British Hedgehog Bomb Dimensions

[MikeC]

Hi, seeking the dimensions of the British Hedgehog anti-submarine bomb, please. A post elsewhere on this forum provides a diameter of the bomb as 7 inches (178mm) which is a great start. I'm also looking for the overall length with or without the fuze, the diameter of the tail fin and the diameter of the tail tube that connects the tail fin assembly with the head, please. If anyone has an ordnance manual, dimensioned drawing or a bomb in their collection, I'd be very grateful for the information, please.

Thanks,
Mike

 

[BMG50]

Not sure where you live but Gosport Naval Museum may have one or details of sizes.

 

[MikeC]

Thanks BMG50, I'll get in contact (bit far to travel ... I'm in the USA)

 

[BMG50]

Once you found one dimension you can usually work out the rest. They should be helpful.

 

[BMG50]

Explosion Museum of Naval Firepower | National Museum of the Royal Navy

Uncover the incredible stories of designers, makers, and seaman who worked on armaments over the centuries and listen to first-hand accounts of the munition workers who dealt with dangerous materials.Housed inside Priddy’s Hard, an 18th Century former Royal Navy armaments depot, you can marvel...

www.nmrn.org.uk

 

[Dreamk]

The IWM states for the one in its collection:
"whole: Diameter 178 mm., Length 880 mm."
https://www.iwm.org.uk/collections/item/object/30023797
And the USN museum states:
Length: 3 ft, 10.5 in
Diameter: 7.2 in
Warhead: 30lbs Contact, High Explosive
Total Shell Weight: 75lbs
Range: 200yds
Sink Speed: 24fps
First Flight : 1942
https://www.williammaloney.com/Avia...Charges/pages/11HedgehogAntiSubmarineMort.htm
An actual USN example on sale indicates
"the entire piece measures 34¾” tall with the tail assembly having a 7” diameter. "
https://www.ima-usa.com/products/or...-tail-assembly-with-styrofoam-display-warhead

 

[ThomasP]

Not sure if this would help. For the USN Hedgehog, from NAVORD OP 1664 of 1947: