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Keith Black

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Posts posted by Keith Black

  1. Craig, without doubt the prop is driven off the crankshaft. If the engine was thermosiphon cooled the need for a water pump is eliminated and the two pumps at the rear can be oil and fuel.

     

     When I was restoring cars I restored a 1919 Model T (a for real fairground racer out of Wisconsin)  and the engine was thermosiphon cooled. I rebuilt a couple of Chevrolet 216 engines and they didn't even have oil pumps! I think every early designed engine was unique and far far different than today's engines to say the least.   

  2.  

     Below is from Google AI...

     

    In a 16-cylinder, two-stroke engine, the crankshaft gear will turn four times for every one rotation of the camshaft gear. This is because a two-stroke engine completes its cycle in a single crankshaft rotation, while a four-stroke engine requires two crankshaft rotations. Therefore, the camshaft, which is typically geared to the crankshaft, would rotate at the same speed as the crankshaft in a two-stroke engine, meaning it would turn four times for every four crankshaft rotations, as opposed to the normal 1:2 ratio in a four-stroke engine. 

     

    image.png.f84d6ee94301a91915a6beefc9e304a8.png

     

     Gear size relationship for 2:1 ratio. 

    image.png.e1d0f3a95a1cbd39991068926fc3a35e.png

  3. 30 minutes ago, Cathead said:

    Ferrus, see what happens when you let steamboat nerds into your build?

     Eric, I thought the same thing. :)  Ferrus started his build log fire not realizing how many ole moths would be drawn to the flame which is a testament to those in the modeling community who's interest run deep in sternwheelers and working boats.  

  4. \

    3 hours ago, Ferrus Manus said:

    This begs the question: if the coal box and chimney are both at the front of the boiler, how would the water be evenly heated? 

     

     Ferrus, the flue gasses travel in a u-shape going from front to back and back to the fore to exit. Theory of design being the longer the flue gasses remained in the boiler the greater the heating capacity.

     

     IMHO the Southern Belle kit is a rudimentary example of a 19th century sternwheeler begging no forgiveness for details not accurately betrayed. It is what it is, made for the enjoyment of building the kit. 

  5. 1 hour ago, Glen McGuire said:

    After seeing the amazing work that @Keith Black has done on his tiny Lula furniture, I thought about asking him to make these for me!

     Thank you, Glen. If you lived here in Michigan I'd love to help but.... You've just started and one can already see the Kentoshi lines taking shape. Will you still need to split the hull?

  6. 1 hour ago, Ferrus Manus said:

    Kieth, I greatly appreciate being taught the terminology for a type of ship I know very little about.

     When I started Lula I couldn't even spell sternwheeler. :)  I've had to do a ton of research including going through the excellent build logs of many sternwheelers/riverboats. Thank God for the resources here on MSW and sharing knowledge is what the NRG/MSW is all about. 

     

    1 hour ago, Ferrus Manus said:

    Seriously, Kieth, your Lula is a masterpiece that I couldn't hope to compete with as I build this kit. You should be proud of her 

     Thank you very much, Ferrus. I've enjoyed building little Lula, I've tried very hard doing the best me old self can achieve knowing Lula was going to be the bookend to the pile driver. 

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