hazmat
Elite Member
- Joined
- Feb 12, 2002
- Messages
- 4,034
- Location
- West Newbury, MA & Harrison, ME
- Tractor
- Kubota L5460HSTC
I'm trying to compare specs as I research buying a tractor. I've been frustrated trying to compare the "manuverabilty" of the different models. From the posts I've read, I believe people have been using terms radius and diameter interchangebly.
Here's the geometry lesson: The diameter is all the way across the circle, the radius = 1/2 the diameter.
I will try to remember to bring my tape measure as I visit the dealers. In the meantime I want to know / confirm the turning diameter and uncut circle diameter (assume 60" deck) of the following models:
BX 2200 turn dia 195", uncut 75"
JD X575
JD 4010 (I know I'm not going to get any answers here)
JD 4110 (could subsitute JD 4100 here)
NH TC18 turn dia 166", uncut 46"
NH TC21D turn dia 182", uncut 62"
All numbers I've included are calcs based on manufacturers published turning radius I'm not sure that the calculations are correct (the published specs should be the largest arc created by any part of the tractor, I am assumming that the arc is created by the wheels), but here they are.
Turnind dia = (turning radius + deck protrusion) *2
uncut dia = (turning radius - width - deck protrusion) *2
The diameters should be easier to measure, make a circle with your tractor and then bust out the tape & measure the tire track circle. Be sure to add the amount that the deck sticks out beyond the tires. The uncut circle requires less math, but requires that you remember to do it before you cut the grass.
Think of it as an excuse for more seat time.
If your neighbors think you've lost it as you are doing donuts in the front yard, you can explain to them that you are participating in a nationwide study sponsered by TBN that will benifit the human race for years to come.
If you have another tractor model & want to post its measurements, I'm sure others will find it useful as well.
Proffessor Hazmat (sometimes being an engineer is a curse)
Here's the geometry lesson: The diameter is all the way across the circle, the radius = 1/2 the diameter.
I will try to remember to bring my tape measure as I visit the dealers. In the meantime I want to know / confirm the turning diameter and uncut circle diameter (assume 60" deck) of the following models:
BX 2200 turn dia 195", uncut 75"
JD X575
JD 4010 (I know I'm not going to get any answers here)
JD 4110 (could subsitute JD 4100 here)
NH TC18 turn dia 166", uncut 46"
NH TC21D turn dia 182", uncut 62"
All numbers I've included are calcs based on manufacturers published turning radius I'm not sure that the calculations are correct (the published specs should be the largest arc created by any part of the tractor, I am assumming that the arc is created by the wheels), but here they are.
Turnind dia = (turning radius + deck protrusion) *2
uncut dia = (turning radius - width - deck protrusion) *2
The diameters should be easier to measure, make a circle with your tractor and then bust out the tape & measure the tire track circle. Be sure to add the amount that the deck sticks out beyond the tires. The uncut circle requires less math, but requires that you remember to do it before you cut the grass.
Think of it as an excuse for more seat time.
If your neighbors think you've lost it as you are doing donuts in the front yard, you can explain to them that you are participating in a nationwide study sponsered by TBN that will benifit the human race for years to come.
If you have another tractor model & want to post its measurements, I'm sure others will find it useful as well.
Proffessor Hazmat (sometimes being an engineer is a curse)