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aluminum spinner for 2 stroke

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aluminum spinner for 2 stroke

Old 03-31-2007, 08:55 PM
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Default aluminum spinner for 2 stroke

Can an OS .46 MAX handle a 2 ½ “ aluminum spinner? I have a 12x4 prop on the engine right now, will I have to get a smaller prop to allow the engine to torque the extra waight? Thanks

Old 03-31-2007, 09:23 PM
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Default RE: aluminum spinner for 2 stroke

A 2 1/2" one will be fine. I don't know of any 2 1/2" spinner on the market that would not work on an OS .46.

The size won't make any difference and an aluminum one will be better than a plastic one that may come apart at high rpm. The only plastic spinners I like are the Great Planes ones with an aluminum backplate. The plastic backplates tend to distort and are, in my opinion, dangerous on a 4-stroke.
Old 03-31-2007, 10:06 PM
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Default RE: aluminum spinner for 2 stroke

I can verify that plastic spinners can be dangerous on a 4 stroke.

I was breaking in an 80 size 4 stroke on the bench. The engine started, ran about 10 seconds, backfired and I was "shot" in the stomach with a 2 1/2" plastic spinner. I have a "very nice" bruise that now a yellow/purple in color. The spinner was brand new, but when the engine backfired, it sheared the pins with the attaching screws in it. The prop did not change position on the backplate.

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