If it is correctly scaled we are looking at something interesting.
Well. It is, as far as understand, a pitot tube. There are two aspects to it: One is that narrow things tend to "swell" in silhouetting a relatively low resolution picture (here am I, telling my father how to make children). But the other aspect is that the pitot may (just may, as a clue) look thick if the aircraft is small. All very Einsteinian. Relativity and all that stuff.
Edit to say that this challenge may turn frustrating, but there are 3D, pictures of the aircraft and a drawing of the cockpit in the web (at least).