The National Air Force Museum of Canada at Canadian Forces Base
Trenton is restoring Handley Page Halifax A. VII NA337 which was recovered from
Lake Mjosa in Norway in September 1995. It had ditched in the lake on the night
of April 13, 1945. The engines are Bristol Hercules XVIs. The Hercules has
sleeve valves instead of the traditional poppet valves.
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Two Cylinders Removed
A piston and sleeve are visible |
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| Cylinders |
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Junk Heads
The junk head seals the top end of the cylinder, houses the sparking plugs, and provide a space to "hide" the sleeve ports when the piston is on the compression and power strokes. |
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| Sleeve |
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| Sleeve Drive Gear Train |
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| Sleeve Drive Gear Train |
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Bristol Centaurus C18
Data Plate |
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Bristol Centaurus C18
Exhaust Detail |
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Bristol Centaurus C18
Rear View |
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Bristol Centaurus C18
Junk Head Detail |
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