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Nose fuze No870

MINENAZ16

Well-Known Member
Ordnance approved
Hello,

I heard about a nose bomb fuze no 870 (modified no 845)
Is it a legend ?

Regards
 
I have found something in Peter Voß from his book, 98 British Bombenfuze, up to 1945.
 

Attachments

  • Kopfzünder No. 845 elektrischer Kippzünder.jpg
    Kopfzünder No. 845 elektrischer Kippzünder.jpg
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  • Kopfzünder No. 845 schl. des Schaltkreises.jpg
    Kopfzünder No. 845 schl. des Schaltkreises.jpg
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  • Kopfzünder No. 870 elek. Zünder.jpg
    Kopfzünder No. 870 elek. Zünder.jpg
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  • Kopfzünder No. 870 Schließen des Schaltkreises.jpg
    Kopfzünder No. 870 Schließen des Schaltkreises.jpg
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Thanks guys.
Deminest quotes the ww2 German expertise but I'd like to know if there is a reference in official British documentation.
 
My unofficial lists do not list the 870. The nearest I have to an official publication is "British Bomb & Rocket Pistols and Fuzes 1914 - 2007" by David Andrews and Alan Swan. They make no mention of it either.

TimG
 
In all my English documents only model 845 is mentioned. From an 870 nothing is known. Harry
 
Found today a document from the Dutch Air Raid Service that after in the early morning of 16 september 1943 a 12,000 lb. HC Bomb had detonated in a canal some 2,2 km west of the German border there was a crater of 25 meter in diameter and the canal was at the spot 2,5 meter deeper than before the explosion. They found pieces of the bomb body and a part of a fuze with the markings No. F 870 MK I S.M.P. 8/43. The bomb was dropped by one of the Lancasters of 617 Squadron (the Dambusters) that had to attack the Dortmund-Ems canal at Ladbergen (Germany). This attack was operation GARLIC and was a disaster, the night before the operation was canceled during the flight and one of the Lancaster crashed in the North Sea. On the night from 15/16 september 5 of the 8 Lancasters did not return home. As mentioned above, the No. F 870 fuze was a converted No. 845 fuze with a delay of 30 seconds till 3 minutes after impact and probably special made for the low level attacks of the Dordmund-Ems canal.

The Germans made a drawing of the bomb and the fuze and first thought that the bomb was 9000 lb. (3 sections of each 3000 lb.).

Which factory is S.M.P. and did they also made the No. 845 fuze?
What is the meaning of the letter F before 870?

Greetings Antoon
 

Attachments

  • 64454EB3-1796-46FF-A35C-2DCA99708615_1_201_a.jpeg
    64454EB3-1796-46FF-A35C-2DCA99708615_1_201_a.jpeg
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S.M.P. = Screw Maschine Products, Bucks
 

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Here is a better drawing of the No. F 870 Mk I fuze. The biggest change is removal of the mercury switch from the original No. 845 fuze.

Still want to know what the letter "F" means in the name of the fuze?
 

Attachments

  • 6AFD8894-E63B-4A2D-9568-EC928FD0A4F1_1_201_a.jpeg
    6AFD8894-E63B-4A2D-9568-EC928FD0A4F1_1_201_a.jpeg
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