I guess it comes natural to me to slow ground speed when running out of power. But then I was driving tractors long befor cars. I can easily see if your use to a car that it would be natural to want to push harder. I usially run in low if I don't need the ground speed less pressure/torque for the hydro motors to turn the the final drive. Less pressure = less heat = longer life or so I'm told by guys who work on combine hydros. It has been my experience with the 72" RFM on the B7610 I can go full speed in low all the time and not run out of power but at the same speed in high range I am out of power when going up hill and must let up on the hydro. So perhaps there is greater effency with the hydro running faster under less pressure? Not sure.
More is not better with a hydro
- Thread starter btolle
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_RaT_
Super Member
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- 5,813
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- Peoples Republic of Northern CA.
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<font color="blue"> I would much rather be on the ground wishing I was in the air, then in the air wishing I was on the ground.
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That's pretty good Mike. I have never thought of it that way but it certainly summed up my idea of it, well that and the cost.
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That's pretty good Mike. I have never thought of it that way but it certainly summed up my idea of it, well that and the cost.
DmansPadge
Veteran Member
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Thats a great post Bill. I got my brushhog last week and finally got to use the tractor a little. I found myself using the pedal like a gas pedal. Even though I know better... it really didn't sink in until I read your post. As said earlier.... you learn something new every day!
stevepio
Member
Kind of funny the way different people learn the same things in different ways. The wife and I both love driving cars with standard transmissions. Once I finally figured the tractor out and the wife was in training, the way I explained the hydro pedal was that it's not the throttle, it's an upshift / downshift pedal. When the load goes up, you need to downshift so as not to stall. Instant success. She doesn't tractor often, but never has problems when she does!
MadDog
Platinum Member
Yep. I learned in a C150, too. Entirely agree w/your "philosophy of flight." Takin' up gen aviation planes is kinda like climbing mountains; "when in doubt, don't." /forums/images/graemlins/grin.gif
But, assuming that you survive, you do learn from those hairy experiences; I found that I was choosing to stay on the ground when I'd been flying for 20 years, in conditions that I'd have gone up in without hesitation when I had just gotten my ticket.
To adapt a line from the police training manuals; "there are old pilots and bold pilots, but d**n few old, bold pilots." /forums/images/graemlins/wink.gif
But, assuming that you survive, you do learn from those hairy experiences; I found that I was choosing to stay on the ground when I'd been flying for 20 years, in conditions that I'd have gone up in without hesitation when I had just gotten my ticket.
To adapt a line from the police training manuals; "there are old pilots and bold pilots, but d**n few old, bold pilots." /forums/images/graemlins/wink.gif
MadDog
Platinum Member
BTW, didn't mean to hi-jack the thread; the analogy to the speed/climb tradeoff, at any given power setting, in an aircraft, really does apply.
PineRidge
Super Member
I am a believer.
