I just posted a "New Rules' about not enough build threads, you slipped this beauty in. I have this one and the fully enclosed one I plan to build. The fully enclosed model is extremely detailed. There could be movies made about how these things were used. Nice clean job, as one would expect from you.
These small ones were used for forward observation and boy were they fast. They could see a column of tanks of German Soldiers, and there was nothing that could catch up to them, if they even saw them. Too bad they weren't so detailed on the steering mechanism. The "Ackerman" was set up just like cars, from the center of thrust! Sitting low like they did, they handled well and the protruding bars helped save the prop in even of a tip over. They usually carried an extra prop, definitely on the bigger ones. The had baskets that attached to the sides to get wounded men back to the rear as fast as possible. You never hear of these incredible inventions, used and produced for well over 100 years in Russia, and in various private parties in the U.S.