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#1
06-11-12, 10:15
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Quote:
__________________
Cheers Cliff Hutchings aka MrRoo S.I.R. "and on the 8th day he made trucks so that man, made on the 7th day, had shelter when woman threw him out for the night" MrRoo says "TRUCKS ROOLE"
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#2
07-11-12, 03:11
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derrick trucks
Hi Jared,
I think some of this might help you. The crane was designed to lift 3 tons originally, later increased to 5 tons by the addition of braces from the boom to the chassis rear and extra ground supports at the back as well. Cheers, Allan
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#3
07-11-12, 03:32
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derrick trucks
Here's some more to add. As you can see in the documentation, it is definitely called a derrick truck. Issued to engineers and the like, it would have been used, among other things, to load/unload the semi trailers that bridging platoons used to carry pontoons, bailey bridge sections, etc.
As for slewing control, there are 2 attachment points just behind the the tip of the boom. I think that simple ropes were tied here and used to pull the crane around. Cheers, Allan
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#4
12-01-14, 17:08
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Quote:
__________________
One of the original Australian CMP hunters. Last edited by Hanno Spoelstra; 12-01-14 at 19:51. Reason: formatting
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#5
12-01-14, 17:59
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Sorry, Tony, but to a Canadian, the truck in Pic 3 is officially defined as a 'Lorry, 3 ton, Derrick' or 'Lorry, 3 ton, 4x4-134"wb Derrick' and they were only built (in Canada) on Ford chassis.
There were various body configurations: 3A3 on Cab 12; 3A5, 4H2, 4H4, 4H6 on Cab 13. The Canadian DND vehicle model suffix was DRCK-1 through to 5, depending on fittings, winch type, etc, (where DRCK stands for 'Derrick'). The DND description of the vehicle and its use also uses the term 'derrick' several times. So I suppose we are seeing yet another difference of word definition and usage between English speaking nations. OK, OK .... so it seems the Canadians don't know the difference between a 'Lorry' and a 'Truck'.... Mike C
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#6
12-01-14, 18:23
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Quote:
The Lorry, Derrick configuration in Pic 3 that you relate to was also built in Canada on the Chev chassis. Steve Stone had one, but I thought it was on a C30S chassis, same wheelbase as a '60S, but his was a Cab 12. Looks much the same as a 3 tonner. You can talk to him about it in July ! regards, Richard
__________________
Richard 1943 Bedford QLD lorry - 1941 BSA WM20 m/cycle - 1943 Daimler Scout Car Mk2 Member of MVT, IMPS, MVG of NSW, KVE and AMVCS KVE President & KVE News Editor
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#7
12-01-14, 18:42
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Hi Richard,
My comment on the Ford build was based on the DND 'body data book', the updated version issued in 1945, so given the cessation of CMP production soon after, I assumed it was correct (see... the dangers of assuming anything!!!) I'll look forward to chatting with him about it, in person, in July. All the best from a mild winter in WA state.... Mike C
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#8
14-01-14, 11:38
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Quote:
__________________
One of the original Australian CMP hunters. Last edited by Tony Wheeler; 14-01-14 at 19:16.
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#9
16-01-14, 17:12
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Hey, Jared ..... and all you wanted to know about was Derrick trucks.... see how ... 'educational' MLU can be?
Wow! I should visit here more often..... Mike C
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#10
12-01-14, 20:05
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But: one manual lists a "3-Ton 4x4 Engineers' Lorry with Body Type Winch". In the listed thread no definite conclusion was drawn whether the Derrick and Engineers Lorry were the same type of truck or not. H. 
__________________
Regards, Hanno --------------------------
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#11
12-01-14, 20:24
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Interesting......
The '3 ton Engineers Lorry' is actually defined as the 'Lorry 3 ton 4x4-134"wb Winch' in the DND body book, body type codes 3A2, 3A4, 4H1, 4H3 and 4H5. These are an 'all steel 10 foot special engineers body having full length wheelwell seats along each side...' Comparing the descriptions of the body types eg 3A4 (winch) and 3A5 (derrick), it appears the same base body is used for both the Winch and Derrick trucks, with the difference being the fittings etc required for mounting and stowing the derrick poles. I notice that the Gregg Vehicle Data book (a repro of the March 1944 DND list) lists only the Derrick, noting that it has the capacity to be used as a recovery winch (without the derrick legs in place). Maybe by then the 'Lorry, Winch' was dropped in favour of producing one truck, ie the Derrick, which could do winching AND lifting, ie a more versatile truck? In any event, the body data book lists two sets of body identification numbers, so the Winch and Derrick trucks were clearly differentiated at some time. Mike C
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#12
14-01-14, 19:24
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Yes I realize that's the official designation Mike, I was merely pointing out that it's a misnomer. My purpose in doing so was to identify the TRUE source of confusion which invariably sees the Australian nomenclature called into question, as seen again throughout this thread. However my use of upper/lower case was perhaps too subtle, so I shall restate more clearly: The vehicle in pic 3 is definitely a Derrick, but is definitely not a derrick! On the question of national word usage - in this case we're dealing with a word chosen solely by a WO committee, and thus enforced in relation to this particular vehicle. Therefore we can't assume common usage, as we might if we encountered the word in general literature. I'd be interested to hear from Canadians on this question, but I'd be surprised if they use the word "derrick" interchangeably with "crane", any more than we do in Australia. Certainly the word itself is clearly defined in English dictionaries, and in no way does it apply to the simple crane found on the Lorry, 3 ton, Derrick: "a kind of crane with a movable pivoted arm for moving heavy weights, especially on a ship." "a boom for lifting cargo, pivoted at its inner end to a ship's mast or kingpost, and raised and supported at its outer end by topping lifts." "A machine for hoisting and moving heavy objects, consisting of a movable boom equipped with cables and pulleys and connected to the base of an upright stationary beam." "lifts and moves heavy objects; lifting tackle is suspended from a pivoted boom that rotates around a vertical axis." "a jib crane having a boom hinged near the base of the mast so as to rotate about the mast, for moving a load toward or away from the mast by raising or lowering the boom." Thus we find that a derrick is defined by a boom which both elevates AND rotates - neither of which the Lorry, 3 ton, Derrick can do! However I'm led to revise my earlier assertion that the Trucks, Derrick (AUST) was the only CMP derrick produced - there was in fact one other variant fitting this definition, in a much more famous configuration featuring not one but TWO derricks! Something else I learned about the derrick: "The device was named for its resemblance to a type of gallows from which a hangman's noose hangs. The derrick type of gallows in turn got its name from Thomas Derrick, an English executioner from the Elizabethan era." Fascinating!
__________________
One of the original Australian CMP hunters.
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#13
14-01-14, 19:43
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Yep, missed the subtlety of the first post ..... but not this time round!
Mike C
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#14
27-06-13, 12:39
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All the best and here are some old and some newer photos, I will take more as I go along for your interest if you like. Cheers Malcolm.. Geelong Vic Australia
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Hybrid Mode
