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Old Aug 08, 2012, 03:04 PM
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Joined Aug 2012
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Wot-4 - Major problems with Scratch built wot-4 engine mounting

Wot-4 - Major problems with Scratch built wot-4 engine mounting

Any ideas what to use. This is the first plane i have ever built. The engine keeps falling out of the polystyrene mount that i have made any ideas.

I glue it in first time and then more glue the second and still the slightest touch and it comes loose what do you guys use?
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Old Aug 08, 2012, 09:26 PM
Altitude is my friend...
Depronicus's Avatar
Southern California
Joined May 2009
1,446 Posts
We really need to see a closeup photo or two before we can help you. Just saying that your motor comes loose gives us nothing to work with.
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Old Aug 09, 2012, 02:37 AM
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Staffs, UK
Joined Nov 2003
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If it's scratchbuilt from foam then it ain't really a Wot 4 so what does it look like, size, weight etc ? Motors are usually mounted onto a ply firewall but what motor are you trying to mount ?

BTW if it's really an "engine" i.e. fuel not electric, then foam isn't really going to work.

Steve
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Old Aug 09, 2012, 02:58 AM
PowerTower
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United Kingdom, England, Bristol
Joined Aug 2009
1,020 Posts
Pictures essential really. It sounds like if you mount onto just foam that will be the problem. You need a light-ply bulkhead/firewall, which in turn will be stuck into the foam fuse with light ply bracing so you spread the load. Then screw the motor with mount onto the firewall.
A lot depends on what you have to start with, get the pictures posted and I'm sure we can come up with the ideal solution
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