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Old Mar 06, 2013, 11:46 PM
"Unnecessary Necessity"
coriolan's Avatar
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Quote:
Originally Posted by 706jim View Post
Cool. Almost sounds like a twin cylinder outboard motor.
Not quite like it
2 cylinder nitro rc outboard, vintage glow engine,toy motor (0 min 59 sec)
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Old Mar 06, 2013, 11:56 PM
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Quote:
Originally Posted by coriolan View Post
Not quite like it
http://youtu.be/-LinuIVQRXw
Believe it or not, I have the IDENTICAL engine to yours that I picked up over 40 years ago. I ran it once and knocked one of the propeller blades off when it touched the gunwale of the aluminum boat I was launching the model from.

Probably the MOST amazing thing about this is that I FOUND the broken blade (still have it!) and hope to JB weld it back onto the prop hub.

But what are the chances that we would own the same engine?
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Old Mar 07, 2013, 12:07 AM
"Unnecessary Necessity"
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This engine isn't mine I had an Allyn .049 as a kid and ran it in a 20" hull, not very fast but was impressive back then. Since then I have build build a few 1/2A boats but only inboard. I don't think JBWeld would hold for a broken prop, you could probably adapt a small Octura prop to the Allyn more easily.
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Old Mar 07, 2013, 10:39 AM
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Originally Posted by coriolan View Post
This engine isn't mine I had an Allyn .049 as a kid and ran it in a 20" hull, not very fast but was impressive back then. Since then I have build build a few 1/2A boats but only inboard. I don't think JBWeld would hold for a broken prop, you could probably adapt a small Octura prop to the Allyn more easily.
And I own THAT engine as well! It actually ran quite well but this was before the days of affordable R/C, so the boat it powered was sort of "free flight".

I'll post a photo of the two of them once I remember how to do it.
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Old Mar 07, 2013, 04:43 PM
as the name says!
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micro outboards
hard to believe
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Old Mar 07, 2013, 05:40 PM
"Unnecessary Necessity"
coriolan's Avatar
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There was quite a few small outboard in the 50's, Allyn "Sea Fury"/Fuji/WenMac/SuperTigre etc...
http://www.modelenginecollecting.com...-outboard.html
http://www.rojobcn.com/technic/barco/supertig29.htm
And #130 which is a home made build based on Cox TD .010:
http://www.craftsmanshipmuseum.com/KnappCol.htm
Most can still be found on the bay
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Old Mar 07, 2013, 06:34 PM
as the name says!
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how do they run i mean like get the prop to p
spin perpendicular to cylinder direction?
is there a tube on the inside?
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Old Mar 07, 2013, 07:05 PM
"Unnecessary Necessity"
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Some uses bevel gear(Allyn,SuperTigre,Faden) other have a cable or just a spring like the WenMac!
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Old Mar 08, 2013, 12:37 AM
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Quote:
Originally Posted by AirplaneFreak100 View Post
micro outboards
hard to believe
Believe it...

New fuel, original prop, lowered motor (0 min 0 sec)


Brgds, Bert
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Old Mar 08, 2013, 12:44 AM
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Fuji, Atwood...the twin was an in-outboard and yes, that Wen-Mac Mk-2 is an original factory drive unit
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Old Mar 08, 2013, 12:51 AM
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WOW... how was that Wen-Mac supposed to work?
I do not see a V-groove for starting, no idea how that shaft would go through a sealed stern tube without leaking.... and the prop seems to be a bit big for the engine?

Really curious, me....

Brgds, Bert
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Old Mar 08, 2013, 05:48 AM
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I think they used the same method they used to start tether cars. By flipping the flywheel like it was a tether car tire connected to the engine. Now one could probably use a old leather belt strap too.
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Old Mar 08, 2013, 05:54 AM
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Originally Posted by earlwb View Post
I think they used the same method they used to start tether cars. By flipping the flywheel like it was a tether car tire connected to the engine. Now one could probably use a old leather belt strap too.
That's right. This version is the Wen-Mac Aquamite model 4, see page 241 of the AM Encyclopedia
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Old Mar 08, 2013, 06:37 AM
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Originally Posted by earlwb View Post
I think they used the same method they used to start tether cars. By flipping the flywheel like it was a tether car tire connected to the engine. Now one could probably use a old leather belt strap too.
that would be very informative, if I had any Idea how tether-cars were started.

But unfortunately, I only know they exist(ed). Over here in Europe, I elieve they have never been really widespread, and I have not even seen one IRL even on shows, meetings or other displays.

Brgds, Bert
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Old Mar 08, 2013, 08:59 AM
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Originally Posted by Brutus1967 View Post
that would be very informative, if I had any Idea how tether-cars were started.

But unfortunately, I only know they exist(ed). Over here in Europe, I elieve they have never been really widespread, and I have not even seen one IRL even on shows, meetings or other displays.

Brgds, Bert
You can see them spinning/flipping the rear driving wheel on some of the cars in these videos. Another method was a old gas engine with a rubber wheel/tire bolted onto it and they use it as a bump starter. The cord method was using a cord or leather strap and using both hands with it wraped around the flywheel to pull on it to start the engine. Also for cars they would use a broomstick handle and push the car to start it. The cars were direct drive, no clutch.

Old Rail car racing from the 1940's.
http://www.youtube.com/watch?feature...v=cEocgbNdMNM#

http://www.youtube.com/watch?NR=1&fe...&v=_JJi2tm2u9A
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Last edited by earlwb; Mar 08, 2013 at 08:59 AM. Reason: add more info
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