After reading all the posts there is one item not mentioned that purely separates the two engines you mention. Yes they will do the same work , per second , but does the phrase "duty cycle" ring a bell? How long continiously do you suspect that 12000 rpm engine will DO the same work as the 2000 rpm tractor engine? Now we see the diference. Gear down that 12000 rpm engine so it will pull a 20' disc and put it and the tractor beside ea other and that bike engine will be toast in 200' , the tractor will pull it indefinately. So to answer your post...YES HP is a very poor measurement , in and of itself , of the capabilities of a machine , period..
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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