Thanks Ron - I expected they would be "scarce" here in Oz - wondering if the UK guys have some views on this?
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British Mk I 100lb Anti-submarine bomb c1940
- Thread starter WATU
- Start date
They come from "British Bombs and Fuzes" Nov 1944 USNBD
No, it's not this one.
British bombs – Fuzes, Pistols and Detonators of WW2
In this blog I have collected together comprehensive information on British WW2 aerial bomb fuzes and pistols. What’s the difference? A fuze contains a charge of its own to initiate the main …
stephentaylorhistorian.com
The site https://stephentaylorhistorian.com/2018/03/03/british-bombs-fuzes-pistols-and-detonators-of-ww2/ has simply uploaded copies of pages from the USNBD manuald - Always look for original sources not for web sites that upload material taken from other sources without mentioning their origin - the origin may be a good one as in the present case, but may be a totally fantasy one - I'll just mention the iconic case case of the Stankovic so-called "106kg" bomb on the web as an example of such fantasy.
here for insance 2 pages from the original USNBD - you can see at once the source of this website
The original USNBD manual can be downloaded from the excellent BulletPicker site:
here for insance 2 pages from the original USNBD - you can see at once the source of this website
The original USNBD manual can be downloaded from the excellent BulletPicker site:
Attachments
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Well, this may be the 2nd example:
No markings, stamps nor dates - which initially lead me to believe it was most likely to be a US-made one as the US adopted the 20lb Coopers bomb in WW1, which was later developed into the US 25lb bomb with a Mark XII nose fuze.
Interesting enough, it has a Whitworth thread rather than a standard metric ISO thread , perhaps indicating a US manufactured No 7 export for the British rather than for US service? (similar to the P14 Pattern rifle made in .303 cal under contract in the US during WW1) Or did the US initailly adapt the British design (& threads) for both export and US service?
Thoughts / comments?
Thanks
Cheers
Drew
BTW - It was sold as a "German WW2 Buzz bomb fuze" - a long time ago!
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Very nice example Ron - well marked as expected - thank you for sharing!
Investigating further, it appears that although the US produced an exact copy of the British Cooper's Bomb - referred to as the Fragmentation Bomb Mark II-B, the US manufacturers (aka Paige-Detroit Motor Car Co / Lycoming Foundry) were not equipped to cut the British (Whitworth) 55-degree rounded thread profile and instead re-tapped the fuse /mechanical junctions using the standard US 60-degree V-threads.
References:
1) America's Munitions 1917-1918
2) Google Research:
3) It can be assumed from the above that the US did not produced 20ib Cooper's bombs for Britain under licence.
My current opinion is that the example shown is a British made No16 Nose pistol (has a Whitworth 16G thread) or a conversion from a No7 (Whitworth 14G) to fulfill late war operational demands for the 20lb Cooper's Bomb. Eitherway an interesting example indeed.
Cheers
Drew
(Hum, maybe it is a WW2 German Buzz Bomb fuze................)
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