Timz From United States of America, joined Sep 1999, 7226 posts, RR: 7
Reply 2, posted (14 years 9 months 2 days 18 hours ago) and read 4039 times:
As I recall the JT9D-70 (or maybe -7O) was the "same" as the -59 on the DC-10-40, and commonality with the DC-10 (and A300, P&W hoped) was the reason for the different nacelle. Seems to me the -7Q was the "same" engine, modified to use the usual P&W nacelle.
Wasn't the 747 originally powered by the -3 or -3A?