Pshifrin From United States of America, joined Jan 2001, 255 posts, RR: 0 Posted (12 years 5 months 3 weeks 2 days 17 hours ago) and read 2354 times:
this weekend i flew HPN-ORD-SFO When we flew out of ORD, the plane in front of us on the runway was just barely at rotation when we throttled up for takeoff. Is this normal? I thought that takeoff separation was about 2 minutes, especially after the AA587 disaster.
fyi, aircraft in front of us was an MD-80, our ship was an AA 738.
LY744 From Canada, joined Feb 2001, 5536 posts, RR: 10
Reply 1, posted (12 years 5 months 3 weeks 2 days 16 hours ago) and read 2324 times:
How could you see the a/c in front of you was rotating? Were you in the jumpseat or something?
I'm no expert, but since both a/c are roughly the same size, separation may not be such a big issue?
Critter_592 From United States of America, joined Jun 2000, 279 posts, RR: 0
Reply 2, posted (12 years 5 months 3 weeks 2 days 16 hours ago) and read 2306 times:
I know controllers sometimes use aniticpated separation, meaning they feel that by the time the second a/c rotates they will have obtained their minimum separation. I think it is 2 minutes for heavies, and just 5 miles for everyone else.
Pshifrin From United States of America, joined Jan 2001, 255 posts, RR: 0
Reply 3, posted (12 years 5 months 3 weeks 2 days 16 hours ago) and read 2306 times:
I wish i was in the jumpseat! No, I was sitting at the window and our plane was perpendicular to the runway, we turned very quickly and powered up immediately, therefore, i'm assuming the other plane had just rotated, it was just a few seconds difference.
Jmacias34 From United States of America, joined Sep 2000, 379 posts, RR: 0
Reply 5, posted (12 years 5 months 3 weeks 2 days 13 hours ago) and read 2248 times:
Probably my favorite aviation memory happened last summer at SFO. I was aboard a United 733 bound for ONT, we lined up on 1L while an Alaska MD-80 had started its run on 1R, we were roughly about 1000ft behind it when it rotated - then we rotated and at about 1000agl we made a slight left turn about 10 degrees. Simultaneous approaches/departures are quite a sight.