jenkinsph
Super Star Member
Steve, I see what you are saying and you have a good point but don't you think it might be more complex than that. I would think the ground speed would be limited by the quality of the cut. If two tractors can both turn the mower at 540 rpm won't the ground speed be limited more by the mower capability rather than the tractor hp. An other thing is time. Doesn't it take more energy to do the same job faster. So going to a six foot mower will get it done quicker but will also take more fuel.
Just thinking out loud.
Gordon,
I don't think there is much difference in efficientcy between the mowing speeds to matter. Usually larger tractors can generate more hp hours/gallon of fuel than smaller tractors A boat though would be a different story to make a boat go 25mph is one thing to go 50 nph may take three times as much fuel.