steel for cylinders?

[Jens Eirik Skogstad 1Participant @jenseirikskogstad1]

Posted by Jack Rogerson 1 on 23/11/2010 20:42:44:

Somewhere in the late ’70s or early ’80s an Austrian company brought out a limited range of model aircraft engines which were designated AAC,

This was an Alumium liner, Chrome plated and Aluminium piston.

I actually still have one, but can;t remeber the name. It was 0.45 cu. in. volume, and flew my flying boat for many years.

If anyone really wants to know the name, I’ll dig it out.

Jack

 

 Enya and Saito engines has AAC sleeve/piston.

 

Peter Ravenscroft and other folk in the forum..

 

In case you do not has acess to cast iron for cylinder, can use bronze for cylinder and  brass for piston and piston ring of viton O-ring..

 

See this link:

http://www.saunalahti.fi/~animato/3003/3003x.html

http://www.saunalahti.fi/~animato/3003/060n.html

in the main site http://www.saunalahti.fi/~animato/steam/

 

 

Edited By Jens Eirik Skogstad on 23/11/2010 21:15:30

[Ramon WilsonParticipant @ramonwilson3]

Hi Jens,

 

I have just found another article by George Aldrich where he says he was involved with the first Super Tigre ABC engine in 1966. It states it was sent to a Harry Roe by Mr Garafoli of Super Tigre in the winter of 66. He doesn’t state which engine or capacity though. I can’t find an earlier reference than this. The article is mainly about tapered bores and how to achieve them.

 

Jack, Would your engine be an HP 45? A while back I renovated one – an HP61 marine – the first I have had dealings with. The fits on this engine were absolutely superb and I was told that that was probably down to the fact that the manufacturers ‘Hirtenberger’ were also gun manufacturers.

 

HP engines are now made in the USA by Mecoa see here

 

Regards – Ramon

[John OlsenParticipant @johnolsen79199]

Tapered bores? No problem. It is gettting the so and so’s reasonably parallel that gives me trouble!

 

I have an HP45, but that is a calculator.

 

regards

John

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