Posted by NCWayne on August 26, 2010 at 23:54:54 from (173.188.168.49):
I read an article tonight giving MFG specs for an articulated haul truck that got me to thinking about the discussion on here awhile back. It began with me talking about my 55 and how fast I had had it running and wound up getting into a big discussion centered around HP, gearing, etc. The idea was put out that you could run a car at highway speeds with a small engine given the right gearing but the "majority" replied that it was impossible for various reasons.
For those that replied that it was impossible to get a "full sized" vehicle to a "highway speed" with a small engine, even with the proper gearing, I have these specs for you. The vehicle in question here is a Doosan Moxy MT41, or what is typically called an Artic or articulated haul truck, something that you see on construction sites all of the time. This truck has an 82,010 payload capacity and is driven with a 444HP Scania diesel engine and an automatic transmission with 6 fwd and 3 reverse gears. While it"s top speed is nowhere close to 55 it is well within what could be considered a typical vehicle"s speed with a top end of 32.9 MPH in high gear. Now, here is the interesting part. The article goes on to state that this particular truck has what is considered a "high" HP to ton ratio of 6.38 HP per ton of load.
Given this rating, any way you look at it, no matter what the ultimate HP of the engine, the HP per ton needed to move that 2000 lbs will never be greater than 6.38. Sooo, given those specs it just goes to show what was origionally said is true, given the proper gearing a small engine can indeed take a typical vehicle to a "highway" speed with the proper gearing. In other words given the right gearing you could easily get a 2000 lb car to 32.9 MPH using just 6.38 HP and the proper gearing. If this were not so then how do you explain this vehicle being able to take a 82,010 lb payload over 30 MPH using just 6.38 HP per ton....Remember, these are mfg specs on a production machine, not just something hypothetical like the numbers being thrown out before stating it was impossible.........
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - On the Road with Dave Gohl: Auction Musings - by Dave Gohl. I was thinking the other day about all the auctions I've been to in the last few years. There've been many. Some have been very good, some have been well, disappointing to say the least. But no matter how good or bad auctions may be, we always seem to stay until the item we've come for or are interested in is on the block. I've been to some auctions near and far. I think the furthest has been the Two Cylinder 7 in the Amana Colonies last year. Lots of stuff, lots of people. I've also atten
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
