The stl is saved at the printed size and is designed to be printed at 1/285 scale with no supports required; trying to remove supports at this size would probably destroy the model.
It is best printed with the base flat on the build-plate and without supports.
Naturally, you can scale it to any size you like, as it is meant for 1/285th, it would look awful if upscaled. There are much better models for larger scales.
Because I use a Creality Ender-3 with a .4mm nozzle, models meant to be scaled at 1/285 can only have details that measure ~114mm full size. As a result, I model thin parts and wing trailing edges at 120mm full size. Small details just won’t show up at small sizes, yet the details I do include may look toyishly clunky if scaled up much.
I do not try to orient the model for direct printing as I think each person will have their own ideas and experience on how to print best with their own 3dprinter. I do not give advice on printer settings for the same reason except to say that with small models, temperatures must be kept as low as feasible to keep thin parts from re-melting ( such as thin nose cones and the like ).
I use the CC-BY-NC-SA 3.0 license.
Don’t sell the files and feel free to make any changes or mods you like, but if you release them, you must use the same license.
For attribution; Richard Honeycutt made the original file.