Western737 From United States of America, joined May 2000, 489 posts, RR: 0 Posted (11 years 9 months 1 week 6 days 13 hours ago) and read 1626 times:
Last night we viewed several videotapes of our trips on NWA DC-10-40 and DC-10-30. We noticed that the 40 series has the leading fin on engine moved few inches clockwise - leaving old mark where fin once attached to. We dont see any change on 30 series. We are hoping to find out why they done only on 40 series, not on 30 series? Anyone know or has the answer to this?
TR From UK - England, joined May 2001, 953 posts, RR: 0
Reply 1, posted (11 years 9 months 1 week 6 days 13 hours ago) and read 1601 times:
Probably due to the fact that all DC-10 series 30 are all powered by General Electric engines and the series 40 by Pratt & Whitney. The engines are not completely alike in their external design which could be the answer to your question.
ATA L1011 From United States of America, joined Feb 2001, 1383 posts, RR: 6
Reply 4, posted (11 years 9 months 1 week 6 days 12 hours ago) and read 1541 times:
TR both of those aircraft pix are series 30 models with 2 different versions of the GE engine. The way to tell is the way to tell all 40's have the trumpet shape #inlet. Western most 30's have that little fin as well on the 1 and 3 engines, if you look closely at the pix of the 30 in TR's pix you will notice that it has it as well.