Problem $6)$ A $2\mathrm{.}5yd$ hydraulic shovel with bottom dump bucket is excavating tough clay. The swing angle is $120$ and job efficiency is $80\%.$ Estimate the shovel's hourly production in bank measure.

Problem $7)$ A hydraulic excavator is excavating the basement of a building. Heaped bucket capacity is $2\mathrm{.}5cu$ yd$.$ The material is common earth with a bucket fill factor of $0\mathrm{.}8.$ Job efficiency is estimated to be $50mi\frac{n}{h}r.$ The machine's maximum depth of cut is $24ft$ and the average digging depth is $13ft.$ Average swing angle is $90.$ Estimate the hourly production in bank measure.