The Mt. Washington Cog Railway steam locomotives, do thay have a special tooth in the rail? How does the locomotive get traction? Are they going to scrap the locomotives since the hydralic pusher's have come on line?
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The Mt. Washington Cog Railway has ONE (1) diesel-hydraulic locomotive - and needs a minimum of four locomotives to protect it's schedule. Even after they are withdrawn from service, some time in the indefinite future, the cog steam locos are unlikely to go to scrap. Every railroad museum in the country will probably want one - and there aren't that many of them.
The Marsh-system rack is like a ladder - 'rungs' bolted between two angle irons. Each of the 0-2-2-0 locos has a cog wheel at each end which engages the rack. I'm not sure that the wheels riding the ordinary rails are powered - they wouldn't deliver much traction on the line's maximum 37% grade.
Chuck
tomikawaTTm not sure that the wheels riding the ordinary rails are powered - they wouldn't deliver much traction on the line's maximum 37% grade.
AFAIK, the ordinary wheels are not powered. Of course, the railroad needs a pusher on the flat-rails in the engine-house, or a rack there, too.
tomikawaTT The Mt. Washington Cog Railway has ONE (1) diesel-hydraulic locomotive - and needs a minimum of four locomotives to protect it's schedule. Even after they are withdrawn from service, some time in the indefinite future, the cog steam locos are unlikely to go to scrap. Every railroad museum in the country will probably want one - and there aren't that many of them. Chuck
Hopefully when the the steam locos wear out they'll have new ones made. After all the Swiss firm Sulzer Bros still build similar locos for cog railways in Switzerland. Whilst in Wales, the Ffestiniog Railway (www.festrail.co.uk) has built several new steam locos since the 1970s to replace worn out locos.
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