I got the Heinkel Lerche (Lark) kit from the Hobby Factory. It's a 1:48 scale kit designed by Roman Vasyliev for Kampfflieger. The kit comes in 4 pages: Page 1 : Title page and aircraft description Pages 2-3 : Parts Page 4 : Assembly diagram From the looks of the parts and the assembly diagram, there aren't any parts nor instructions for making moving propellers. I hate models with fixed propellers! It just doesn't feel right. Fortunately, the model seems to have provisions for making the propellers rotate. For one thing, each propeller has its own separate section in the fuselage. Plus, the formers in the propeller segments have but a small hole in the center -- hints on where to put the spinner shaft. Hence, I decided to make some additional mods to have spinning propellers. I start by pre-assembling the fuselage segments that are connected to the propellers to help me figure out my game plan. After some dry-fittings, I noticed that the edges of the propeller fuselage segments are too rough and won't spin freely. So, I decided to glue a sheet of wax paper to the spinner segments. Here's a picture of the front part of the fuselage with the propeller shaft already affixed. With all the parts assembled, all that needs to be done is to plug the spinner shaft so that it stays put. This will ensure that only the propeller sections will rotate while the front and rear section of the fuselage stays fixed and aligned to each other. After the glue set, the modification seems to work. Both propeller segments of the fuselage rotate with very little resistance. But when I put the model in front of a wind source (hair dryer ) only the front propeller spins.... the rear one, which should counter-rotate, stays put. I guess that's about it for now... so sleepy.