Flynavy From , joined Dec 1969, posts, RR: Posted (13 years 4 months 1 week 6 days 8 hours ago) and read 2088 times:
I have always wondered how the following JAL picture could be a 747-100, since it has the extended upper deck. Same for the second picture--how is this KLM plane a 747-200, as it too has an upper deck?
I would think at first glance both of these planes would be 747-300's.
Could someone maybe make a production timeline showing the overlapping design elements or explain the options available in each model? It's confusing! Were these planes modified later in their service lives?
CX747 From United States of America, joined May 1999, 4499 posts, RR: 5
Reply 1, posted (13 years 4 months 1 week 6 days 7 hours ago) and read 2056 times:
The JAL 747-100 with the Extended Upper Deck was a regular 747-100 that was modified to its current form so that it would better meet the capacity demands of Japan's busy routes. I believe that it is a one of a kind aicraft and is the only 747-100 series aircraft to be modified like that. KLM had their 747-200 series aircraft modified to Extended Upper Deck configuration and therefore they look like 747-300s.
"History does not long entrust the care of freedom to the weak or timid." D. Eisenhower
Boeingnut From , joined Dec 1969, posts, RR:
Reply 5, posted (13 years 4 months 1 week 6 days 4 hours ago) and read 1962 times:
I cant remember the source (sorry), but I have read that extending the upper deck actually decreased drag and made the plane more aerodynamic. Im not sure if the decrease in drag (and thus fuel burn) offsets the increase in fuel burn due to higher weight from the SUD.
There appears to be a great deal of inconsistency in the designation of the aircraft shown above. I have noted two such inconsistencies.
According to the first picture's caption, I presume that ship JA8176 was delivered in August 1986! How could a -100 series be delivered in the late 1980's? I was under the impression that the construction of the -100 series ended much earlier, in the early to mid 1980's, not the later years of that decade.
The second picture's caption lists ship JA8176 as a Boeing 747-346(SR/SUD). Is ship JA 8176 a -100 or -300 series aircraft?
Where are people getting their information? Maybe it's just me, but I'm just really picky on accuracy I suppose!
Ibizajet A330 From , joined Dec 1969, posts, RR:
Reply 16, posted (13 years 4 months 1 week 5 days 13 hours ago) and read 1702 times:
The SUD conversion was ordered by 3 airlines: KLM (10x 747-206Bs converted), UTA (2x 747-2B3Bs converted) and JAL (2x 747-146Bs converted), making a total of 14 747-100/200S converted to SUD.
It's interesting to note the history of KLM's PH-BUH and BUI. Born as regular's 747-206Bs, they were converted to SUD, and then to Freighters SD...making them the only SUD and Freighter converted 747s.
Just for the record. The PH-BUL and the PH-BUK haven't been retired because KLM has retired the PH-BUP and the PH-BUR will be retired at the end of the summer schedule. Moreover, KLM seems to have some difficulties in selling both the BUK and the BUL as they are old and have a lot of flying hours and cycles.
PHBUH Converted to freighter
PHBUI Converted to freighter
Pretty interesting topic. After looking through Bill Harm's the only other carriers to have the SUD coversion done were KLM, who had all of their GE powered 742 converted, and Air France (presumably these were ex-UTA planes) who has 2 747-2B3-SUDs. The JAL 747SR-146B-SUDs are JA8170 and JA8176... both delivered in 1986, which has to make them the younger 747-100s out there. ANA also has two.
Jwenting From Netherlands, joined Apr 2001, 10213 posts, RR: 17
Reply 17, posted (13 years 4 months 1 week 5 days 12 hours ago) and read 1677 times:
All KLM ones will be gone by the end of 2005, maybe even earlier depending on the delivery schedule of the 777s.
That will likely be the end of the SUD/SCD, as it is indeed almost impossible to sell them because of their age and airframe life.
My guess is they'll be scrapped and the parts sold to 747-200 and -300 operators.
NorthStarDC4M From Canada, joined Apr 2000, 3147 posts, RR: 35
Reply 18, posted (13 years 4 months 1 week 5 days 12 hours ago) and read 1675 times:
AIRLINERS.NET CREW CHAT OPERATOR
JP Airline fleets list:
JA8170, Boeing 747-146B (SR/SUD), cn23390/ln636, pra:N6009F, finished 0083, del 0386, 4 PW JT9D-7A, MTOW 272155kg, C25,Y538, SELCAL GJ-HK
JA8176, Boeing 747-146B (SR/SUD), cn23637/ln655, pra:N60668, finished 0086, del 0986, 4 PW JT9D-7A, MTOW 272155kg, C25 Y538, SELCAL GJ-HL
Now the reason these are such late -100s is because the -200 has a heavier structure that is not required for a short range A/C (in fact all 747SRs are -100s, not -200s) so they were built as -100s near the end of Classic production.
Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety.