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Technic Airplane . I built this using Technic gears so that when the plane is rolling on a flat surface, the propellers rotate at the same time. . I hadn't done anything using my limited collection of Technic pieces for a long time so I thought I'd build something using them. I wasn't sure what I was going to build at first but I knew that I wanted to use some of my gears (I have a lot of them, mostly because of my old Bionicle sets) so that the MOC would actually do something. I also wanted to do something simple because I don't have a lot of the specialty Technic parts since I only have one or two small Technic set (not including Bionicle). I finally got the idea to build a plane that when it is rolling, the propellers turn at the same time like on a real airplane with propellers when it is taking off. I thought this wouldn't take that long to build, but I was mistaken. This took me about 3-4 hours to build because I had trouble spacing the gears so that they touched each other and wouldn't grind. I ended up having to use plates and jumper plates to accomplish this. The propellers weren't a problem but making the gears connected to the back wheels work with the gear on the axle connected to the gears turning the propellers was the problem. Once I had a working gear system, building the plane itself didn't take that long at all since I already had a picture in my mind of what I wanted to it to look like. It has no interior because it was not built to minifigure scale. I'm very happy with how it turned out because it works very well. The only way that I would want to improve it would be by adding a Power Functions motor to power the mechanical system. Different views of the plane: The bottom of the plane. In this picture you can see the mechanical parts of the plane that took me so long to build so that they worked together. The gears connected to the back wheels and the gear that turns the axle which has two gears on either end that turn the gears connected to the propellers. One of the wheels I used a pin with friction to connect the back wheels to the axle so that when they spin, they turn the gear on their axle. The gears connected to the back wheel. There are three of them because I had to make sure the back wheels were taller than the propellers (I had problems with that before). The back wheels had to be connected to the main body of the plane with jumper plates so the gears wouldn't grind. The gears powering one of the propellers The gears powering one of the propellers One of the propellers The propellers were connected to their gears using a pin with friction so that the propellers can only turn if the gear turns. The front wheel which is not powered by any gears. The front of the plane The front of the plane One of the wingtips One of the wingtips The tail This will be one of the last things I build until at least Thanksgiving because I'm leaving for college on Saturday and I can't bring my LEGO with me since I'm living in the dorms and there's no room for LEGO. I do have LDD on my computer though so I will be building things on it. I just won't build anymore MOCs out of real bricks until I come home on breaks (although when I visited my college last summer I noticed there were basic LEGO pieces, Technic pieces, and Mindstorms parts in some of the engineering classrooms and I'm going to be taking an engineering class so maybe I will get to experiment with Mindstorms a little).

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