"Upper RH is 1300W 1500RPM 10.7A 1.3HP 8.34N-m"
Kristi
Not sure if his Lbird prop size is big enough for the 1300...and didn't really offer THAT one, I only have one of those. I still got plans for that one. Just showed it for size comparisons.
Not giving up my chromedelco either. That has to power the special smoke that can only be found in Lucas electrics, it works a LOT harder than your average Delco working those Delco electrics (there's a LOT more smoke in Lucas electrics, let me tell you).
Remember he does have the axial flux, that will be his big power, this is just a trickle charger, light wind....and comparable to the size of a redelco or chromedelco or even that turquoise special pearlized moon rock halo solar-panel-charging-at-night delco.
It gives a good size comparison using the most precision-machined standard motors we can put in that space. Future comparisons can be made. This changes the 'comparison' to a purpose-built wind generator (Chris's axial) and a smaller repurposed generator (the AC PMA servo motor). And from what I have read, this is probably the best repurposed motor for the job, it is meant for high-speed continuous duty, low-speed and locked rotor torque, and has better bearings on just the rear shaft than any delco can put on the front. they are all Yaskawa motors, I sent SF the model numbers, but I wasn't going to list them here. None of them can be certified for any industrial use anyway.
And the front bearings..the large case motors have a front inner bearing and rotor shaft diameter of 32mm (1.25"). Outer diameter approx. 3 inches. A BIG bearing for a small motor. You won't wear that one out unless you run without the shaft seal caps and somehow flood the case and then let it sit for a year. I've found two of these motors with bad bearings - in decades, and removed from feeble old poor abused overworked robots, forced to work in the heat and humidity, near acid tanks that would peel the skin off your face, poor poor things. They were faithful robots, always did their chores. I'll miss them.
The rough math I've done, and have at least a bit of bench testing (turning the motor manually and measuring thru a 3-phase rectifier open DC volts) suggests the large case 1500RPM motors reach 13V at 120RPM, and the small case 3000RPM motors at double (240). The torque to move the shaft is inversely proportional so the small case motors may spin up quicker.
Shafts - the larger case at 19mm (0.75") or 22mm (0.875") shaft, older 850 has taper-lock keyed shaft - will need an adaptor or a taper-lock hub mount.
And the wife won't explode because SF got some money back and replaced the refit commercial charger with a precision torque motor ($$) for free. Tony will go away, everyone will calm down. Things will get happier at the SF house and we can see this post continue. SF only has to buy some red paint, and never mention the redelco again, just point and say yep I got a motor, forget that redelco, I got my machine killing tools and ventured into the industrial wasteland, tracked and killed a robot, stripped it's carcass, and put it on a pole in my yard, woe be on to any robots that tread here, rip em. strip em, and make 'em spin props all day, yep, yep, and move on.
Then when I get back on track with my land, I will have a reference to follow after SF flies one of these and gets some performance. A good reference for what a small-wind hobbyist can expect.
This thread will still have a purpose to exist.
