YM1700 How may hrs on a tank

[LMTC]

I'm going strictly by clock hours. I've never timed my tach to see how it relates to time....I'll have to do that some time.

If a tach-hour for a given tractor is 2500 RPM and the tractor runs at 1250 RPM for 1 clock hour, it will show 1/2 hour on the tach-hourmeter. If it runs at 2500 RPM for 1 clock hour, it will show 1 hour on the tach-hourmeter.