Trailer 1 (Refer) . Refer for US Truck 1 scale 1:17,5 with PF and lights. It features solid axle suspension, landing gear and parkingbrake. .
One time at night, I was playing LEGO with my stepson. I do this a lot, spending quality time with him. This night I was building him a LEGO City scale trailer. I started using those big 8 x 16 tiles as sidewalls instead of building it with bricks. I new he does not have enough bricks in one color to build it other wise and I preferred this approach because real life trailers are not build with bricks either.
This approach limits the color scheme drastically, but I loved the idea and I did continue this approach to build a refer for my own US Trucks. These tiles are available in red and I was lucky this matches the colors of the my US Truck 1, so I started designing a refer using MLCad.
At the beginning of designing this trailer I wanted it to have three axles. Mainly because of the weight of this trailer, approximately 2,7 kilogram. Most US refers do have two axles so this was running in my mind as well. Because of a third trailer I'm building, it will be a log trailer with quite a heavy load, I did eventually change this trailer back to two axles.
This trailer fits the first truck as well and this is one of the goals I set my self. I want all my trucks and trailer to be compatible with each other. This approach might lead to having others share these concepts too and maybe in the future some sort of standard could be set...who knows...
The drop deck flatbed trailer I designed for my other US Truck used a tandem bogie suspension, but I wanted this new trailer to have a more sophisticated system. I based this new system on the solid axle suspension I use on my trucks, but this time without a differential of course.
The king pin, parking brake and landing gear are also the same, I did copy this from my flatbed trailer I mentioned above. It's not an exact copy, because of the new axle setup I had to relocate the parking brake, the PF IR Receiver and the PF M motor I use to power all this.
I did use some SNOT techniques in both my truck models, but I am not very familiar with it. Deciding to build the walls with 8 x 16 tiles means I have to get in to this technique and I did. One big drawback of these tiles is that they are, although all of them are brand new, curved a little in both directions.
The first trailer I build, this drop deck flatbed, did have this drop deck with a reason. My first attempt was to build just a flatbed. Because of a lot of decisions I made building the trucks the fifth wheel ended up quite high. I wanted the suspension and the fifth wheel on the truck to be realistic and functional, by this I mean it should actually work. To give the flatbed good looks, it should not be to high on its wheels, I had to change it into this drop deck. These results I had to implement in this new trailer as well. In real life a refer like this does not have a deck with two levels, this model does because of what I wrote here. The great thing is that the walls cover this and on the outside it does not appear to have two levels.