I suppose a had better come clean - I am building one but hopefully true scale and largely in 3 mm Depron! For another project (now on hold!) I bought a 10x8.2 four blade prop and a suitable low kV motor to drive it on a 3s. Just about perfect for an AN2. The cowling on the AN2 is circular so ideal to 3D print and plenty big enough to really 'see' the ASh -62 inside it so it seemed logical to print a complete near scale 'engine' as well. Not really a time effective exercise but I find solving the printing issues absorbing. Although the engine looks fairly solid it is surprisingly light being entirely hollow (even the push rods!) with a print thickness of only 0.3 mm. The cowling itself is fairly straight forward. A rear part that also acts as the motor mount and a simple circular front section that covers the 3D printed 'engine'. Needless to say the Ash-62 is much more complex comprising of 74 individual components that have to be glued together like a plastic kit! This leads to the rather bizarre situation of creating and printing the cowling and than scaling the air frame to match it! It looks like the AN 2 will have a span of 44" (1120 mm). The intention is its 'stocky' fuselage will be a 3 mm Depron monocoque skin over printed formers with no other reinforcing. The wings will be de-mountable. A although its wing span is not that large a 'one piece' biplane takes up quite a bit of space! We shall see.