Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

I'm still waiting on the Nickel plater to get my parts done, but have been steaming it often the way it sits now & enjoying it immensely.
I performed an endurance run this weekend of my J-42R , I filled both boilers to the very top of the sight glass & ran them for 4 hrs non-stop with "on the fly" oiling every hour, this was on a homemade variac & I had it running at just above stall speed, as the water was being used up I could incrementally turn the variac down. one boiler still showed 1/8" above the bottom sight glass nut ,while the other was right even with the bottom nut, had I pushed it, I feel I could have gotten another 30-45 minutes out of it if I wanted to....but this was plenty. very pleased with this plant.