FARM MECHANICS. 



153 



Weight of Horse Influences Pulling Power. 



Carefully made tests indicate that a horse may safely 

 exert, when walking 2.5 miles an hour and working 10 

 hours a day, a traction equal to about one-twelfth to one- 

 tenth its weight. 



Bi-LGiAN Stallion, Shoviing Draft Tvpl. 



520. How many horsepower is a horse weighing 1.200 

 pounds capable of developing when walking 2.5 miles an 

 hour and working 10 hours a day ? A 1,600-pound horse ? 



Process: 



1/10 of 1,200 = 120 Pounds the horse is able to pull. 



120 X 5,280 X 2.5 



=: 0.8 Horsepower. 



1,980,000 



521. .\ l.lOO-pound horse? 1,000-pound horse? 800- 

 pound horse? 



