Browse Standards J1521_198510
Historical ISSUED 1985-10-01

Truck Driver Shin-Knee Position for Clutch and Accelerator J1521_198510

This SAE Recommended Practice describes two-dimensional, 95th percentile truck driver, side view, seated shin-knee contours for both the accelerator operating leg and the clutch operating leg for horizontally adjustable seats (see Figure 1). There is one contour for the clutch shin-knee and one contour for the accelerator shin-knee. There are three locating equations for each curve to accommodate male-to-female ratios of 50:50, 75:25, and 90:10 to 95:5.
J1521_201412
2014-12-03
Latest
Reaffirmed
J1521_200902
2009-02-10
Historical
Reaffirmed
J1521_199812
1998-12-01
Historical
Reaffirmed
J1521_198703
1987-03-01
Historical
Revised
J1521_198510
1985-10-01
Historical
Issued

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