Abandoned Project Posted January 30, 2020 Share Posted January 30, 2020 First, my little backstory.... After Boeing completed the 747-600 for the British Government in BOAC colours the interest in other 747 derivatives was rekindled. As the cruise ship trade slowly grew in the south Atlantic the British government became interested in a long range 747 to reach the Falkland Islands with a direct flight from British Airways home base of Heathrow airport. Their aim was for BA to fly directly to the Falkland Islands then across to Santiago in Chile and then return to the UK via the Falkland Islands. So late in 1999 the British government then encouraged BA to ask Boeing if it was possible to get a 747 with a range of over 8,000nmi without a ten digit price tag. Early in 2000 they were told yes. The answer came in the form of the 747-500 to which BA said "no" due to it being too big and it would have a ten digit price tag. So after some time had passed, in 2001 Boeing went back to BA with a choice of the 747-400X, the 747-X and the 747-Xstretch. The 747-400X was ruled out immediately due to a lack of range and the 747-Xstretch went as well due to being too much like the 747-500, which left the 747-X which BA liked but felt was a bit too big for the new runway at Stanley. Boeing then offered something slightly smaller than the 747-X in the form of the 747-400Y. This was the original base design of both the 747-X and -Xstretch. With new engines and a small fuselage extension due to a wingspan increase by adding wing root extensions, the larger wing box could house extra fuel tanks and the fuel capacity increase would result in a range of over 8500nmi. By using the existing -400F undercarriage and wings from the inner wing pylon outwards costs could be kept to a minimum. With a range of almost 8,800nmi the production model was named the 747ULR (ultra long range) to differentiate it from the new 747-400ER, the production name for the 747-400X. Boeing was building the 747-400ER with the standard length fuselage and wingspan of the 747-400 for Qantas. After much deliberation as to the choice engines BA gave way to Boeing's wishes for the new General Electric engine featuring some of the latest developments in fan blade and compressor technology being developed for the 777-300ER resulting in a better fuel consumption rate than the RR Trent 900s on the 747-600. Although both BA and the British government had been quietly hoping to have the 747ULR in service for the 20th anniversary of the Falklands war, the 747ULR didn't enter service until August 2003, due to delays in the engine production, with the registration G-BFLK City of Stanley in the Landor scheme as voted for by the Falkland Islands Legislative Council. It then flew scheduled flights across the south Atlantic to the Falklands til its replacement in 2020 with an Airbus A350. In reality it all started with the 747-400IGW (increased gross weight) proposal, which in turn produced the 747-400X and 747-400Y. The 747-400X went into production as the 747-400ER. The 747-400Y proposal was developed into the 747-X proposal, which also was the basis for the 747-Xstretch both of which never left the drawing board but provided features for the 747-8. The work (not much) so far... ready for stretching 4 Link to comment Share on other sites More sharing options...
HOUSTON Posted February 17, 2020 Share Posted February 17, 2020 1 Link to comment Share on other sites More sharing options...
HOUSTON Posted February 19, 2020 Share Posted February 19, 2020 how goes it? Link to comment Share on other sites More sharing options...
Abandoned Project Posted February 19, 2020 Author Share Posted February 19, 2020 4 hours ago, HOUSTON said: how goes it? Stretching the wing roots at the moment so that I can get the fuselage stretch right. 1 Link to comment Share on other sites More sharing options...
HOUSTON Posted February 20, 2020 Share Posted February 20, 2020 great. keep it going.. 1 Link to comment Share on other sites More sharing options...
Romeo Alpha Yankee Posted May 13, 2020 Share Posted May 13, 2020 Any pictures of current progress AP? Link to comment Share on other sites More sharing options...
Abandoned Project Posted May 13, 2020 Author Share Posted May 13, 2020 50 minutes ago, Romeo Alpha Yankee said: Any pictures of current progress AP? Will post asap. Currently working on the wings for this and my -600 and a possible 747-Xstretch. 1 Link to comment Share on other sites More sharing options...
Lewis95 Posted May 15, 2020 Share Posted May 15, 2020 Following this with interest! Link to comment Share on other sites More sharing options...
Abandoned Project Posted May 15, 2020 Author Share Posted May 15, 2020 37 minutes ago, Lewis95 said: Following this with interest! Let me know how it ends Link to comment Share on other sites More sharing options...
Abandoned Project Posted May 16, 2020 Author Share Posted May 16, 2020 in one piece, awaiting primer and filler I used a small section of my first attempt at a 747-600 to do the stretch. 2 Link to comment Share on other sites More sharing options...
Abandoned Project Posted November 30, 2020 Author Share Posted November 30, 2020 Currently working on the (possibly insane) idea of hanging some GE90-115 engines off my -400Y, which GE did with one on their testbed 747. It's a 747-8i pylon with the revezda GE90-115 engine. The beauty of this engine is that the pylon is separate from the nacelle. Just a rough mock up on a 747-8i 3 Link to comment Share on other sites More sharing options...
Romeo Alpha Yankee Posted December 1, 2020 Share Posted December 1, 2020 Interesting idea AP, would you have the ground clearance required with the bigger donks? 1 Link to comment Share on other sites More sharing options...
Abandoned Project Posted December 1, 2020 Author Share Posted December 1, 2020 @Romeo Alpha Yankee here's one GE prepared earlier And with the extra height from the wing root inserts it just might work... 2 Link to comment Share on other sites More sharing options...
Abandoned Project Posted December 28, 2020 Author Share Posted December 28, 2020 All the parts cut and ready for extending the wing root Just leaves the top to do now 1 Link to comment Share on other sites More sharing options...
Abandoned Project Posted December 28, 2020 Author Share Posted December 28, 2020 Extended the belly pan ready for the wings @Romeo Alpha Yankee this is all focusing on the -600, honest guv'nor 2 Link to comment Share on other sites More sharing options...
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