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#1
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I keep hearing the media state the CRJ fully loaded needs 5000+ feet for
takeoff. But the devil is always in the details: Does anyone have the approx expected ground roll TO numbers? The expected roll distance to V1? And does anyone know if runway 26 has runway remaining signage? I'm asking because I would have expected rotation by 2500 feet and wheels off by 3000. Contrast this with the media stating that the NTSB found scrape marks on the departure end of runway 26 possibly from the CRJ overrotating. |
#2
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![]() "Mike Isaksen" wrote in message news:34KIg.718 I'm asking because I would have expected rotation by 2500 feet and wheels off by 3000. Maybe empty, and maybe if it was a planned event, but loaded- I don't think so. If someone has a book they could verify. Contrast this with the media stating that the NTSB found scrape marks on the departure end of runway 26 possibly from the CRJ overrotating. That would be consistent with a craft being muscled off the ground before it was ready to fully fly. Possibly could have flown by 4500 or so feet, but that's just a guess. As it was, it appears the craft sort of half-assed flew for a half mile before settling back down. The flight path appears to have been fairly straight, so I'd guess there was some degree of control. |
#3
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![]() "John Gaquin" wrote in message . .. "Mike Isaksen" wrote in message news:34KIg.718 I'm asking because I would have expected rotation by 2500 feet and wheels off by 3000. Maybe empty, and maybe if it was a planned event, but loaded- I don't think so. If someone has a book they could verify. Contrast this with the media stating that the NTSB found scrape marks on the departure end of runway 26 possibly from the CRJ overrotating. That would be consistent with a craft being muscled off the ground before it was ready to fully fly. Possibly could have flown by 4500 or so feet, but that's just a guess. As it was, it appears the craft sort of half-assed flew for a half mile before settling back down. The flight path appears to have been fairly straight, so I'd guess there was some degree of control. I understand that on some turbine A/C a standard procedure is to calculate the power setting required for a given runway length, weight, density altitude, etc. On takeoff, that power setting is used instead of full power, saving wear and tear on the engines, and reducing noise and fuel burn. Does anyone know if this is the case for the CRJ? I can imagine a scenario where the pilots used a power setting calculated for a 7,000' runway, whereas full power *might* have allowed the aircraft to safely depart from a 3,500' runway. Anyone familiar with these procedures for the CRJ? KB |
#4
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I can't imagine a fully loaded CRJ could make it off a 3500' runway...or
even intentionally try. I fly a Hawker 700...full gross is 25,000 lbs...and we would never make that...or even try it. JMHO "Mike Isaksen" wrote in message news:34KIg.718$wI5.407@trndny04... I keep hearing the media state the CRJ fully loaded needs 5000+ feet for takeoff. But the devil is always in the details: Does anyone have the approx expected ground roll TO numbers? The expected roll distance to V1? And does anyone know if runway 26 has runway remaining signage? I'm asking because I would have expected rotation by 2500 feet and wheels off by 3000. Contrast this with the media stating that the NTSB found scrape marks on the departure end of runway 26 possibly from the CRJ overrotating. |
#5
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The fully loaded CRJ takes `5500 feet...
The airport diagram says no aircraft over 12,000 are to use 26 for landing or taxiing either. "WRE" (remove nospam) wrote in message ... :I can't imagine a fully loaded CRJ could make it off a 3500' runway...or : even intentionally try. : I fly a Hawker 700...full gross is 25,000 lbs...and we would never make : that...or even try it. : : JMHO : : : : "Mike Isaksen" wrote in message : news:34KIg.718$wI5.407@trndny04... : I keep hearing the media state the CRJ fully loaded needs 5000+ feet for : takeoff. But the devil is always in the details: Does anyone have the : approx expected ground roll TO numbers? The expected roll distance to V1? : And does anyone know if runway 26 has runway remaining signage? : I'm asking because I would have expected rotation by 2500 feet and wheels : off by 3000. Contrast this with the media stating that the NTSB found : scrape marks on the departure end of runway 26 possibly from the CRJ : overrotating. : : : |
#6
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![]() "Kyle Boatright" wrote in message I understand that on some turbine A/C a standard procedure is to calculate the power setting required for a given runway length, weight, density altitude, etc. On takeoff, that power setting is used instead of full power, saving wear and tear on the engines, and reducing noise and fuel burn. That's correct. A "Reduced Performance Take-off" would have to be specifically allowed by Comair's OpSpecs, and then there would likely be a long list of conditions prohibiting its use. We used to have ten specific conditions that could kill an RPT. Eleven, actually, as Captain's discretion was at the top of the list :-). I can imagine a scenario where the pilots used a power setting calculated for a 7,000' runway, whereas full power *might* have allowed the aircraft to safely depart from a 3,500' runway. I have no knowledge of the CRJ, but I don't think so. The power reduction in a near-gross-weight airplane was enough to save a noticable amount of fuel on the take-off, but not so great that it would effectively double your take-off run. |
#7
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We've had people in the sim at Downsview working this all day.
The deal is that the pilots missed several visual cues... repaved runway now 150 ft. wide, new taxi routing, small yellow sign a little down to the right that reads "3"... Bush On Mon, 28 Aug 2006 22:26:07 GMT, "Mike Isaksen" wrote: I keep hearing the media state the CRJ fully loaded needs 5000+ feet for takeoff. But the devil is always in the details: Does anyone have the approx expected ground roll TO numbers? The expected roll distance to V1? And does anyone know if runway 26 has runway remaining signage? I'm asking because I would have expected rotation by 2500 feet and wheels off by 3000. Contrast this with the media stating that the NTSB found scrape marks on the departure end of runway 26 possibly from the CRJ overrotating. |
#8
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On Mon, 28 Aug 2006 22:26:07 GMT, "Mike Isaksen"
wrote: I keep hearing the media state the CRJ fully loaded needs 5000+ feet for takeoff. But the devil is always in the details: Does anyone have the approx expected ground roll TO numbers? The expected roll distance to V1? And does anyone know if runway 26 has runway remaining signage? I'm asking because I would have expected rotation by 2500 feet and wheels off by 3000. Contrast this with the media stating that the NTSB found scrape marks on the departure end of runway 26 possibly from the CRJ overrotating. There are a number of runways here in British Columbia of around 5000', which have been regularly used by CRJ's and/or 737's. CYZT Port Hardy - 5000' CYZP Sandspit - 5120' CYDQ Dawson Creek - 5000' CYCG Castlegar - 5300' Many years ago I flew on a 737 from Vancouver to Port Hardy and Sandspit. randall g =%^) PPASEL+Night 1974 Cardinal RG http://www.telemark.net/randallg Lots of aerial photographs of British Columbia at: http://www.telemark.net/~randallg/photos.htm |
#9
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![]() "randall g" wrote in message There are a number of runways here in British Columbia of around 5000', which have been regularly used by CRJ's and/or 737's. 5000+ ft seems to be the nominal number floating around for the CRJ, but with proper configuration and/or load limiting, you can take some fairly large airplanes into some fairly small places. DCA and LGA are obvious examples. 727s at Tegucigalpa (TGU), with only about 5600 ft available after the displaced threshold, and 747s into Marana (6800 ft) are a couple of others. |
#10
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They apparently got it in the air but hit the trees...
".Blueskies." wrote in message et... : The fully loaded CRJ takes `5500 feet... : : The airport diagram says no aircraft over 12,000 are to use 26 for landing or taxiing either. : : : : "WRE" (remove nospam) wrote in message ... ::I can't imagine a fully loaded CRJ could make it off a 3500' runway...or :: even intentionally try. :: I fly a Hawker 700...full gross is 25,000 lbs...and we would never make :: that...or even try it. :: :: JMHO :: :: :: :: "Mike Isaksen" wrote in message :: news:34KIg.718$wI5.407@trndny04... :: I keep hearing the media state the CRJ fully loaded needs 5000+ feet for :: takeoff. But the devil is always in the details: Does anyone have the :: approx expected ground roll TO numbers? The expected roll distance to V1? :: And does anyone know if runway 26 has runway remaining signage? :: I'm asking because I would have expected rotation by 2500 feet and wheels :: off by 3000. Contrast this with the media stating that the NTSB found :: scrape marks on the departure end of runway 26 possibly from the CRJ :: overrotating. :: :: :: : : |
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