hydrostat vs gear hp loss

[Soundguy]

Yep.. I mow a reasonable flat open pasture.. I set my range and gear when i pull into the pasture, and I don't hit the clutch till I am pulling out of the pasture. I stay in 5th gear the entire mowing session.. probably 6.5 mph.

I'd have a hard time believing that you can improve on that unless the pasture was as flat as glass and had no tall weeds and there were no ruts to bounce you. In other words.. given identical conditions.. a HST tranny would not improve my time 1% ( should be the same.. etc.. )

Soundguy

 

[Keith_B]

That's what the Bride said a few days ago

Yes, I agree that a gear driven unit will put more power on the ground than a hydro, no denying this, it's a fact. When you get down to the blood and guts, it's traction that critical. No doubt your geared CUT will spin the tires if demanded, so will my hydro.

In my opinion (which i am told occasionally has a limited value) a hydro should accomplish the same work as a geared, as ultimately it will come down to traction. A hydro will give up some speed compared to a geared when the drawbar hp max's out. However again, IMO and situation, I believe I can ultimately do more work faster because I change directions at will and accelerate the ground speed when the load on the engine allows. Maybe with the new powershifts and reversers on geared trannys this is not as big a deal as it once was. I'm an old throwback to when gears were just that, gears. And I gotta admit, I love push and go, lift and stop.

I've stalled out plenty of tractors when they are getting great traction and just didn't have the HP to put a mass in motion. The reality is more drawbar HP allows the tractor to run a lot more efficiently with heavier loads.

 

[BillyP]

NewToy[/left]]I have a hard time believing that a hydro unit will give you a 74% efficiency increase in tilling applications and almost 50% mowing. Must be a magic tractor or the person operating the gear unit was completely inept.

John

So do I. I just said it was interesting reading. Now it's up to you to find out the truth.

Enquiries about this research should be directed to James Corbett jcorbett@mail.lowndes.k12.ga.us

 

[JerryG]

So do I. I just said it was interesting reading. Now it's up to you to find out the truth.

Enquiries about this research should be directed to James Corbett jcorbett@mail.lowndes.k12.ga.us

Sounds like the old story about making the results come out the way you want them. It was an interesting reading the all articles.

 

[NewToy]

So do I. I just said it was interesting reading. Now it's up to you to find out the truth.

Enquiries about this research should be directed to James Corbett jcorbett@mail.lowndes.k12.ga.us

I tried to contact Mr. Corbett but he was down in Talladega trying to qualify that tractor of his.

John

 

[BillyP]

I tried to contact Mr. Corbett but he was down in Talladega trying to qualify that tractor of his.

John

School should be starting back this week or next so give him another try.

 

[BillyP]

Jerry, is there something wrong with your signature or is it my computer?

 

[NewToy]

BillyP, Your signature line doesn't come up on my computer. There is just a little box with a red "x" in there.

John

 

[BillyP]

BillyP, Your signature line doesn't come up on my computer. There is just a little box with a red "x" in there.

John

Thanks John, I did had one before the site upgrade. The funny thing is, I don't even see that red x

 

[JerryG]

Jerry, is there something wrong with your signature or is it my computer?

Billy, It's not your computer. It's this new software. I can't get it to work no matter what I do. I worked on it a couple of times and finely just gave up. I wish someone would tell me how to fix it.