davidcurtis021
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one boiler two enginesfollowing on from my trip to cardiff and discussions with odilon on the practicalities of propulsion plus power generation from the graham trv1a.
i have now aquired a stuart 10v what are the pro's and cons of two engines on one boiler given that the boiler seemed to have a good head of steam in reserve.
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rangerssteamtoys
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Ok, so you want to run the Graham engine for propulsion and the stuart for power generation. Why do you need power?  I can only see a few minor problems..
Shorter run time (feed pump would solve this)
Possible boiler priming (too much steam leaving the boiler causes water to get sucked up)
Less speed
If you have a big enough boiler then its All OK 
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davidcurtis021
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| rangerssteamtoys wrote: | Ok, so you want to run the Graham engine for propulsion and the stuart for power generation. Why do you need power? I can only see a few minor problems..
Shorter run time (feed pump would solve this)
Possible boiler priming (too much steam leaving the boiler causes water to get sucked up)
Less speed
If you have a big enough boiler then its All OK |
its for keeping the battery charged for running lights, sounds, servos ect i know it would be easy to just charge the battery but easy always takes the fun away
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rangerssteamtoys
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If you just want to keep things charged, put a small generator (no load) on the main engine. Leave the stuart out of the equation, less steam consumption this way
You say that the boiler has plenty of steam when running the 2 engines? I'm sure that extra steam would go away once you put the boat in the water and have a load on it.
I personally would just connect up the small generator to the Graham.
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