What's new
British Ordnance Collectors Network

This is a sample guest message. Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

Interwar bombs development - Clarke and Federal Laboratories

Dreamk

Well-Known Member
I found this exceptional photograph in ebay-fr - no details though the style is reminiscent of NARA photographs of the period - but no such photo is online on NRA ste and the NARA site is notariously (and strangely) poor in documentation on the 1930-1939 period
s-l1600 (1).png

Exceptional doument sas it shows models of bombs developped in the late 20s and early thirties in the US - without fuzes:
On the Left is a Clarke Aero bomb - designed originally as an anti-submarine bomb
The others are Federal Laboratories bomb models:
The 2ns from the left is the 120lb demolition bomb from 1931 that was superseded by the 100lb model in 1933
The 3rd from the left is the 100lb demolition bomb of 1933
The 4rd from the left is a 30lb Chemical bomb
The 5th from the left is the 25lb demolition bomb of 1931 - a model switfly discontinued as not potent enough (but exproted to Colombia and Brazil and possibly other countries)
The 6th from the left - I cannot identify
The one on the extreme right is another model of Federal laboratories that will be adopted by the USN as the 30lb M5 Frag
 
Last edited:
Possibly number 6, but with a solid lug rather than folding.
 

Attachments

  • IMG_0554.jpg
    IMG_0554.jpg
    3.1 MB · Views: 14
  • IMG_0555.jpg
    IMG_0555.jpg
    3.1 MB · Views: 14
  • IMG_0556.jpg
    IMG_0556.jpg
    3.8 MB · Views: 14
  • IMG_0557.jpg
    IMG_0557.jpg
    4.3 MB · Views: 15
some more related pics:
From the US National Archives - The Clarke bomb and its cone mounted fuze:
Screenshot 2024-04-08 221300.jpgScreenshot 2024-04-08 221346.jpgScreenshot 2024-04-08 221430.jpgScreenshot 2024-04-08 220117.jpg

From the no longer active website UXOINFO.com (a pity - the site is still online but one can no longer access parts of it, including the photo gallery, as one of their servers is no longer maintained):
The 25lb 1931 demolition bomb:
25lb demo experiemental 1931.jpg

The 120lb 1931 Demolition bomb:

120lbs Demo experimental 1931 2.jpg

From the Federal Laboratories Catalogue of 1933

The 50lb demolition bomb (the 100lb was similar, just larger):

50lb Demo Fed Lab.jpg

The 30 lb Chemical bomb

30lb Chemical fed lab.jpg
 
Top