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Jakko’s Sherman BARV

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Porpoise sledges were towed by the tanks that needed the ammunition in them, and anyway, they did so with simple crossed tow bars:

Porpoise_sledge_WW2.jpg

(source)

Not the best photo, but the best one I could find, and you can see the tow bars are fairly thin and not at all like the thing on the BARV.
 
Something is strange about this hydraulic cylinder. Have you ever thought that it could be an external connection for a hydraulic tool, or something to do with diving?
 
Why not write to the experts at the Tank Museum, Imperial War Museum or the Royal Marines Museum? If they don't know then who does?
Steve
 
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Something is strange about this hydraulic cylinder. Have you ever thought that it could be an external connection for a hydraulic tool, or something to do with diving?
That thought also crossed my mind, indeed. But even then I can’t work out the hows or whys of it. For example: why would they use the recoil cylinder of an anti-tank gun for this? Maybe because it was available and worked as a pressure vessel. But then, why are those big lugs with the pin through them on the forward end? Those are completely unnecessary if it is a tank for air or hydraulic oil or something like that.

To be honest, I’m not even clear on whether it was welded onto the tank or not … It definitely is on the BARV in the Ahmednagar museum, but doesn’t seem to be on the running one, for example. Which could mean the museum welded it to stop it being stolen, of course, or maybe that the running tank has subtler welds.

Why not write to the experts at the Tank Museum, Imperial War Museum or the Royal Marines Museum? If they don't know then who does?
I had also thought of that, and somebody else suggested it too on another forum — and I think I might just do that. Not that I have much hope of getting a useful answer, but it can’t hurt to try.
 
At first glance it looked like the ram cylinder used on Sherman bulldozer variants but I couldn't find any pics of it in BARV use.
 
Trouble is Jakko it's now something you've "just gotta know". So much speculation :smiling3: Don't know how you'll get the definitive answer but someone must know.
 
I'm sure a nice email to the Tank Museum at Bovington will, (fingers crossed), get the answer you seek.
 
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I expect that towing a bogged down tank needs a stronger tow bar than towing a sledge.
Definitely, and that’s why the BARV carried two tow bars on the superstructure roof:

img_1329-jpeg.514614


Which is part of why I think this is not towing-related. But nobody across four different forums seems to have any clue what it actually is for.

I'm sure a nice email to the Tank Museum at Bovington will, (fingers crossed), get the answer you seek.
I intend to do that, and/or to the museum in Portsmouth where they have a real one … hopefully someone will reply, and even better would be if it they do so with an answer ;)
 
Well, I found a better photo of a restored example at but other than convincing me that it's not a towbar, that doesn't help much. This one is definitely welded in place, but as you said Jakko that might just be to stop thieves. It's also had something flame-cut off towards the left-hand end.
Pete
 
To be honest it looks like a refillable compressed gas or liquid cylinder with an oversized coupling shackle on the end…..god knows what it’s use was though…..I can’t think of a function that pushes or pulls from one end only….the openable end isn’t strong enough to take any pressure and what looks like the pressure charge port is fitted to that end as well……it could be some sort of hydraulic cylinder that’s bolted in place by the casting directly behind the coupling shackle, perhaps for a dozer blade as Paul said earlier, but there’s only one on the vehicle isn’t there, the other side has the tools, not another cylinder.
Interesting conundrum this one :thumb2:
 
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Well, I found a better photo of a restored example
Yep, I had seen that photo too already :) The only good pictures of the thing you can find, are of preserved vehicles like this one, which doesn’t help at all with figuring out what it’s for. However, I’ve written e-mails tonight to both the REME Museum and Bovington to ask if they can shed some light on it.

I can’t think of a function that pushes or pulls from one end only….
It can’t really be anything other than a 6-pounder recoil/recuperator cylinder — compare it to the photo I posted earlier. The sections that are welded to the tank are the rails the barrel rides in, so the whole thing is essentially upside-down and the front end is pointing to the rear of the tank. I suspect the crosspin at the front end is what held the piston to the barrel.

In addition to pondering this odd piece of kit, I also did a little more work on the model

View attachment 515983

I had noticed in the photos of the running example that it had mesh over L-profile at the front, “inside” the bumper, but I wasn’t sure if this was an original feature or something added to the restored vehicle for some reason. After finding another photo that showed it, I added it by making some L-profile from strip, cutting three lengths and glueing them to the hull before adding a bit of mesh on top of them.
 
Agreed ref 6pdr recuperator Jakko. I’ve had a good look this morning and the front end with the toggle bolts is the same as late mark 6pdrs. The breech end has been modified though. It looks like the cross pin was added just for this vehicle.
Here are a couple of restoration pictures I’ve found that show the breech end on the gun more clearly.
IMG_2339.jpeg
IMG_2341.jpeg
IMG_2342.jpeg
IMG_2343.jpeg
It certainly looks like this was a repurposed component used on the BARV, but what its function was is a bit of a mystery?
 
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Good photos, especially that last one seems to confirm that they cut the cylinder down and added the plates with the pin. Thanks :)

This morning I found a reply from the REME museum in my spambox, but it only says that my e-mail has been forwarded “to the relevant person” so I have some hope that I might get an answer in the near future.
 
Good photos, especially that last one seems to confirm that they cut the cylinder down and added the plates with the pin. Thanks :smiling3:

This morning I found a reply from the REME museum in my spambox, but it only says that my e-mail has been forwarded “to the relevant person” so I have some hope that I might get an answer in the near future.
I’m all ears on a reply. I simply can’t think of any application that needs what is, in effect, a single oversized shock absorber :smiling:
 
Only one on board? All I can think of is if something needed ramming out of the way, or a run up to move something? Take a bit of sting out of the impact.
 
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I’m all ears on a reply. I simply can’t think of any application that needs what is, in effect, a single oversized shock absorber :smiling:
You don’t know how close you are :)

View attachment 516015

The REME museum’s archivist, Celia Cassingham, replied to tell me they’ve had that question before and helpfully provided that scan and a link to a page on their web site that also includes the scan above.

This, I think, also explains the oval ring at the front of the left catwalk (that is still missing from my model): that must be a guide for the cable going to the 6-pounder recoil mechanism.

Bovington also got back to me, saying they think they know what bit I mean but asking me to send a photo to make sure, which of course I did. With a bit of luck they will be able to confirm or even explain some more about it.
 
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