A CAT D$7$H with a straight blade is being used to push a dry, non$-$cohesive soil weighing $106$ pcf$.$ It is estimated the soil will swell $7\%$ from bank to loose state. The push will be $300ft$ downhill on a $3\%$ grade, with no opportunity for slot dozing or other production increase. The operator has an average skill rating and visibility will be reduced because of dusty conditions. Because the site is expected to be congested, the equipment will be operated for $45$min. each hour. The D$7$ dozer you are using has a power$-$shift transmission.

Calculate the hourly production of the # of bank yards, and the production cost per bank yard per hour $($both in bank measure$).$ Assume an operator costs only $$51\mathrm{.}50$ per hour and assume there is no ripper on the machine.