Check this YouTube video out. The WW2 "vintage" dynamometer uses at least 2 tubes.
Anybody with solid info. please comment in the video and post here.
TIA.
Anybody with solid info. please comment in the video and post here.
TIA.
Interesting, I wonder why a water brake was used, rather than an DC gen load, or eddy current dyno...they were both heavily in use by WWII. (And probably, in fact, more accurate, certainly to changing load, or load curve testing)
I guess, just compactness. Perhaps this was a small lab unit used in Military servicing sheds, or mobile, so portability was key?
But that is fixed load, no good for finding stall torque (assuming the user wanted to, which of course they may not have.)
Do you try to find stall torque on a combustion engine?
Incidentally, in the building where I work, there is a large tapped resistance load, used for similar things, albeit involving AC or DC electricity. I need check to be sure but it is likely slightly pre-WWII.
I guess, just compactness. Perhaps this was a small lab unit used in Military servicing sheds, or mobile, so portability was key?
But that is fixed load, no good for finding stall torque (assuming the user wanted to, which of course they may not have.)
Do you try to find stall torque on a combustion engine?
Incidentally, in the building where I work, there is a large tapped resistance load, used for similar things, albeit involving AC or DC electricity. I need check to be sure but it is likely slightly pre-WWII.
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