JZ From United States of America, joined May 1999, 252 posts, RR: 0
Reply 1, posted (15 years 5 months 2 weeks 6 days 2 hours ago) and read 2421 times:
SR does stand for short range. The 747-300 SR is developed for the high density Japanese market. It has reduced fuel capacity but strengthened landing gear so it can handle the frequent take-off and landings of the Japanese domestic routes.
DC-10 From , joined Dec 1969, posts, RR:
Reply 4, posted (15 years 5 months 2 weeks 6 days ago) and read 2396 times:
Yep SR is short range....used by the japanese airlines for interisland flights mostly...There are 100SR 200SRs, 300SRs, and 400D's which are series 400's minus the winglets also used for interisland flights
Cathay111 From Australia, joined Oct 2006, 55 posts, RR: 14
Reply 5, posted (15 years 5 months 2 weeks 5 days 19 hours ago) and read 2394 times:
I have seen the aircraft twice in the last week here in Sydney and photographed it both times, and I also know it was in one day during the week as well. This aircraft is configured to carry 563 pax and use to be the Okinawa Super Resort Express aircraft and was nearly permanently utilised on this route along with, i believe, sister ship JA8187.
The reason for it travelling to Australia remains unclear, maybe it was just operationally required to to the normal 200 service undergoing maintenance.
Cedarjet From United Kingdom, joined May 1999, 8245 posts, RR: 54
Reply 6, posted (15 years 5 months 2 weeks 5 days 18 hours ago) and read 2390 times:
I think the SRs and Ds have the normal range of a 747, but have considerably beefed-up undercarriage and critical structure sections to counter the stresses of higher frequency operations. In fact, airframe life is dictated by two things: total hours and cycles (a cycle is a take off and a landing). Off the top of my head, I think a 747 is designed for 40,000 cycles and 100,000 hours. In short range ops the 40,000 cycles would be reached long before 100,000 hours, making retirement a tad premature. Therefore the -400Ds are designed to be retrofitted with winglets and put into long-haul service when half the cycle limit has been reached, so that considerably more hours can be squeezed out of the airframe (at which point JAL and ANA will order new 747-400Ds or A3XXDs).
Perhaps the same decision has been reached with the -100SRs, -200SRs and -300SRs, to put them into long-haul service in the relative twilight of their careers, as the airframes must be rapidly approaching the structural limit on cycles but have many hours left on the clock.
fly Saha Air 707s daily from Tehran's downtown Mehrabad to Mashhad, Kish Island and Ahwaz
Boeing727 From United States of America, joined May 1999, 956 posts, RR: 0
Reply 7, posted (15 years 5 months 2 weeks 5 days 3 hours ago) and read 2373 times:
When I looked up the info on a B747-400D, Boeing's website indicates that the aircraft has a range of about 2,075 miles, whereas Japan is over 6,000 miles away from Australia and that is the confusing issue I have with an older model B747-300SR being in Sydney. How does it get there in the first place? Does JAL do some Island hopping to get the aircraft back to Japan? I guess I need some more clarifications on the -SR/-D versions' fuel quantities. Airliners.net says that the B747-400D range is over 6,800 miles, which contradicts with Boeing's webpage.
Kaitak From Ireland, joined Aug 1999, 12672 posts, RR: 34
Reply 8, posted (15 years 5 months 2 weeks 4 days 22 hours ago) and read 2367 times:
I can understand B727's confusion. The main thing to understand is that the aircraft are interchangeable; i.e. aircraft built as SRs/Ds can be converted to international standard. This happened with at least three of ANA's -400Ds. With regard to range, this is because the maximum takeoff weight of the SRs is a lot lower (for structural as well as economic reasons - in any case, the longest internal route in Japan is only 2 hrs). Once the aircraft has been converted, the TOW is increased and with it, the range. Is that reasonably clear? Hope so!