Problem
When material is to be moved long distances semi-U (SU) blades are a good choice as the short wings increase capacity compared to straight blades. A measure of a dozer blade's effectiveness in moving material is the ratio of horsepower to the cubic yards of blade load. A measure of the blade's ability to cut hard material is the ratio of horsepower to foot of blade length. Considering the use of a semi-11 blade, plot these ratios for CAT D6R Series II, CAT D7R Series II, CAT D8R Series U. and D9R dozers. Horsepower (use the flywheel horsepower values) and blade data can be found at svww.cat.comt
a. Is it bean to use a D8R or a D9R if we want bean volumeuic pushing ability? (D8R 27.2 compared to 23.2 hp/cy)
b. Which is the best dozer to use if we need cutting ability? (D9R highest hp/ 11 ratio, 28.9 hp/fl)
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.