kicked it halfway around a hammerhead and then let it fall sideways. I figured that would minimize the speed buildup. It did, and when I got low enough I kicked it out of the slip and pulled up the nose to kill the descent rate, which was quite high! :-) I got the nose up and the descent stopped with an altitude of about 3 feet right over the numbers. I dropped it on the numbers and rolled about forty feet into the overrun before it stopped. No damage to people or airplane. The only thing I did wrong, because I wasn't thinking too clearly, was maintain a straight slip all the way down to pull out time. If I had rolled a bit either going up or coming down, I could have also made a 180 degree turn and landed toward the 3000 foot end instead of the 1000 foot end. Of course that would have been downwind and downwind landings are tricky with taildraggers because you are still moving fairly fast when you lose your aerodynamic directional control. By the way, if I had just put the nose down and glided it out straight ahead we would have gone into the woods and a creek. Probably totaled the airplane and we would likely have taked some small injury. I would still tell my students "Don't do what I just did!" Highflyer Highflight Aviation Services Pinckneyville Airport, PJY Hi Highflyer; good to see you here again. I remember the Mills operation down there on the river near the airport. Do you recall Mills driving an F4U Corsair up the river a bit "low" one sunny afternoon and Lynn Probst (FAA Chief Echelon Field at the time) having a bird over it? :-)))))) -- Dudley Henriques |
#302
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In rec.aviation.student Bertie the Bunyip wrote:
Then, a few years ago, I was test flying a homebuilt Pulsar and lost the engine ( rotax ) just as I crossed over the upwind end of the runway at abouat 300 feet AGL. In front of me were creek, woods, and an old coal mine slurry pit. None of which offered attractive landing possibilities. I opted to try a turn back maneuver. I turned to downwind and lost about fifty feet. I didn't believe it! I flew the whole downwind, did a base leg, and a final and would up doing ess turns down the final so I wouldn't overshoot the airport! I have flown sailplanes that didn't glide any better than that darn Pulsar! Wow! i never would have guessed that one of those things would go quite that far. Long wing version or something? doing a complete pattern in a 1-26 from 300' would be ropey, never mind a powered aircraft. I'd guess that the 1-26 is one of those sailplanes he's referring to that didn't glide any better! In any case, I think you're missing an essential factor in the craziness of long-time 1-26 drivers. I've seen these guys start out at 3-400ft AGL from the opposite side of the airport and do something which could at least be claimed as a full pattern with a relatively straight face. Meanwhile all the glass fellows are joining midfield at 1000. You can get away with a surprising amount if you're somewhat insane. -- Michael Ash Rogue Amoeba Software |
#303
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On Mar 7, 9:30 pm, buttman wrote:
On 7 Mar, 19:22, Dudley Henriques wrote: How's that? Learned something?:-) -- Dudley Henriques No because you did not teach anything. "This is how it is" is not teaching, it's telling. Anyways, the topic of discussion has never been about "is it OK to starve fuel on takeoff". Even if it was, its not a matter of "yes" or "no" Safety is, in my opinion, never a "yes" or "no" kind of thing. Its like discussing abortion or something. It's never as simple as "yes" or "no". By your logic a driving school should simulate (for training!) how to handle a blowout by shooting out a tire while on a flyover ramp doing 70. To make it interesting you could do it in the rain. |
#304
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On Mar 10, 9:10 am, wrote:
On Mar 7, 9:30 pm, buttman wrote: On 7 Mar, 19:22, Dudley Henriques wrote: How's that? Learned something?:-) -- Dudley Henriques No because you did not teach anything. "This is how it is" is not teaching, it's telling. Anyways, the topic of discussion has never been about "is it OK to starve fuel on takeoff". Even if it was, its not a matter of "yes" or "no" Safety is, in my opinion, never a "yes" or "no" kind of thing. Its like discussing abortion or something. It's never as simple as "yes" or "no". By your logic a driving school should simulate (for training!) how to handle a blowout by shooting out a tire while on a flyover ramp doing 70. To make it interesting you could do it in the rain. I'm enjoying this thread now, it's stimulating. The fellas were discussing flying in the rain last week. Shooting out tires, I'm placing that on next weeks agenda. Ken |
#305
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Michael Ash wrote in
: In rec.aviation.student Bertie the Bunyip wrote: Then, a few years ago, I was test flying a homebuilt Pulsar and lost the engine ( rotax ) just as I crossed over the upwind end of the runway at abouat 300 feet AGL. In front of me were creek, woods, and an old coal mine slurry pit. None of which offered attractive landing possibilities. I opted to try a turn back maneuver. I turned to downwind and lost about fifty feet. I didn't believe it! I flew the whole downwind, did a base leg, and a final and would up doing ess turns down the final so I wouldn't overshoot the airport! I have flown sailplanes that didn't glide any better than that darn Pulsar! Wow! i never would have guessed that one of those things would go quite that far. Long wing version or something? doing a complete pattern in a 1-26 from 300' would be ropey, never mind a powered aircraft. I'd guess that the 1-26 is one of those sailplanes he's referring to that didn't glide any better! In any case, I think you're missing an essential factor in the craziness of long-time 1-26 drivers. I've seen these guys start out at 3-400ft AGL from the opposite side of the airport and do something which could at least be claimed as a full pattern with a relatively straight face. Meanwhile all the glass fellows are joining midfield at 1000. You can get away with a surprising amount if you're somewhat insane. Oh yeah, depends on the size, of course. 500 feet was standard for students even in the 2-33 to do a complete pattern. The pulsar must be some airplane to approach a 20/1 L/D, though. Bertie |
#306
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#307
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WJRFlyBoy wrote:
On Sat, 8 Mar 2008 19:54:37 -1000, Owner wrote: On Fri, 7 Mar 2008 22:37:55 -0800 (PST), Ken S. Tucker wrote: Every pilot is elated to ascend following rotation, but what should you do if your engine sputters and quits while climbing at just a few hundred feet. Off hand I'd suggest pushing the yoke forward to use decent to prevent stall, because the stall can happen real fast in that attitude, so be prepared. ((Don't freeze like a deer in head lights)). Glide back to the runway or have knowledge of a safe alternative and use it. Ken Wow, Ken, even *I* know this is idiotic. My thoughts a Given no good alternative aside from the runway, know the x-wind at T-O, do max ascent into the wind as is normal, then if the engine quit's (do radio) do a descending gentle 20 into the x-wind, and come back and set the ship down. I think the key is max ascent rate, that's insurance. Ken Ken, the simple geometries don't work. Regardless of aircraft characteristics. Are you willing to bet your life on these false assumptions? -- Remove numbers for gmail and for God's sake it ain't "gee" either! No worries, I don't believe anyone has ever been injured or killed using MS Flight Simulator ![]() I know a guy that nearly poked his eye out with a controller, does that count? Must have been about as coordinated as this guy: http://www.wyff4.com/news/15478240/detail.html |
#308
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On Mon, 10 Mar 2008 15:17:23 -0500, Rich Ahrens wrote:
I know a guy that nearly poked his eye out with a controller, does that count? Must have been about as coordinated as this guy: http://www.wyff4.com/news/15478240/detail.html lol -- Remove numbers for gmail and for God's sake it ain't "gee" either! |
#309
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On Mon, 10 Mar 2008 00:01:16 -0500, "Highflyer" wrote:
"Ken S. Tucker" wrote in message ... My personal fear is loosing elevator control, it's very rare, but that Alaska Air crash a few years back (in the Pacific) was blamed on the screw that adjusts the elevator getting stripped or jammed. Ken It isn't all that rare. However, it normally isn't too difficult either. I always demonstrate to my students a landing using only elevator trim controls. You demonstrate? You are oh, so kind! After a brief practice I was expected to (and did) land the Deb using only ailerons, rudder, and trim. It aint all that difficult EXCEPT it'd be nice if some one 5'7" (just happens to be my height) could see the runway while adjusting the trim:-)) Ah well, I just thought of it like a no flap landing where the only view of the airport is out the side windows.:-)) Of course, that wouldn't have helped Alaska Air because what caused the problem was running the elevator trim off the end of the trim jackscrew. That was on an airplane where the trim is so powerful that you cannot override it. A friend of mine ran that event in the 737 sim when he did his flight check for American and said he was able to fly it that way by doing a continuous string of lazy eights. The would certainly have the passengers upset though! :-) My wife hard me talking about lazy eights so she wanted to see one. After the first 180 she said, "that's enough". Highflyer Highflight Aviation Services Pinckneyville Airport, PJY Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com |
#310
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On Mar 11, 4:53 am, Roger wrote:
After a brief practice I was expected to (and did) land the Deb using only ailerons, rudder, and trim. It aint all that difficult EXCEPT it'd be nice if some one 5'7" (just happens to be my height) could see the runway while adjusting the trim:-)) Ah well, I just thought of it like a no flap landing where the only view of the airport is out the side windows.:-)) Roger -- any idea why Beech out the trim where it did? It's probably the worst location in any airplane I've been in (except maybe the overhead thing in a Cherokee (IIRC). Dan |
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