My quick review of Kontax Ross-yoke model.

Discussion on Stirling or "hot air" engines (all types)
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rsilvers
Posts: 3
Joined: Mon Apr 20, 2015 7:46 pm

My quick review of Kontax Ross-yoke model.

Post by rsilvers » Mon Apr 27, 2015 4:16 pm

I wanted to get a Stirling demonstrator just because I like nice mechanical things. I ruled out the $35 cheap ones, as I wanted an art-object.

I ruled out solar models, as I wanted something that could run all the time, and I knew that the plastic panels would not transfer heat as well. I ruled out alcohol-fuled ones as they are noisy and only run for a few minutes - at least I feared them walking off a table and starting a fire. So LTD model it was, and I wanted whichever one was "nicest."

I narrowed it down to a Kontax Ross-Yoke model (which I thought would be the most visually-interesting), or a CarlAero from eBay. I have no way of knowing for sure which one was better, but decided on the Kontax as it cost less and I found very high res photos of both, and the arms for the flywheel looked to be machined more precisely.

It took seven days to arrive from England to the US. The quality/look of it has exceeded what I had hoped for. it will run off my hand (and my hands are not even warm as far as hands go) with the gentlest spin. I don't have a tach, but it spins rather fast on my Apple AirPort router. I still don't know for sure if this is better or worse than the CarlAero, but I really can't imagine that this could be better than it is. But I am interested in comments from people who own both.

Image

vamoose
Posts: 275
Joined: Tue Jul 03, 2012 12:16 am
Location: Australia

Re: My quick review of Kontax Ross-yoke model.

Post by vamoose » Tue Apr 28, 2015 2:30 am

Sad to say i don't own either engine..

But glad to say i don't own any kind of apple (except the one in my lunchbox)..

Nice engine purchase though, they are a very sweet ride!!

vamoose

rsilvers
Posts: 3
Joined: Mon Apr 20, 2015 7:46 pm

Re: My quick review of Kontax Ross-yoke model.

Post by rsilvers » Tue Apr 28, 2015 2:04 pm


rsilvers
Posts: 3
Joined: Mon Apr 20, 2015 7:46 pm

Re: My quick review of Kontax Ross-yoke model.

Post by rsilvers » Tue Apr 28, 2015 2:32 pm

It is running on only a 3.5ºC difference.


Hank
Posts: 1
Joined: Tue Feb 23, 2016 3:36 am

Re: My quick review of Kontax Ross-yoke model.

Post by Hank » Wed Feb 24, 2016 3:29 am

vameeoose wrote:Sad to say i don't own either engine..

But glad to say i don't own any kind of apple and here's the link for the Bathmate (except the one in my lunchbox)..

Nice engine purchase though, they are a very sweet ride!!

vamoose
Nice review rsilvers. I must say that this is the best looking one I've seen. As you point out it's almost a piece of art. I'm going to try and get this one myself. Thanks for posting.

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