DaveT From Canada, joined Dec 2011, 1 posts, RR: 0 Posted (14 years 11 months 2 weeks 5 days 10 hours ago) and read 1450 times:
Can anyone tell me if it is possible to have the flap setting to zero for takeoff and under certain conditions, rotate and climb successfully?
Are there any wind strengths and wind directions (I don't mean 300 miles an hour either.) that make this possible and is there any airport in the world due to its elevation or perhaps "unsual" meteioralogical conditions that "could" permit this?
Or.... if they are not set, anything from a DC-9 above, you are toast! period!
Any pilots, mechanics or instructors able to answer this?
Buff From Australia, joined Mar 2007, 0 posts, RR: 1
Reply 1, posted (14 years 11 months 2 weeks 5 days 9 hours ago) and read 1413 times:
It depends entirely on the airplane. If flaps are required for takeoff, and a configuration warning device is enabled, then a warning will sound if flaps are not in correct position. Older airplanes don't have these config warnings. Some aircraft don't need flaps for takeoff.
Viflyer From US Virgin Islands, joined May 1999, 502 posts, RR: 0
Reply 8, posted (14 years 11 months 2 weeks 5 days 5 hours ago) and read 1346 times:
I usual SOP with the Saab340B normally has us taking off with 0 flap. Every now and then when there is a high load from a short runway (i.e. Thanksgiving out of the short 4000 ft. runway at DCA they used flaps 5) but about 95% of the time it's 0 flap. But it's a prop.
Iahcsr From United States of America, joined Jun 1999, 3693 posts, RR: 38
Reply 9, posted (14 years 11 months 2 weeks 5 days 5 hours ago) and read 1344 times:
The only aircraft in CO's fleet to routinely do zero flap takeoffs was the A-300. In theory, given enough speed, I would think most aircraft could do this.... but I wouldn't care to be on the plane that tried it.
Cedarjet From United Kingdom, joined May 1999, 8558 posts, RR: 53
Reply 12, posted (14 years 11 months 2 weeks 5 days ago) and read 1313 times:
A Lufthansa 747 crashed about a minute after takeoff in Nairobi in 1975 because the leading edge slats weren't deployed. They are actuated using pnuematics, which are closed during engine start. Switches were not reset and even though the flap/slat handle was correctly positioned, the slats didn't extend and the aircraft stalled. About 60 passengers were killed. This was after a BOAC 747 had a similar experience at Shannon a year or two previously but a change in start-up procedures was not widely published. The BOAC flight managed to fly away, just.
fly Saha Air 707s daily from Tehran's downtown Mehrabad to Mashhad, Kish Island and Ahwaz