Based on the scraper specifications in Table $8\mathrm{.}1$ and on the performance charts in Figures $8\mathrm{.}10,$ and for haul conditions stated here, analyze the probable scraper production. How many scrapers should be used and what will be the production in bcy per hour?

The material to be hauled is cohesive. It has a swell factor $0\mathrm{.}77$ and unit weight of $2940I\frac{b}{b}cy.$ The rolling resistance for the well$-$maintained hull $4\%.$ Use a $0\mathrm{.}85$ min load time. This will result in an average of $89\%$ heaped capacity. To account for both acceleration and deceleration use an average of $5mph$ over a distance of $200ft.$ Use a $50$min hour efficiency factor. The total length of haul is $2500ft$ and has the following individual segments when moving from cut to fill: $(30pts$

$\backslash$table$[[600ft,$at$,5\%$ grade$],[1700ft,$at$,2\%$ grade$],[200ft,$at$,-4\%$ grade$]]$