Yep. That’s the one. The big knob on the lower left is the winding stem. The number one thing that caused them to malfunction was overwinding it, jamming the mainspring. It may just be hard to see in the photo but it had a stop, reset and start button at the top, right (IIRC) corner. The short arrow at three o’clock was an elapsed time arrow.
In the jet syllabus, a lot of what we do in the early instrument stages is against the clock….half standard rate turns, standard rate turn and a bunch of other scan building exercises. On occasion, on Monday mornings the clock would have run down and when the student and instructor synch their clocks, the student’s clock wouldn’t start. I would explain to the stud it was common and tell him to just give it a couple of winds. “How do you do that Sir?” 😳
Last edited by navlav8r; 05/22/22.
