you have to be 15 years, 6 months old to get a drivers permit in california.
how old do you have to be to get a drivers permit in california?
15 years , 6 months
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there has been debate as to whether the first driving axle of the 4-12-2 was cranked to provide clearance for the main rod connected to the second axle. union pacific drawings show no such crank on the first axle, and the "railway age" article says "the drivers permit the use of a straight axle on the front drivers..." the spacing between the first and second axles was increased by to provide clearance. based on the published dimensions, this means at its closest the centerline of the inside rod was from the centerline of the first axle. (up drawings reproduced in kratville and bush's "union pacific type" books show the inside rod long and the first and second driver axles apart. the inside cylinder axis was inclined 9.5 degrees and was above the plane of the driving axles at a point ahead of the second driving axle, so the cylinder axis missed the centerline of the second axle by 1-11/16 inches. the rod centerline is closest to the axle when the crank is 54.49 degrees below horizontal.)
4-12-2