Making it Spin

So I finally put together the engine booms that also serve as the rear landing gear housing. I noticed that this model WAS NOT designed to be built “gear-up.” IE it was difficult to reshape the landing gear doors and glue them in the right position. I also added some filler putty to the inside to make it stable.

Problem 4: The propellers do not spin.

This really irks me. It’s not that hard to cast a plane with spinning props, not to mention that it’s almost commonplace in all prop planes. No matter; I’ll fix it. So first, I took 2mm brass wire (looks like coat hanger wire) and cut off two 2″ lengths. Then I took 3mm styrene tubing and cut off two .5cm lengths after drilling out the inside of the tube a bit more. I attached the tubes to the ends of the wire. These are the new spinners for the propellers. Because they must attach to the propeller cones, I cut off the circle attachments on the engine booms and glued them inside the prop cones. I then drilled all the necessary holes. Now, they are ready for assembly.

The idea with the circle hinges in the propeller cones is to isolate where the glue will be. I don’t want glue getting on the engine booms because then the props won’t spin. If I give a small area enclosed by the circle hinges (minus a hole for the rod spinners), then I can ensure a good connection without glue leaking everywhere.

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These are the engine booms with filler inside.

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This is the way the booms look unaltered. Notice the circle hinges that glue the props down.

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Everything is cut and ready to be glued.
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You can see the spinners I built compared to a penny.

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These are the cones that attach to the propellers. I glued the circle hinges in them, and I later drilled a hole to allow the spinner to glue onto them.

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~ by unreality86 on 1 October 2007.

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