German Screw Drive tractor

[Snowy]

Very interesting indeed, but the Archimedean screw vehicle was not unknown to the Allies during the war. Post-war the most well-known ASV was the Chrysler Marsh Screw Amphibian which was prototyped in the mid-late 60's for potential use in Vietnam.

Here is a frame grab from the OSS film on the T-15 Weasel, from the fabulous RealMilitaryFlix website showing an ASV being trialled in the USA. It looks like a converted tractor. Given that this design was trialled and found wanting (as part of Operation Plough, which lead to the development of the Weasel itself) I would hazard a guess as to it being 1942 perhaps.



References:
http://www.realmilitaryflix.com/public/441.cfm?sd=61
http://en.wikipedia.org/wiki/Geoffre...eration_Plough

Steve.

[George McKenzie]

I will get a picture of my 1918 modle and try to post it . All so I was up in the Youkon and saw a machine that was made to go on the water to look for gold .That would have been made in 1898 The screw was made of wood .It was about 3 ft high and 10 ft long A great bit of engineering and craftsman ship It's in a museum in Atlan BC. George

[sapper740]

Originally Posted by George McKenzie

I will get a picture of my 1918 modle and try to post it . All so I was up in the Youkon and saw a machine that was made to go on the water to look for gold .That would have been made in 1898 The screw was made of wood .It was about 3 ft high and 10 ft long A great bit of engineering and craftsman ship It's in a museum in Atlan BC. George

Please do George, I'd love to see any pictures you have of your model. Your reply to this thread goes to show that there isn't much new in the world when you come to think about it.


CHIMO! Derek.

[George McKenzie]

This is the screw that is in ths town of Atlin .Made in 1898 george

[George McKenzie]

Tank 001.jpg

This is a picture of my model tank 1918 .More to come when we get this system figured out . George

[George McKenzie]

IMGP1042.jpg

This is the wood screw that was used in the Klondike gold rush about 1898

[George McKenzie]

IMGP1037.jpg
This is another picture of the model that was used to apply for a patent for an anphibious army tank .It is about 30 inches long. It had two screws and a chain in the center . The neibour kids took a screw off of it and cut out some of the windows .A fellow by the name of Sam Cody invented it .He was a Canadian working in a munition plant in Detroit in 1917 .The American army was not interested in it because they wouldn't use a foreign patent in their army . The guns were to be put on after they got it working . The model had a wind up motor to drive the screws . George

[sapper740]

Originally Posted by George McKenzie

Attachment 21534

This is a picture of my model tank 1918 .More to come when we get this system figured out . George

Looks like something from Jules Verne George.



CHIMO! Derek.

[Snowy]

G'day George,
That is a very interesting model. Are you saying that the other screw has been lost? It looks like it's made from galvanised tin with the blade soldered to it, so perhaps a replica could be made. But then again - there's so many other things (like vehicle restoration) that could be done instead, and not enough hours in the day

Steve.