Carefully scaled down using official ZIS blueprints.
Took about two weeks to design it on computer, and two months to build.
-Ackerman steering geometry with working steering wheel in the cabin and HOG
-Realistic working leaf spring suspension
-Working ultra detailed and realistic engine-connects to the gearbox and drivetrain, and soft hose to the chromed exhaust!
-Working 4 speed gearbox, with gearstick in the cabin
-Working crane- lifting, luffing and slew
-Openable doors on truck and crane
-Openable hood and side panels to reveal engine
Transparent clear pieces on all doors to simulate glass
Take a look at the video: http://youtu.be/rW-p4CQp78Q
Great build! It is definitely not a very common subject for a LEGO model, but you have done a spectacular job with the details. I really like how the crane boom was put together, and the details of the engine are excellent as well. Plus, you've included loads of nice Technic functionality. A top-notch effort in every respect.