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Taxi With One Engine  
User currently offlineConcentriq From United States of America, joined Jan 2005, 368 posts, RR: 0
Posted (8 years 9 months 1 week 1 day 10 hours ago) and read 2485 times:

Was on YX flight recently, and noticed someting I havent noticed before.

I was sitting in the back of 717 and was watching the engine. It didnt start till we got to the runway. Is taxiing with one engine a SOP or is it a cost saving measure? if it is so, how much fuel is saved using only one engine to taxi?


Mobilis In Mobili
6 replies: All unread, jump to last
 
User currently offlineTPAnx From United States of America, joined Aug 2005, 1021 posts, RR: 0
Reply 1, posted (8 years 9 months 1 week 1 day 10 hours ago) and read 2475 times:

Don't know how much it saves..but it does save fuel..
Think this has come up before.
TPAnx



I read the news today..oh boy
User currently offlineOkie From United States of America, joined Jul 2003, 3000 posts, RR: 3
Reply 2, posted (8 years 9 months 1 week 1 day 10 hours ago) and read 2465 times:

Normal these days to taxi on one engine on twin to save fuel until a couple minutes before take-off.

Hey, 10 bucks! is 10 bucks!

Okie


User currently offlineCaptaink From Mexico, joined May 2001, 5109 posts, RR: 12
Reply 3, posted (8 years 9 months 1 week 1 day 10 hours ago) and read 2463 times:

Yep it does save fuel, don't know how much though. it is usually done on airports where the taxi time is quite a lot. I have had it done on dash 8's and 737's in LGA, ATR's in MIA, A320 series in PHL.


There is something special about planes....
User currently offlineDakar From United States of America, joined Nov 2005, 71 posts, RR: 0
Reply 4, posted (8 years 9 months 1 week 1 day 9 hours ago) and read 2424 times:

Does taxiing with one engine on A/C with wing-mounted engines cause any minor/major moment-arm issues? If so, is it easily countered with opposite rudder/nose gear steering?

Nick


User currently offlineBR715-A1-30 From , joined Dec 1969, posts, RR:
Reply 5, posted (8 years 9 months 1 week 1 day 5 hours ago) and read 2395 times:

I have noticed this on AirTran as well. They only taxi on one engine if the Taxi is going to be long, or if there is a long wait time. Usually, they don't start the second engine until they get moving. I've noticed this on most of my 717 flights. When FL did powerbacks in ATL, they always started both engines, but I was on one FL flight out of ATL and they only powerbacked on one engine.

User currently offlineStarlionblue From Greenland, joined Feb 2004, 17019 posts, RR: 67
Reply 6, posted (8 years 9 months 1 week 1 day 5 hours ago) and read 2385 times:

Quoting Dakar (Reply 4):
Does taxiing with one engine on A/C with wing-mounted engines cause any minor/major moment-arm issues? If so, is it easily countered with opposite rudder/nose gear steering?

Yes and yes  Wink



"There are no stupid questions, but there are a lot of inquisitive idiots."
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