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Spoilers On Takeoff?  
User currently offlineJzucker From United States of America, joined Nov 1999, 100 posts, RR: 0
Posted (12 years 2 months 2 weeks 1 day 16 hours ago) and read 1332 times:

I recently noticed that on take off in a 737, the spoilers seemed to deploy at varying degrees after rotation for a few hundred feet into the climb. Is this a function of the 73's trim?

4 replies: All unread, jump to last
 
User currently offlineAvt007 From Canada, joined Jul 2000, 2132 posts, RR: 5
Reply 1, posted (12 years 2 months 2 weeks 1 day 15 hours ago) and read 1256 times:

I'd suspect you were seeing the roll spoilers deflect as the crew or autopilot put in small roll corrections to stay level.

User currently offlineTheairbusguy From France, joined Sep 2001, 37 posts, RR: 0
Reply 2, posted (12 years 2 months 2 weeks 1 day 8 hours ago) and read 1206 times:

it's normal , some spoilers (roll spoilers) are operating with the ailerons.

User currently offlinePositive rate From Australia, joined Sep 2001, 2143 posts, RR: 1
Reply 3, posted (12 years 2 months 2 weeks 1 day 8 hours ago) and read 1192 times:

yes what you saw were roll spoilers. They operate with and sometimes without the ailerons depending on the IAS.

User currently offlineBlackbird From , joined Dec 1969, posts, RR:
Reply 4, posted (12 years 2 months 1 week 6 days 7 hours ago) and read 1078 times:

On the 737, like many aircraft, have flight spoilers that can be used to assist roll-control by deploying asymetrically. Asymetrical deflection helps kill-off lift on that wing, thus lowering it at a more rapid rate than the ailerons could alone. On the 737, once the yoke is turned past 7 degrees the flight spoilers begin to raise asymetrically (the spoilers are not up on the other side).

-Kamarov



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