This model was built for a contest. Features pneumatically operated arm, rear blade, HOG steering, pendular suspension on front axle, working fake R4 engine and winch. The trailer features adjustable landing gear and pendular suspension on both axles. Instructions are available for free here. Check parts list at Rebrickable.
Completion date: 28/12/2014
Dimensions: length 108 studs / width 18studs / height 29 studs
Weight: under 1kg
Propulsion: hand 🙂
Dimensions: length 47 studs / width 19studs / height 29 studs