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Taxi With One Engine

Concentriq From United States of America, joined Jan 2005, 368 posts, RR: 0
Posted (7 years 6 months 2 days 3 hours ago) and read 1835 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

TPAnx From United States of America, joined Aug 2005, 1021 posts, RR: 1
Reply 1, posted (7 years 6 months 2 days 3 hours ago) and read 1825 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

Okie From United States of America, joined Jul 2003, 2345 posts, RR: 3
Reply 2, posted (7 years 6 months 2 days 3 hours ago) and read 1815 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

Captaink From Mexico, joined May 2001, 5093 posts, RR: 13
Reply 3, posted (7 years 6 months 2 days 3 hours ago) and read 1813 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....

Dakar From United States of America, joined Nov 2005, 71 posts, RR: 0
Reply 4, posted (7 years 6 months 2 days 3 hours ago) and read 1774 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

BR715-A1-30 From , joined Dec 1969, posts, RR:
Reply 5, posted (7 years 6 months 1 day 23 hours ago) and read 1745 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.

Starlionblue From Hong Kong, joined Feb 2004, 15867 posts, RR: 66
Reply 6, posted (7 years 6 months 1 day 23 hours ago) and read 1735 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