I have this posted in the paper models section but was informed I might want to put it in the railroads section also. This is a design I came up with of a container crane. It is close to 1/400 scale, not sure what that comes out to in gauge. It can be scaled down for HO or O scale. In the plans you have the option to have the main boom either lowered or raised. Sorry but I haven't designed a way yet to make it do both so it has to be built either one way or the other. The model will be ready for download once the mods approve it. If you have any questions feel free to PM me and I will be glad to help.