Talk:Hobart's Funnies

message: Should there be at least some mention of the other combat engineering vehicles designed before the Funnies? Lots of folks had bridgelayers, swimming tanks, fascine carriers, close-support tanks and mine-clearing vehicles. The funnies were certainly the most elaborate but they were not unique. DMorpheus 16:05, 8 December 2005 (UTC)
replies: text: As stated in the text "Many of the ideas had already been tried, tested or were in experimental development". The history of swimmers is mostly under DD, Close support howitzers are mentioned under the various tanks themselves. Fascine mentions pre '44 use. The Funnies are the collection seen as a whole with explanations of the various elements. GraemeLeggett 16:26, 8 December 2005 (UTC)

text: The crocodile was a gun equipped tank with a flamethrower attachment - it never stopped being a gun tank even when the flamethrower was fitted. GraemeLeggett 16:38, 30 January 2006 (UTC)
replies: text:  Well, yes, they retained their main gun and coax, but they had the burden of towing a large trailer when fitted with the crocodile. Sorry if I was unclear with my comment, but what I meant was that a crocodile could easily shed the whole kit (flame gun, attachments, and trailer) and thus resume the normal Churchill MK VII configuration. DMorpheus 02:03, 5 March 2006 (UTC)

text:  I'm no expert, but the Crocodile must have had a pipe running the length of the tank to carry fuel to the flame projector. Also, there would be a towing hitch with some kind of flexable coupling. Presumably, these weren't found in regular Churchills and would remain in place if a Crocodile was converted to a regular tank (probably too much bother to remove). So if you looked hard enough, a Crocodile would always be distinct from a regular Churchill MK VII. Catsmeat 13:26, 12 March 2006 (UTC)
replies: text:  a pipe running the length of the tank to carry fuel to the flame projector - you are right - this ran externally underneath the hull of the Churchill Crocodile and then up through a hole in the floor armour plate to the flame projector, and was armoured, resembling a longitudinal ridge running along the underside of the hull from rear to front, offset from centre. If I remember correctly, later Churchills had the aperture in the floor included as-standard and it was normally covered by a bolted-on circular armour-plate disc on non-Crocodiles. Ian Dunster 22:30, 3 November 2006 (UTC)

text: A couple of years ago, British TV programme (it specialised in dives on marine wrecks, can't remember the name) investigated this. Their conclusions (memory subject to the ravages of age and decent wine) were that the DDs were launched too far out (2 miles? - blamed the LCT skippers), but the direct cause was that the DDs were swamped by cross waves. Sea currents at that point were strong and the DDs were drawn across the width of the beach, but as they turned to maintain their course for the beach, they were swamped from the sides. Interestingly there were few, if any, casualties but the assault infantry had lost the armoured support that was immediately available on other beaches. Folks at 137 21:19, 30 January 2006 (UTC)
replies: text:  The plan at Omaha was to launch from about 6,000 yards out. Where the plan was followed most of the tanks swamped. DMorpheus 02:03, 5 March 2006 (UTC)

text:  The plan was to launch all DD Tanks from about that distance from the shore.    The disaster at Omaha was due to rough seas and inexperienced DD crews. The DD's at Sword beach, for example, were launched 5000 yards off shore and 28 out of 32 made it. While the DD system was never very safe or reliable, neither was it the complete deathdrap contraption othes make it out to be. Catsmeat 13:18, 12 March 2006 (UTC)
replies: text: Common sense would dictate that a tank fitted with a relatively flimsy canvas flotation screen was a temporary expedient to getting the vehicle ashore and was not intended for travelling great distances on a sea where large waves could develop. The intention was for the LCT or Landing Craft to be brought in as close to the beach as possible, minimising the distance the DD vehicle had to travel on its own. This ought to be fairly obvious, but, in some cases for whatever reasons known only to the people concerned, this was not followed. For D-Day the DD vehicle was only originally intended to surmount the 'Rommel's Asparagus' and other similar shore obstacles that prevented a Landing Craft actually beaching on the shore and opening its ramp. A distance of 5,000 yards seems excessive and in that case presumably the sea conditions were judged safe in the British and Canadian sectors, the Americans just having bad luck in theirs.  —Preceding unsigned comment added by 86.112.75.216 (talk) 09:29, 12 August 2010 (UTC)
replies: text: There is a detailed account about the deployment of the DD's in Chapter 6 , Omaha Beach: D-Day, June 6, 1944 By Joseph Balkoski . --Aspro (talk) 14:32, 12 August 2010 (UTC)

message: Petard mortar on AVRE: I added text saying that the petard was unusual because it needed to be reloaded externally, by a crewman pushing a round into the mortar from the hull below. That is a unique design feature. The editor who eliminated the comment seemed to think that feature existed *because* the petard was a mortar. Not so. Mortars have been mounted in other tanks with internal loading - in the Sherman, for example. Mortars need not be muzzleloaders, alhtough they often are. The Petard was a breechloader, but could not be reloaded from inside the turret. DMorpheus 15:21, 7 June 2006 (UTC)
replies: text: I was working on the basis of it being a spigot mortar and a large bore one at that. GraemeLeggett 15:41, 7 June 2006 (UTC)
replies: text: No! If you look up the definition of a Spigot Mortar you will see that it is an extremely unconventional design. Instead of having a pipe you place a projectile in, you have a simple rod which matches with a hole on the base of the projectile. In essence, you feed the mortar into the projectile. If you look at the picture of the petard you can see that this is not the case, it is of traditional design. Pissedpat 09:26, 17 April 2007 (UTC)
replies: text: You've misintepreted the definition. The "spigot" refers to the internal workings, which may or may not be enclosed in an outer barrel. The PIAT, for example, is also a spigot mortar. The mortar on the AVRE is widely referred to as a spigot more, even by the Royal Engineers Museum: "the turret was adapted to mount a Petard spigot mortar in place of the 2-pounder gun fitted to the standard tank"  I am therefore reverting your "correction." Nick Cooper 11:36, 17 April 2007 (UTC)
replies: text: The spigot mortar principle is quite simple. Imagine that you have a long metal rod the same diameter as the calibre of a particular gun. Insert the end of the rod into the gun barrel and push it all the way in as far as it will go. Insert a blank cartridge into the gun's breech. Tie a piece of string to the gun's trigger and cock the gun. Insert the metal rod into a suitably-sized and deep hole in the ground. Stand well back and pull the string. Instead of the 'bullet' flying out of the barrel, the 'barrel' (the gun) flies off instead. The metal rod is the spigot, the gun 'barrel' is the hollow tube inside the tail of the Petard's, Hedgehog's, or PIAT's bomb. The advantage of this principle is that the only high-grade steel used is for the spigot (the metal rod) which is much less than for an equivalent gun barrel, and the diameter of the projectile's warhead is not limited by the diameter of any barrel. Coincidently, that was why the PIAT was called a 'Projector' as it wasn't a gun in the strictest sense.  —Preceding unsigned comment added by 213.40.248.28 (talk) 16:43, 12 October 2009 (UTC)
thread_title:  Spigot petard mortar 

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