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Author Topic: 1/2a apc props  (Read 798 times)

Offline Chris Keller

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1/2a apc props
« on: October 21, 2008, 08:29:00 PM »
Maybe I'm missing something, but all the APC props that are for 1/2a have too big of a hole in them to run on any of the engines that I have. how do you mount a prop with too big a hole?
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Offline minnesotamodeler

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Re: 1/2a apc props
« Reply #1 on: October 22, 2008, 04:18:11 AM »
Bothersome for sure, otherwise the APCs are good props for 1/2A.  I use a short length of fuel line over the mounting bolt to fill in the oversize hole.  Don't know what engine they designed those things for, I never saw a 1/2A requiring that large a hole.
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Offline ray copeland

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Re: 1/2a apc props
« Reply #2 on: October 22, 2008, 08:01:48 AM »
I use the Oregon brand yellow fuel line for inside chainsaw tanks, 3/32 x 3/16 size available at Ace Hardware for around 50 cents a foot, fits norvel and ap prop screws well. A little more rigid than silicone hose. Also works well on a syringe for fueling.
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Offline Larry Renger

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Re: 1/2a apc props
« Reply #3 on: October 22, 2008, 02:23:32 PM »
I think the big hole has something to do with avoiding shrinkage of the hub in the molding process.  Some APC props come with an adapter.  I use several pieces of Aluminum tube inside each other to get the prop centered.
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Offline Ralph Wenzel (d)

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Re: 1/2a apc props
« Reply #4 on: October 22, 2008, 03:07:13 PM »
Every bag (that I've seen) of APC ½A props has a string of 4 adapters. Talk your friendly LHS out of one. I suppose it's possible that APC would sell a set at a reasonable price just to be sure you use their props . . .


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Offline john e. holliday

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Re: 1/2a apc props
« Reply #5 on: October 23, 2008, 08:24:06 AM »
Get ahold of Melvin at "MBS Model Supply" about the adapters for the APC props.  I think his son was making metal ones at one time.  Just google "MBS Model Supply".  DOC Holliday
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Offline Chris Keller

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Re: 1/2a apc props
« Reply #6 on: October 23, 2008, 08:35:14 PM »
I got a few 5.7 x 3 apc props and some fuel line to use as a bushing today. time to test them #^
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