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B747 Engine Start Sequence  
User currently offlineHAWK21M From India, joined Jan 2001, 31667 posts, RR: 56
Posted (12 years 11 months 2 weeks 3 days 4 hours ago) and read 2081 times:

Whats the B747 Engine Start sequence.
Eg #2,3,1,4 etc.

regds
HAWK.


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4 replies: All unread, jump to last
 
User currently offlineWhalepilot From United States of America, joined Jun 2001, 91 posts, RR: 0
Reply 1, posted (12 years 11 months 2 weeks 2 days 14 hours ago) and read 2041 times:

At our airline it's normally 4,3,2,1.

User currently offlineCx flyboy From Hong Kong, joined Dec 1999, 6588 posts, RR: 55
Reply 2, posted (12 years 11 months 2 weeks 2 days 3 hours ago) and read 2014 times:

At Cathay it's 4,1,2,3.

User currently offline777236ER From , joined Dec 1969, posts, RR:
Reply 3, posted (12 years 11 months 2 weeks 2 days ago) and read 2005 times:

At BA it's 4, 1, 2, 3. Engine 4 powers the primary braking source, that's why it's started first. Engine 1 powers the secondary braking source and engine 2 powers the reserve braking source. Engine 3 doesn't power a braking souce, that's why it's ofter shutdown after landing.

User currently offlineQNH1013 From Belgium, joined May 2001, 104 posts, RR: 0
Reply 4, posted (12 years 11 months 2 weeks 1 day 16 hours ago) and read 1986 times:

I've read in a 747-200 manual, the best sequence is 3-4-2-1... Not sure about that...

Greetz
QNH1013


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