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    Steam engine.
    Plans were purchased for a ยฝ inch bore ยฝ inch stroke, twin cylinder double acting oscillating steam engine designed by Basil Harley, published by Model Maker plans service. Probably first printed in July 1983, I have the August 1983
    Model Boats
    with part 2 in a series of articles to build the engine and boiler along with a 42โ€ long steam launch. I have deviated from the original plans by making a solid crank, using cast iron for the steam chest also making the bearings heavier and changing how the cylinders are pushed onto the steam chest, this can be seen by comparing old to latest photo's in the old photo (Left photo) there is no white lagging (Teflon) around the cylinders, latest photo's have lagging and the new method of pushing cylinders onto the steam chest.
    2 months ago by stevedownunder
    Transmitter Mode 2
    Hi Doug, I have now introduced the ELEVON function on my twin, independently controlled screw models. That puts both motors on the RH stick (up/down) for simultaneous speed control and LH/RH differential operation for side to side. Tried to explain it in more detail in a recent Brave Borderer blog update. It is also covered in a recent
    Model Boats
    mag article. With twin, independent motors find it so intuitive that I like it. Previously had one motor on LH stick and the other on the right. Found them difficult to synchronize and then steer accurately. Pity my only tests are on the bench as no sign of ice free water here yet. Will report water tests in due course Rowen
    2 months ago by RHBaker

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