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Mar 06, 2013, 11:46 PM
Vi ne donu ĝin
coriolan's Avatar
Quote:
Originally Posted by 706jim
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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Mar 06, 2013, 11:56 PM
Registered User
Quote:
Originally Posted by coriolan
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?
Mar 07, 2013, 12:07 AM
Vi ne donu ĝin
coriolan's Avatar
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.
Mar 07, 2013, 10:39 AM
Registered User
Quote:
Originally Posted by coriolan
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.
Mar 07, 2013, 04:43 PM
as the name says!
AirplaneFreak100's Avatar
micro outboards
hard to believe
Mar 07, 2013, 05:40 PM
Vi ne donu ĝin
coriolan's Avatar
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
Mar 07, 2013, 06:34 PM
as the name says!
AirplaneFreak100's Avatar
how do they run i mean like get the prop to p
spin perpendicular to cylinder direction?
is there a tube on the inside?
Mar 07, 2013, 07:05 PM
Vi ne donu ĝin
coriolan's Avatar
Some uses bevel gear(Allyn,SuperTigre,Faden) other have a cable or just a spring like the WenMac!
Mar 08, 2013, 12:37 AM
the great Gassif´er
Quote:
Originally Posted by AirplaneFreak100
micro outboards
hard to believe
Believe it...

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


Brgds, Bert
Mar 08, 2013, 12:44 AM
Registered User
Reginald's Avatar
Fuji, Atwood...the twin was an in-outboard and yes, that Wen-Mac Mk-2 is an original factory drive unit
Mar 08, 2013, 12:51 AM
the great Gassif´er
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
Mar 08, 2013, 05:48 AM
Registered User
earlwb's Avatar
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.
Mar 08, 2013, 05:54 AM
Registered User
Reginald's Avatar
Quote:
Originally Posted by earlwb
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
Mar 08, 2013, 06:37 AM
the great Gassif´er
Quote:
Originally Posted by earlwb
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
Mar 08, 2013, 08:59 AM
Registered User
earlwb's Avatar
Quote:
Originally Posted by Brutus1967
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
Last edited by earlwb; Mar 08, 2013 at 08:59 AM. Reason: add more info


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