woody37 Posted March 8, 2017 Share Posted March 8, 2017 I've not come across any photos that show the rear end of the enlarged doors to be any different that if a turret was installed or not, CMR do appear to be correct in the two options they supplied with their mk.ii conversion 1 Link to comment Share on other sites More sharing options...
FZ6 Posted March 8, 2017 Share Posted March 8, 2017 It's a shame the Freightdog Tallboy set is not currently available as I'd like to do a Tallboy Lancaster at some point. Link to comment Share on other sites More sharing options...
Finn Posted March 9, 2017 Share Posted March 9, 2017 Here is a 12,000lb cookie being dropped: How the big ones were hooked up: Jari 2 Link to comment Share on other sites More sharing options...
brewerjerry Posted March 9, 2017 Share Posted March 9, 2017 Hi A interesting page describing bomb loads and doors https://masterbombercraig.wordpress.com/avro-lancaster-bomber/bomb-loads/ cheers jerry 1 Link to comment Share on other sites More sharing options...
Selwyn Posted March 9, 2017 Share Posted March 9, 2017 On 07/03/2017 at 10:39 AM, brewerjerry said: Hi I only query it as :- the cookie was 30" in dia the tallboy 38" in dia plus whatever 'hangar' was used for each bomb So personaly i would have expected different sized doors cheers jerry Well The Hangar would add about 30-50 feet to the diameter,which would not fit under the aircraft. I would much prefer just adding the height of the hanger (or suspension lug as its known)! Selwyn (Running for cover and giggling!) 1 Link to comment Share on other sites More sharing options...
old thumper Posted March 9, 2017 Share Posted March 9, 2017 I have read that the 8000 lb, 12000 lb and tallboy bombs were all 38" in diameter. The 12000 lb cookie was however 16'4" long and the tallboy 21 feet long. My guess is that (as someone has already suggested) the BII bomb doors were probably meant for the shorter 8000 lb cookie which was fatter than the original 4000 lb device. I don't think BII's would ever had carried the 12000 lb bomb as it was a bit to late war and not so many were used as the smaller cookies. Hence as Steve has noticed that the BII bulge began some way further back along the door. This doesn't answer the question of what the rear of the tallboy bomb looked like though. Link to comment Share on other sites More sharing options...
Seahawk Posted March 9, 2017 Share Posted March 9, 2017 Bombs Gone! (Macbean and MacTaggart, PSL, 1990) confirms (p.79) that the diameter of the 8,000lb and 12,000 HC bombs was 38" as opposed to 30" for the 4,000lb and explicitly states that "contrary to popular belief [the 8,000lb MC] was not the body sections of 2 4,000lb HC bombs" even if it did comprise "two 4,000lb cylindrical sections bolted together and fitted with a drum tail". The 12,000lb HC was an 8,000lb HC with an additional 4,000lb section bolted on. However "to ensure ballistic stability it had to be fitted with a 6-finned ballistic tail some 2 feet longer than the cylindical drum section of the 8,000lb bomb. Thus, with the longer tail and an additional section, it could only be carried on specially-modified Lancasters" (p.80). There is a nice drawing of the 12,000 HC but no dimensions are provided. As far as Tallboy is concerned, a dimensioned German drawing (p.146) gives the diameter as 950mm which comes out as 37.4" so prob 38" in reality. Total length of the Tallboy is given as 6350mm which is 20'10", again close enough to 21'. 2 Link to comment Share on other sites More sharing options...
Finn Posted March 9, 2017 Share Posted March 9, 2017 This large file, 50MB, here: http://www.lexpev.nl/downloads/britishexplosiveordnance1946.pdf has lots of drawings, details, dimensions, markings, etc of British bombs from the small ones to the big ones. Jari 3 Link to comment Share on other sites More sharing options...
Finn Posted March 11, 2017 Share Posted March 11, 2017 Found these by chance: Jari 5 Link to comment Share on other sites More sharing options...
Jure Miljevic Posted March 11, 2017 Share Posted March 11, 2017 Great drawings, Jari, let me be the first one to thank you! Cheers Jure Link to comment Share on other sites More sharing options...
cngaero Posted March 11, 2017 Share Posted March 11, 2017 On 09/03/2017 at 8:28 AM, brewerjerry said: Hi A interesting page describing bomb loads and doors https://masterbombercraig.wordpress.com/avro-lancaster-bomber/bomb-loads/ cheers jerry What a great link. That's next week spoken for. Link to comment Share on other sites More sharing options...
Finn Posted March 17, 2017 Share Posted March 17, 2017 This video shows 8000lb and 12000lb cookies being put together and loaded, a few brief glimpses of bulged doors can be seen: Jari 3 Link to comment Share on other sites More sharing options...
old thumper Posted March 17, 2017 Share Posted March 17, 2017 Well those bomb doors (at the very end of the clip) look to bulge some way back from the front and are not pinched at the rear. Link to comment Share on other sites More sharing options...
Jure Miljevic Posted March 17, 2017 Share Posted March 17, 2017 Hello, Old Thumper Agreed, doors in the footage are not pinched at the rear, but I am not so sure about the bulge at the front end. To me they look more like bomb bay doors on Jari's drawing or those from Matchbox kit. Cheers Jure 1 Link to comment Share on other sites More sharing options...
Finn Posted March 17, 2017 Share Posted March 17, 2017 Check the 0:51, 1:05 and 3:45 marks and you can see evidence of bulges. Jari 1 Link to comment Share on other sites More sharing options...
Jure Miljevic Posted March 18, 2017 Share Posted March 18, 2017 Hello, Jari Thanks for pointing out interesting time periods. On 3:45 one can see the extention on the lower part of a fuselage to match pinched door shape when closed. Cheers Jure Link to comment Share on other sites More sharing options...
Finn Posted March 18, 2017 Share Posted March 18, 2017 (edited) Here is another video, mostly showing a Lancaster being built, check the 4:35 mark and you'll see quite clearly unpainted bulged bomb bay doors: Jari Edited March 18, 2017 by Finn 2 Link to comment Share on other sites More sharing options...
dogsbody Posted March 18, 2017 Share Posted March 18, 2017 At about 10:30, I see they slipped a Lanc B.II into the video. Chris Link to comment Share on other sites More sharing options...
Jure Miljevic Posted March 18, 2017 Share Posted March 18, 2017 Hello, Jari Thank you very much for this link, very informative WWII Lancaster film. This settles the matter of Tallboy bomb bay doors, as far as I am concerned. Thanks again, happy modelling and cheers Jure Link to comment Share on other sites More sharing options...
stevehnz Posted March 19, 2017 Share Posted March 19, 2017 (edited) Great clip, that title shot, obviously at about the 7:55 mark in the clip appears to show the rear shape of the bulged doors well, I'm wondering if they areTallboy or Cookie doors, I couldn't make out the front shape clearly though I think I'm seeing the long taper as in Tallboy type rather than stepped back like the Airfix Mk II but the rear certainly agrees with the Airfix Mk II kit, though of course Mk I& IIs dropping the big cookies got the same doors. This website has further info about this plane & the photo of the crowd around the aircraft after its roll out from the Victory factory clearly seems to show the long tapered doors, so were Tallboy doors simply a variation on the large cookie doors & not something unique to the Tallboy machines? Steve. Edited March 19, 2017 by stevehnz 2 Link to comment Share on other sites More sharing options...
Smiffy Posted June 13, 2017 Share Posted June 13, 2017 Found this while searching 9 Sqn Lancs. May be useful to some. Original page link here. https://weaponsandwarfare.com/british-aerial-ordnance-exotica/ 2 Link to comment Share on other sites More sharing options...
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