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Figure 3.28: Ground Speed vs Acres
A - 15 Foot
B - 20 Foot
C - 25 Foot
D - 30 Foot
E - 35 Foot
F - 40 Foot
G - acres/hour
H - miles/hour
J - hectares per hour
K - kilometers/hour
Example:
A 25-foot header operating at a ground speed of 9.7 km/h (6 mph) would produce a cut area of
approximately 7.3 hectares (18 acres) in one hour.
3.7.6
Draper Speed
Correct draper speed is an important factor for achieving good
fl
ow of the cut crop away from the cutterbar.
The draper speed is controlled with the windrower Harvest Performance Tracker (HPT). Refer to your windrower
operator’s manual for instructions.
Adjust the draper speed to achieve good feeding of crop for a good windrow. Excessive draper speed will reduce
draper life.
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