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Snowcat History, Articles, Manuals, Brochures & Recollections Forum Publications, specifications, production information for snow cats

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  #81  
Old 10-28-2014, 03:27 PM
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Default Re: early tucker photos

Another link to tie into the second page:

http://www.telegraph.co.uk/travel/ac...?frame=3030804

"We'd scarcely set off before we ran into trouble. This was the first deep crevasse, just 25 miles from Shackleton. Leading from the front Bunny's Sno-Cat Rock 'n' Roll became jammed nose first in the far wall. In such cases recovery was a long and skilled manoeuvre and often seemed impossible, but our engineers always managed to figure a way to haul our vehicles to safety."
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  #82  
Old 11-04-2014, 12:50 PM
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Default Re: early tucker photos

Referencing post #13
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  #83  
Old 11-04-2014, 02:44 PM
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Default Re: early tucker photos

To add to Boggie's patent post, what we've come to know & love:

http://www.google.com.ar/patents/US2341000
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  #84  
Old 11-04-2014, 03:27 PM
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Default Re: early tucker photos

And one for you users of the 'fiber tons' for decreased weight:



"Heretofore, the pontoons, and the endless track engaging elements thereof, have always been made of steel or like heavy metal, and their total weight has been considerable and such as to cause the vehicle to sometimes bog down as, for example, when traversing light or powdery snow.
It is, therefore, the major object of the present invention to provide a pontoon unit, for the purpose described, wherein the body is made of a material such as rigid Fiberglas or similar plastic material which is relatively light compared to steel; there being, on such body, an endless track engaging structure of wear resistant material such as steel or the like."
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  #85  
Old 11-04-2014, 11:09 PM
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Default Re: early tucker photos

Quote:
Originally Posted by DAVENET View Post
And one for you users of the 'fiber tons' for decreased weight:



"Heretofore, the pontoons, and the endless track engaging elements thereof, have always been made of steel or like heavy metal, and their total weight has been considerable and such as to cause the vehicle to sometimes bog down as, for example, when traversing light or powdery snow.
It is, therefore, the major object of the present invention to provide a pontoon unit, for the purpose described, wherein the body is made of a material such as rigid Fiberglas or similar plastic material which is relatively light compared to steel; there being, on such body, an endless track engaging structure of wear resistant material such as steel or the like."
And heretofor where as I have worked on both the Fiberglas and steel pontoons find forthwith that the Fiberglass may just be containing more mass than the steel. Next time I have both apart I will weigh each, independent and heretofor separate.
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  #86  
Old 11-05-2014, 04:21 AM
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Default Re: early tucker photos

I did a double take when I saw the oil lamp heating device in the drawing, has anyone seen any photos of this early style pontoon with a access door?
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  #87  
Old 11-05-2014, 06:37 AM
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Default Re: early tucker photos

The first three posts. But I didn't know what they were for before either.
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Old 11-05-2014, 08:17 AM
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Default Re: early tucker photos

"In order to maintain the housings (l) are heated or warmed so as to prevent freezing of the various shaft bearings mounted in the housings, a heating device of suitable character, as indicated at (H), is disposed in each housing, being accessible from covered manholes (E8) in the outer side of the housings."
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  #89  
Old 11-05-2014, 09:50 AM
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Default Re: early tucker photos

Quote:
Originally Posted by jask View Post
I did a double take when I saw the oil lamp heating device in the drawing, has anyone seen any photos of this early style pontoon with a access door?
Here you go jask
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  #90  
Old 11-05-2014, 11:39 AM
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Default Re: early tucker photos

This history is amazing. Thank you for sharing with us! Hoping to bring lots of knowledge Back East In April!
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  #91  
Old 11-06-2014, 03:49 PM
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Default Re: early tucker photos

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Referencing post #13
The red machine on the trailer is one of Tucker's early snow machines that used a spiral drive tube. He sold these machines with the name The Tucker Snow Motor Sled. Tucker gave up this principle in 1938 when he came up with the idea and machine with the pontoons on it.

The track on the left belongs to the famous Rock N Roll freighter which was Sir Vivian Fuchs's personal Sno-Cat that he crossed Antarctica in 1957-1958.

The 424 is one of only four built. It has a steel body. The year of manufacture was 1946.
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  #92  
Old 11-07-2014, 09:58 AM
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Default Re: early tucker photos

Here is a question for the resident experts. And it's something that has been bouncing around in my skull for a little while and things like the 'fiber-toon' bring it back. But not sure it would even work or be worth the effort.

Obviously, Tuckers were built for one purpose- utility. Every part of the design was to make it as functional as possible with minimal attention to creature comforts (which has certainly changed with new models). So, when it came time to work, you made do with what you had. Now that a lot of us are chasing cats for recreation, building our own comforts into our units gets moved to the front so we can enjoy them more / longer without dreading having to climb into the thing for another shift of work. Which brings me back to the pontoons.

The question is this: would it be feasible to fill the steel pontoons with some sort of material to kill the giant reverberation chamber effect?

With all of the metal running around a big steel drum it seems that a LOT of noise could possibly be knocked out by coating or filling the interior with some sort of waterproof foam (since there will undoubtedly be water finding it's way in somehow). Or some other lightweight material.

Thoughts?
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  #93  
Old 11-07-2014, 10:04 AM
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Default Re: early tucker photos

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With all of the metal running around a big steel drum it seems that a LOT of noise could possibly be knocked out by coating or filling the interior with some sort of waterproof foam (since there will undoubtedly be water finding it's way in somehow). Or some other lightweight material. Thoughts?
What about "rhino" lining, such as in a truck bed? It claims to reduce noise from vibrations and impacts. Plus corrosion resistance.

http://www.rhinolinings-inlandemp.co...Your_Rhino.php
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  #94  
Old 11-07-2014, 10:11 AM
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Default Re: early tucker photos

I suppose that could work as well since the weight would probably be pretty close.
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Old 11-07-2014, 11:57 AM
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Default Re: early tucker photos

From my experience with the fiberglass they end up packed with snow around the drum and tops under the track. Unless it is real cold powder which should dampen the sound anyway. Biggest issue would probably be frozen snow ice ground without soft dampening snow.

The tracks are loud running don't know if it would help much?.
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  #96  
Old 11-07-2014, 11:58 AM
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Default Re: early tucker photos

I would think lizard skin would be the coating you want as its purpose is to control sound. there are several different formulas made depending on if you want underbody protection interior or heat control.
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  #97  
Old 11-07-2014, 02:55 PM
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Default Re: early tucker photos

Quote:
Originally Posted by jask View Post
I did a double take when I saw the oil lamp heating device in the drawing, has anyone seen any photos of this early style pontoon with a access door?
Here is a photo of an "early" pontoon. Note the track adjusters on both ends. This is before the development of the flanged roller. The smudge pot pontoon heaters are on back order.

The only time I notice the pontoon noise is when the sprocket cavity is not filled up with snow. In this area, that lasts for about 20 feet of travel.
For you who run on boiler plate all the time, I guess that would be a different problem. When we get a very deep snow, the pontoons are submerged and I doubt that they are making much noise. I don't notice the difference, but then I got my ear drums shot off in the war. I suggest working on interior cab acoustics before worrying about the pontoons.
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  #98  
Old 11-07-2014, 07:16 PM
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Default Re: early tucker photos

another tucker pontoon with inspection covers for smudge pots
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  #99  
Old 11-08-2014, 02:14 AM
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Default Re: early tucker photos

I would guess the smudge pots would not see much use in these pontoons.... too many bolts.... both of the pics above look much more accessible and more importantly the first image shows some consideration for air supply.
I would think that a good closed cell spray foam might dampen the noise without leaving the foam susceptible to water absorption. There are DIY spray foam insulation kits available through home improvement stores for 2-3 hundred dollars.
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Old 11-09-2014, 01:02 PM
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Default Re: early tucker photos

Wow - Thanks for sharing more of these great photos and diagrams guys!!!

Can't wait for winter to get here in central Colorado - been an extended "indian summer" - dry and warm.
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