Mate, I like your oscillating engine and your great video. I have been steaming for eons and am fascinated at the steam pressure gauge at the start registering pressure , though I cannot read the actual pressure gauge numbers and what seems a lot of condensate ( so what ) and after a short while the pressure gauge drops to near zero or thereabouts and stays there for the full run and yet your water gauge glass is so very FULL ( yippee) , such a good pump till it, the
glass water gauge
eventually shows it has not too much reservoiur water left for the run and the pressure gauge STILL shows near zero to indicate the end of the run , do you have a faulty pressure gauge ? Maybe the Mamoli tube should be inverted to the pressure gauge as you may have it filled with water? I do not know. On another matter, my club Webb identity picture shows my model 56 inch Cervia steam engined Tug which I replaced the Stuart 10 to the Stuart twin 5/8 bore and stroke same as yours ? I think, which may be their still selling 11mm or so bore and stroke (me, still imperial and not modern ). My little twin pushes the Cervia displacement 44lbs hull like a rocket , such power. In my latest model build I am struggling with a 46 inch long hull with a Stuart 10 twin AND it is the Kitchen rudder ( that is the struggle) which I have done several times. My mate who is "radio modern" says he will fix/train my transmitter 2.4 ghz on his computer my two rudder cup servos to do "mixing " like Ailerons to impart opposite throws so that the Kitchen cups will then turn such that "I have left and right rudder" in addition to normal opening and closing of the Kitchen rudder cups. I was not to impressed with the threaded screw tiller and the triangular wings mine is ALL brass to impart strength, as you have ALL on a base that imparts steering .I just found I lacked hull room for a swivelling base in my needing a beefy apparatus, as it weighs about 20 to 26 pounds at a guess, so far a lot of finishing still needed ,I love to build big, such is . Though I got off the track, your thoughts on the pressure gauge may be revealing to me ! Regards Lyle.