Here are the dimensions of the full scale PC1800 that I will be using to help build this model.
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This info was found here
http://www.komatsu.com.au/AboutKomat...6/PC1800-6.pdf
Some specs for the full scale machine
Twin 454HP engines
Swing speed 4.5 RPM
Max speed 1.7 MPH 2.7KM/H
Number of track pads/shoes 49/side
Weight with 40" triple grouser 405,910 LBS (184,120kg)
(1/12 scale is about 235lbs....yikes)
Bucket breakout force 81 tons
Bucket size 14.4 yds , 127" wide (1/12 scale is 10.6" wide)
Hope this will be of interest....Thanks for looking
KP