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Bobcat Skidsteer Forums
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McLaren Tracks and Power Question
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<blockquote data-quote="Earthwerks Unlimited" data-source="post: 15971" data-attributes="member: 1300"><p>I spoke to a former McLaren engineer who told me that right off the bat you will lose 30% power. And McLaren custoemr service themselves told me the same thing. The reason is quite simple: the tracks are made in a circle or ring. The ring wants to stay a ring, but when you put it on a machine you are stretching it to some extent but more importantly you are forcing it to conform to the shape of a belt by compressing it. This wouldn't be all that bad if you compressed it and left it alone. But you can't do that as it needs to move continually. And so you are continually compressing it and that takes power. Intertia is another concern--your machine now has to move that heavy rubber track through space to get traction and that takes power--a lot of power. It's sort of like putting big, oversize tires on a pickup that wasn't made to handle them--it affects the intial takeoff and also the braking trying to first get the tire going the trying to stop it. And the other reason is you are effectively making the tires larger or taller by adding the thickness of the track to the diameter---changes the gear ratio, just like on a truck. And that robs power too.</p></blockquote><p></p>
[QUOTE="Earthwerks Unlimited, post: 15971, member: 1300"] I spoke to a former McLaren engineer who told me that right off the bat you will lose 30% power. And McLaren custoemr service themselves told me the same thing. The reason is quite simple: the tracks are made in a circle or ring. The ring wants to stay a ring, but when you put it on a machine you are stretching it to some extent but more importantly you are forcing it to conform to the shape of a belt by compressing it. This wouldn't be all that bad if you compressed it and left it alone. But you can't do that as it needs to move continually. And so you are continually compressing it and that takes power. Intertia is another concern--your machine now has to move that heavy rubber track through space to get traction and that takes power--a lot of power. It's sort of like putting big, oversize tires on a pickup that wasn't made to handle them--it affects the intial takeoff and also the braking trying to first get the tire going the trying to stop it. And the other reason is you are effectively making the tires larger or taller by adding the thickness of the track to the diameter---changes the gear ratio, just like on a truck. And that robs power too. [/QUOTE]
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