[modeleng] Re: My latest model .... and the Triple
- From: "Tony Wells" <oaksfield@xxxxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Wed, 15 Dec 2004 16:35:09 -0000
I once saw a film of G.E.C. turning centre shafts for power station
turbines - they were BIG too! The turning rate looked to be a couple of
inches of circumference per minute, rather than whole rpm's.
Tony.
----- Original Message -----
From: "Harry Wade" <hww@xxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Wednesday, December 15, 2004 4:06 PM
Subject: [modeleng] Re: My latest model .... and the Triple
> At 09:02 AM 12/15/04 -0600, you wrote:
>>>A scale model of it would be fascinating.
>
> The thing that strikes me immediately about that engine is the
> machining diffculties, not in modeling it but in full size, and the
> crankshaft in particular. How was the crank made? Forged? Cast? Is it
> made in one piece or in interlocking sections? How was it turned? Or was
> it turned? If it was turned, at what rpm would a 300ton multiple-centered
> crankshaft be turned and who would be bold enough to stand nearby with
> that
> much weight rotating eccentrically. Inquiring minds, etc, etc.
> SNIP
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