Odd dozers?

[MVFD]

I found some pretty weird dozers.

heres the links...

http://community.webshots.com/photo/548675347/2467586050065476939nqTwXW

http://community.webshots.com/photo/548675347/2253004660065476939ExlDqK

http://community.webshots.com/photo/548675347/2763048810065476939vvJCYo

http://community.webshots.com/photo/548675347/2310590120065476939mUOXLF

http://community.webshots.com/photo/548675347/2437696370065476939jLGzNa

http://community.webshots.com/photo/548675347/2702485380065476939kXhLNv

Sorry the pictures were to big to attach. if you know how to post them by all means do so, Thanks

[MVFD]

http://community.webshots.com/photo/548675347/2388253460065476939tnucuu

http://community.webshots.com/photo/548675347/2272371950065476939OsktUm

[Dozerboy]

Cool, this reminds me of one of the old times I worked with that told me they used to run 2 D9s one behind another. Only the front one had a blade and the second was more or less just a push cat. The operator would operate from the front one and air lines would run to the second to synchronize the controls. Any seen or have pics of a setup like this.

[alan627b]

Dozerboy, that would be a DD9 G or H, designed soley for pushing big scrapers like the 650, 651,660 or 666. One operator ran both tractors, it was built to minimize the time it would have taken to synchronize 2 independently operated pushcats these big scrapers required. If needed they could be disconnected and run independently of each other, if job conditions required it.
Nowadays, a single D10 or D11 can be fitted with a cushion blade and accomplish the same thing.
DD9G=770HP DD9H=820HP
They were originally developed by Buster Peterson of Peterson tractor in California, and eventually the patents/rights were sold to Caterpillar. he also developed the SxS D9g, two tractors hooked together side by side to a common blade for reclamation at strip mine sites.
Although these are pics of models of the real thing, it shows what they looked like. One was built, by Balderson I think, that required a third tractor to pull the blade, 48 feet wide!
alan627b
SxS DD9G http://www.toyline.com/bri/pictures/EMDN098.JPG
Late 40's double D8's http://www.toyline.com/bri/pictures/EMDN065.JPG
DD9G's http://www.toyline.com/bri/pictures/EMDN065.JPG
Balderson Double Dude http://www.toyline.com/bri/pictures/EMDN113.JPG
3X D9, 48 foot blade http://www.toyline.com/bri/pictures/EMDN135.JPG
All models available from Buffalo Road Imports
http://www.toyline.com/bri
They Ain't cheap!