HA_DC9 From United States of America, joined Jul 1999, 659 posts, RR: 1
Reply 1, posted (14 years 3 months 2 weeks 16 hours ago) and read 1826 times:
To my knowledge, nobody flies a 747-400 with the old Pratt and Whitney JT9D turbofans. People can get confused with the 747-300 which looks very similar to a 747-400 but uses P & W JT9D engines. Boeing built 2 747-100B's with the stretched upper deck (SUD) of the 747-300 which makes it look like a 747-300/400, but these were hybrid aircraft and designated 747-100B(SR/SUD). A picture and more info about these hybrid 747's is in the book "Boeing 747: Design and Development Since 1969" by Norris and Wagner.
C3000 From , joined Dec 1969, posts, RR:
Reply 4, posted (14 years 3 months 2 weeks 13 hours ago) and read 1750 times:
I think Qantas747-sp is referring to Boeing's CGI of the upcomming B747IGW as below.
The engines do look suspiciously similar. But I'm quite sure that's an oversight on the part of the artist or that the new engines do share an uncanny similarity afar but not technologically of course.