Triple Expansion Engine (Bolton design)

Triple Expansion Engine (Bolton design)

This topic has 1 reply, 1 voice, and was last updated 11 January 2012 at 14:33 by Tony Martyr.

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11 January 2012 at 14:33 #81774
Tony Martyr
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@tonymartyr14488
The drawing of the HP cylinder block contains an error.

The through drillings of the exhaust ducts are plugged – the drawing note to that effect calls for 7/16×40 tpi plugs.

It should read ‘7/32x40tpi plugs.

I think the plugging is better done by taking the holes through to the HP valve face where there is more metal than the sides of the casting as shown in the design.
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11 January 2012 at 14:33 #38750
Tony Martyr
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