[Leif Ohlsson]

I made a real quickie of enlarging Roman's Stinson Sentinel to 1:48 scale, parts only sheet. (The instructions, etc., is already there in the original kit.)

The it struck me that Roman hasn't offered this as a completely free model, no strings attached, so I had better not publish it here without permission (which I did first without thinking).

Awaiting Roman's permission I have removed the download. Sorry for acting prematurely.

However, let's discuss the process as such, now that I've done it. When enlarging a kit like this, open the original pdf-file in a vector program. Select all, and enlarge to 150 percent (to go from 1:72 to 1:48). DO NOT enlarge lines. This way you get a version which is actually better than the original, since the lines are proportionally thinner.

Choose a drawing area of 279 x 210 mm, which is universal A4/Letter. You may need to rearrange parts ever so slightly to fit this paper size with some room to spare.

No guarantees, of course, that the fit of formers etc. remains the same. Slightly thicker paper might be in order.

I notice that the model is wide open to include an interior and transparent windows. It would be a kind of suitable challenge to try for the transparent windows.

I am thinking about layers of clear tape, one rather broad on the inside, and then another layer on the outside, cut very neatly clean along the borders to adhere only to the inside layer, and just the rims. I have made some trial attempts along those lines and it does seem to work.

But you should probably print several window frames to allow for trial and error. Also, cut out the window panels only (and leave extra paper on the outside of the frames). Tape twice, clean up, and only then cut the outside rim.