Another FDX MD?
#21
The touchdown seems a bit hard and 7.5 degrees it a lot of nose up attitude for landing, but on the 757 the nose can pitch up after the spoilers come up, sometimes dramatically.
We (at Delta) are trained to be very aware that it can happen - it seems to depend on CG as on one landing the nose will be fine while the next it can pitch up.
After landing, I move the nose forward to get positive nose down direction, then finesse it onto the ground (hopefully smoothly so it doesn't come down with a thump.)
We (at Delta) are trained to be very aware that it can happen - it seems to depend on CG as on one landing the nose will be fine while the next it can pitch up.
After landing, I move the nose forward to get positive nose down direction, then finesse it onto the ground (hopefully smoothly so it doesn't come down with a thump.)
#22
I can remember in my early MD-11 days, the MD would sometimes pitch up dramatically when the spoilers deployed. I always assumed it had to do with a change in the Center of Lift as the spoilers deployed. The "problem" seems to have totally gone away after the LSAS (?) software changes after the EWR incident.
#23
I notice that a lot on the Bus. Quick rotation to 20 nose up. I dont know what the rush is. If we had pax in the back, they would probably be a little uncomfortable!
#24
Gets Weekends Off
Joined APC: Sep 2006
Position: Retired
Posts: 3,717
OK, I know this is going to sound harsh, and maybe it's meant to be that way, but would guys PLEASE, please, take better care of that damn equipment. I need the company to remain viable, at least for the next 20 years or so. There's got to be something wrong with the training at FedEx. Either that or we've got the market cornered on lousy landing pilots. We never seem to have trouble with takeoffs. Maybe we should identify those pilots with above average landing skills and only let them land the jet, while at the same time identifying those who have superior takeoff skills and only let them do that. Now that would cause some major grief with scheduling. It would make the over 60/under 60 international scheduling issue seem like a walk in the park.
JJ
JJ
#25
Line Holder
Joined APC: Nov 2006
Position: MD-11 Capt
Posts: 48
[QUOTE=PurpleTail;605529]• Crewmember was current and qualified with multiple landings over the
last 90 days
• The aircraft was airworthy and loaded within CG
• The weather was clear and winds calm
• The crew was hand flying with the flaps at 25
• The aircraft touched down at 1.1 G with the pitch at 7.5 degrees
• When the spoilers deployed, the aircraft pitched up almost 4 degrees
• The tail strike occurred with 11.25 degrees nose up pitch
It would be nice if FedEx would publish at least this many details on the NRT crash
last 90 days
• The aircraft was airworthy and loaded within CG
• The weather was clear and winds calm
• The crew was hand flying with the flaps at 25
• The aircraft touched down at 1.1 G with the pitch at 7.5 degrees
• When the spoilers deployed, the aircraft pitched up almost 4 degrees
• The tail strike occurred with 11.25 degrees nose up pitch
It would be nice if FedEx would publish at least this many details on the NRT crash
#26
Gets Weekends Off
Joined APC: Aug 2006
Position: leaning to the left
Posts: 4,184
#27
#28
It might come down to the training program. UAL does flap 5 take offs in both the 757 and the 767 (with much reduced tail clearance on the 767 takeoff). All with very few tail strikes. I can remember doing sims where we practiced the takeoff rotation rate over and over just to prevent tail strikes.
Not saying one company does everything right, however one company may have a small part of doing training that saves tail strikes in the end.
Not saying one company does everything right, however one company may have a small part of doing training that saves tail strikes in the end.
Spoiler deployment on landing will change the pitch a bit but the normal landing attitude is only 3-4 deg. The secret is to touch down at Vref + adds. If it take power to maintain that speed, so be it. Most of our strikes have been on landing with aircraft below Vref. A good way to learn is to sit thru a couple of autolandings and the airplane will teach you how it should be done.
#29
Gets Weekends Off
Thread Starter
Joined APC: Jul 2008
Posts: 1,235
At CAL we use flaps 15 for takeoff on both aircraft almost always, and flaps 30 for landing unless it's gusty, then flaps 25. We started out with flaps 20 for takeoff on the 757 and rarely got a tail, but went to 15 to standardize with the 767. Tail strikes went up so we got more emphasis in training, threading the fine line between pitch limits, tire, and flap speed limits on MGW takeoffs. Also, our 75's have Rolls 41k+ thrust engines, which makes a difference. Pitch limits takeoff/landing for the 752 and 762 are about 13 & 10, 753 and 764 are 9.5 & 8.0.
Spoiler deployment on landing will change the pitch a bit but the normal landing attitude is only 3-4 deg. The secret is to touch down at Vref + adds. If it take power to maintain that speed, so be it. Most of our strikes have been on landing with aircraft below Vref. A good way to learn is to sit thru a couple of autolandings and the airplane will teach you how it should be done.
Spoiler deployment on landing will change the pitch a bit but the normal landing attitude is only 3-4 deg. The secret is to touch down at Vref + adds. If it take power to maintain that speed, so be it. Most of our strikes have been on landing with aircraft below Vref. A good way to learn is to sit thru a couple of autolandings and the airplane will teach you how it should be done.
Boeing offered a tail skid option on the 757, looks like should have made it standard equipment.
#30
Gets Weekends Off
Joined APC: Dec 2007
Posts: 829
I jumpseated on the Bus the other day and definitely noticed the rotation rate on t/o, looking through the small windows from the j/s. I didn't expect a tailstrike, but it caught my attention.
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