The Steamboating Forum

I bought the plans for my steamboat there-Wes Farmers Assassin

I did the calculations using the formula provided by Rolphill and the passages for the Hasbrouck #1 are ok, so modifying my engine is probably not worth it.

Thanks for the info. One of my winter projects will be to modify my engine to increase exhaust port size and steam passages .

Thanks for the reply. Can you think of why Ray Hasbrouck made the change in port size when everything else is the same except for the change from cylinder sleeve to cast iron block? He must have seen some advantage.

I have a Hasbrouck 1 engine. It is built around a cylinder sleeve. The Hasbrouck #10 engine is basically the same engine but uses a cast iron block instead of a cylinder sleeve. The thing that I notice is that on my engine the intake ports and exhaust port are all the same size. On the number #10 en...

Thank you for taking the time to answer my question. So, if I understand you, my wood consumption is not excessive. One thing about my boat is that I have never obtained 6mph. I believe my prop is not ideal (12x15) so I am thinking of making a prop this winter, maybe 12x20 with narrow blades. I beli...

Also has a feed water heater

Fire tube boiler, all copper, stainless superheater in the firebox, about 9 sq ft heating surface, condensing , engine is 2 1/4 bore by 3 inch stroke . Running about 300 -400 rpm and 3-4 mph

My boat is 16 ft and weighs about 900LBs loaded. I am using 4 1/2 lbs of dry maple per mile. My boiler is run with an electric blower in the firebox. Is that what you would expect for wood consumption?

My engine is 2 1/4 by 3 and runs at 100psi max. My pump is single acting and is 5/8 bore with a 1 1/4 stroke. The pump runs at 1/4 engine speed.