Robert,
The Dragon Wagon looks superb, I was debating on building one of them or the Diamond T. The Dragon wagon appealed because I could get a 1/35th kit to scale the 1/16th from but then I found an old 1/76 matchbox kit of the Diamond T so I went for tha as the "T" is my favorite of all WWII heavy trucks. I nearly bought a 1:1 Diamond T breakdown truck but the boss had other ideas!!! The half track and other models make a great display.
Sean,
The "T" is stand off scale at best as the vehicle and drawings I had were not the best to work from, the trailer is scratch built and larger than scale to fit the Tamiya Sherman. The rear ramps are worked from a servo mounted under the trailer, see photo. Also there is now a second servo to lock the front bogie to reverse. I think that the full size trailer had a method of locking the front bogie to reverse also as its impossible with the model with out it locked. The tractor uses a Bandai gearbox and motor with both rear axles driving to get maximum traction
