CarLos Posted January 6, 2021 Share Posted January 6, 2021 (edited) My plan: to reduce the fuselage length in front of the wing, to reduce a little the fuselage width, to ignore the small difference in fuselage height; Use Milliput or similar to re-contour the nose. For the wings, to get rid of the glove. Tail elements, wing to fuselage fairing, engines and other details to think about later. What do you think? Anyone attempted it? I'd be interested to share ideas about the conversion. As refs I have Merlin Woodman's guide on converting C-135 to 720 on Airlinercafe, the Ultimate Boeing 707 Guide by David Hingtgen on the same forum, a PDF shared by Romeo Alpha Yankee on the 1/72 Boeing 727 from Heller Boeing 707? topic and a lot of stuff from books and the net. I am waiting for René Francillon's book that is travelling from a bookshop in Chicago to Portugal... A stations diagram of the fuselage would be very helpful! Anyone knows if can be found somewhere? Edited January 6, 2021 by CarLos Typo Link to comment Share on other sites More sharing options...
bzn20 Posted January 6, 2021 Share Posted January 6, 2021 The Dash 80 Fuselage is a different shape cross section and narrower . 720 Inboard ( between fuselage and No 2 and No3 engine ) wing has a thicker Chord , leading edge extension .For station numbers you'll need a Repair manual Chapter 53 . Might find one on ebay scanned to a CD. One seller that specialises in these CDs is superchalk64 . 1 2 Link to comment Share on other sites More sharing options...
Eric Mc Posted January 7, 2021 Share Posted January 7, 2021 Better off starting with a C-135 model. Minicraft do one these days. 3 Link to comment Share on other sites More sharing options...
Yankymodeler Posted January 7, 2021 Share Posted January 7, 2021 A KC-135 is a much better place to start. Depending on how fussy you are the fuselage needs to be narrowed 12 scale inches. This conversion is based on the ERTL 1/72 KC-135 with the narrowed fuselage. Eric aka The Yankymodeler 19 1 Link to comment Share on other sites More sharing options...
bzn20 Posted January 8, 2021 Share Posted January 8, 2021 (edited) Love that Eric . The Dash 80 was 5 abreast seating fuse width . Pan-Am's Jaun Tripp who more or less told Boeing increase the fuse diameter to give me 6 abreast seating ,I'll order 20 707s now . They would and he ordered there and then . He also ordered 20 DC-8s and a couple of years later some 720s too . Edited January 8, 2021 by bzn20 4 Link to comment Share on other sites More sharing options...
David H Posted January 8, 2021 Share Posted January 8, 2021 17 hours ago, Yankymodeler said: A KC-135 is a much better place to start. Depending on how fussy you are the fuselage needs to be narrowed 12 scale inches. This conversion is based on the ERTL 1/72 KC-135 with the narrowed fuselage. Eric aka The Yankymodeler Wow, that's just magnificent Eric! 1 Link to comment Share on other sites More sharing options...
Yankymodeler Posted January 8, 2021 Share Posted January 8, 2021 5 hours ago, David H said: Wow, that's just magnificent Eric! Thank you David, This is one of my most satisfying builds. Link to comment Share on other sites More sharing options...
Eric Mc Posted January 9, 2021 Share Posted January 9, 2021 Lovely Dash 80. Once Boeing learned that Douglas was going with six abreast seating, they felt that they had to modify their original five abreast plans for the 707. Link to comment Share on other sites More sharing options...
busnproplinerfan Posted April 29, 2021 Share Posted April 29, 2021 What is the reddish colour you used? Link to comment Share on other sites More sharing options...
Yankymodeler Posted April 29, 2021 Share Posted April 29, 2021 16 hours ago, busnproplinerfan said: What is the reddish colour you used? Colors were custom mixed, unfortunately I did not make note of ratios or even the exact paint used! The red is a mixture of red and brown and the yellow has a lot of white, all Model Master enamels as I recall. Eric aka, The Yankymodeler Link to comment Share on other sites More sharing options...
TheyJammedKenny! Posted April 29, 2021 Share Posted April 29, 2021 @Yankymodeler Wow! Uh...wow! That's all I can say. Did you use the article in FSM Vol 16, Issue 2, from February '98 as a reference? That's an amazing job. Jodie Peeler wrote the article for FineScale Modeler after doing the conversion herself. Link to comment Share on other sites More sharing options...
busnproplinerfan Posted April 29, 2021 Share Posted April 29, 2021 33 minutes ago, Yankymodeler said: Colors were custom mixed, unfortunately I did not make note of ratios or even the exact paint used! The red is a mixture of red and brown and the yellow has a lot of white, all Model Master enamels as I recall. Eric aka, The Yankymodeler Kind of what I figured for the red/brown. I have a colour picture of it taken years ago in a book but of course the picture could be off a bit. How much narrower is the Ertl fuselage from the Heller one? Link to comment Share on other sites More sharing options...
Yankymodeler Posted April 29, 2021 Share Posted April 29, 2021 7 minutes ago, busnproplinerfan said: Kind of what I figured for the red/brown. I have a colour picture of it taken years ago in a book but of course the picture could be off a bit. How much narrower is the Ertl fuselage from the Heller one? The Ertl kit is a KC-135, which is a different airframe than the 707. The KC-135 had a fuselage width of 144 inches compared to the 707's 148 inch width. The 367-80 was quite a bit more narrow at 132 inches. It may seem surprising, but to my eye the difference between the Ertl KC-135 and the Heller 707 is discernible. 2 Link to comment Share on other sites More sharing options...
busnproplinerfan Posted April 30, 2021 Share Posted April 30, 2021 3 minutes ago, Yankymodeler said: The Ertl kit is a KC-135, which is a different airframe than the 707. The KC-135 had a fuselage width of 144 inches compared to the 707's 148 inch width. The 367-80 was quite a bit more narrow at 132 inches. It may seem surprising, but to my eye the difference between the Ertl KC-135 and the Heller 707 is discernible. I'm sure with the two parked together you'd see it right away. Link to comment Share on other sites More sharing options...
Eric Mc Posted April 30, 2021 Share Posted April 30, 2021 I would never try to use any 707 model to replicate the 367-80. It is just too different an aircraft. The KC-135 is a much better starting point. 1 Link to comment Share on other sites More sharing options...
TheyJammedKenny! Posted April 30, 2021 Share Posted April 30, 2021 13 hours ago, busnproplinerfan said: I'm sure with the two parked together you'd see it right away I understand that if you had to work on one or the other aircraft as a maintainer, you would know that the two aircraft share only 20 percent of their parts in common. They are that different! When the depot at Oklahoma City modified a number of KC-135As to E's by swapping out the engines and horizontal stabilizers from mothballed 707s, the level of commonality between the two airframes increased, but only slightly. Perhaps there's a former -135 wrench-turner on the boards who can weigh in on this. Yes, do start with the C-135 for any back-dating to the 367-80, as it is the common "ancestor" of both aircraft. Better to try it in 1/144, though! 1/72 is a lot to handle. 1 Link to comment Share on other sites More sharing options...
busnproplinerfan Posted April 30, 2021 Share Posted April 30, 2021 2 hours ago, TheyJammedKenny! said: I understand that if you had to work on one or the other aircraft as a maintainer, you would know that the two aircraft share only 20 percent of their parts in common. They are that different! When the depot at Oklahoma City modified a number of KC-135As to E's by swapping out the engines and horizontal stabilizers from mothballed 707s, the level of commonality between the two airframes increased, but only slightly. Perhaps there's a former -135 wrench-turner on the boards who can weigh in on this. Yes, do start with the C-135 for any back-dating to the 367-80, as it is the common "ancestor" of both aircraft. Better to try it in 1/144, though! 1/72 is a lot to handle. Good notes. A plane that been around for this long sure evolves. 1/144 is way cheaper that's for sure, at least to buy new. 1 Link to comment Share on other sites More sharing options...
giovanni Posted April 16, 2022 Share Posted April 16, 2022 (edited) Yankymodeler: SIMPLY FANTASTIC, OUTSTANDING, IMPRESSIVE RESULT!!!!!!! You have great modelling skills!!! Edited April 16, 2022 by giovanni 2 Link to comment Share on other sites More sharing options...
bzn20 Posted April 16, 2022 Share Posted April 16, 2022 (edited) I've mentioned this before somewhere .. The Boeing 707 , 720 are built with a different material specification ,the type of Al Alloy , a different design specification , Safe Life versus Fail Safe . 707and 720 Built with DIFFERENT jigs to the C-135 . Fuselages not only different diameter/width but a different cross section shape. 707/720 oval ish v Dash 80 and -135 rounder design .The 720 wing has a compound leading edge sweep ,thicker Chord inbd of the inboard engines No 2 left and 3 right engines . the -320 707 has a bigger wing area longer span ,different trailing edge and greater flap area with the added inboard Flap fillet . Longer than the 707-120 and th hot rod built for QANTAS only , the oddball 707 -138B and 707-227 ( built for Braniff only ) I've worked on quite a few 707s at Lasham and at Jet Aviation , Basel , Monarch 720 at Luton and we the VC10 Tank Team on night shift spent a few hours or so assisting a USAF Crew Chief on a KC-135 and climbing all over it in Base Hangar at Brize around 1978 . Tiny inside. Just remembered ... Laying on the Flying Boom Operator's cushioned position looking out the windows . Edited April 16, 2022 by bzn20 Link to comment Share on other sites More sharing options...
Yankymodeler Posted April 16, 2022 Share Posted April 16, 2022 3 hours ago, giovanni said: Yankymodeler: SIMPLY FANTASTIC, OUTSTANDING, IMPRESSIVE RESULT!!!!!!! You have great modelling skills!!! Thank you, really nothing special, any modeller could do the same or better 1 Link to comment Share on other sites More sharing options...
giovanni Posted April 17, 2022 Share Posted April 17, 2022 (edited) Well, it looks very realistic to me, with a very nice, polished paint job! If I can ask, how did you manage to make such perfectly straight wings and fuselage on that ERTL model? Did you polish the paint at the end? Edited April 17, 2022 by giovanni Link to comment Share on other sites More sharing options...
Yankymodeler Posted April 23, 2022 Share Posted April 23, 2022 On 4/17/2022 at 4:54 AM, giovanni said: Well, it looks very realistic to me, with a very nice, polished paint job! If I can ask, how did you manage to make such perfectly straight wings and fuselage on that ERTL model? Did you polish the paint at the end? Thank you! Construction was long ago, but I don't recall any special construction techniques, just careful alignment. I think perhaps I epoxied a section of square brass tube to the inside of one of the wing surfaces in an attempt to keep it from drooping too much as the model got older. Just looking at the kit in the case it seems to have been successful! The finish was lightly polished as the model represents the Dash 80 on it's first flight and would have been as clean and shiny as it ever would be. Eric 1 Link to comment Share on other sites More sharing options...
giovanni Posted May 22, 2022 Share Posted May 22, 2022 Thank you very much for the reply! Yes, the job seems perfect! A success! Giovanni 1 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now