I ventured into the design of this particular model of World War I, a German kite balloon the First World War, the Drachen.
I thought it was possible to realize it in 1/48 scale, but, in 1/72 scale turns out to be long cm.39 also using a paper size DIN A3.
In 1/72 scale, the model is 39 cm. long.
Not impossible, but complex to use the scale of 1/48
are a total of 21 sheets of A4, here are other details of instructions:
soon, matt77