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Old Jun 21, 2013, 05:04 AM
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Portugal, Setubal District, Setubal
Joined Dec 2006
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Homemade Outboard 4s Class

Hi felows, i like to share with you my last creation, made with 1,6mm pcb dual copper face for F1 4S Brushless Race Class. Is compatible with K&B 3.5 flex shafts.

Detailed info and pics in www.multiracingfsr.com
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Old Jun 21, 2013, 08:12 AM
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Joined May 2012
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Best of luck with that! I've seen to many times what the force of a crash can do to an outboard in a crash, stripped metal servo gears, ripped out servos, broken an outboard right off the hull...
Don't think glued together PC board will cut it for too long at all. When it fails you stand a chance of losing some of your parts, depending on how it fails. If it's soldered it stands less of a chance, fairly easy to peel the copper off a board under the right circumstances.
Get a used K&B lower off one of the auction sites and do a proper conversion, Picked up my last lower for 25$ made my own electric motor mount for it.
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Old Jun 21, 2013, 09:46 AM
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Portugal, Setubal District, Setubal
Joined Dec 2006
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Hi Sibe, thks for your comments...I know what I do, I am specialize in fast speed boats in Portugal, am the first 100Kmh record owner in my country with just a litle balsa rigger... am the F1 4S winner in the first Championship started in 2010, and i have several complete and many parts of K&B 3.5cc motors , also run in F1 3.5cc nitro...
This is my actual running F1 4s boat with a K&B lower unit.

This copper pcb outboard unit is made just for fun and to be light, is for a very old abs Kyosho F1 Casablanca (end of 80īs)...
Take a look at my youtube channel , http://www.youtube.com/user/RogerPro1
Best regards fom Portugal
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Old Jun 21, 2013, 06:01 PM
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What make is the orange tunnel hull?
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Old Jun 22, 2013, 09:06 AM
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Portugal, Setubal District, Setubal
Joined Dec 2006
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Hi Doby, is a epoxy glass fiber made by Graupner, ref Formel 1 number 2151.
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Old Jun 22, 2013, 09:58 AM
Hoffy1980
United States, IL, Maroa
Joined Jan 2013
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It looks really nice. I'm not sure why that would break easy? It looks pretty solid.Copper bends before it breaks, doesnt it?
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Old Jun 22, 2013, 10:18 AM
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Portugal, Setubal District, Setubal
Joined Dec 2006
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Thks Hoffy, yes, i think is pretty solid, this pcb is made with epoxy and 6 layers of micro glass fiber, i have broke 4 dremmel disks till now, making final reinforcements, i post pics soon.
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Old Jul 05, 2014, 02:55 PM
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Portugal, Setubal District, Setubal
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Outboard ready and tested, have run 3 heats in our National Champ without any problem.

Video of first testīs.
F1 Kyosho Casablanca with homemade Outboard (3 min 38 sec)
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