Diesel vs gas......................
OK folks, there have been a few to many diesel vs gas threads that have shall we say gone to "Hell and a hand basket"! So if all of you would put in you BEST, no flaming reasons for going gas vs diese...
Forum Discussion
mowsley wrote:
Bert,
Definitely not flaming here just wanting to make a correction. You stated the engine in the M-1 only has 300ft lb of torque. This is WAY off. Honeywell's website lists torque for the AGT-1500 turbine as 2,750ft lb at 3,000rpm with 1,500hp. No way is 300ft lbs going to move 70tons to 20mph in 6 seconds no matter how it is geared.
Mark
Think about it, Mark: Have you ever seen a turbine engine that ran at 3,000 rpm? The engine in the Abrhams tank runs at 26,600 rpm. If it generated 2,750 lb ft of torque at that rpm, it would put out a total of almost 14,000 HP. The 2750 lb ft of torque you found is the output of the gear reduction unit, not the engine itself. But, just as I could not realistically claim that my DMax generates over 5800 lb ft of torque (520 lb ft from the engine * 3 (first gear) * 3.73 (RE ratio)) claiming that the AGT-1500 generates 2,750 lb ft of torque isn't accurate either. T = HP * 5252 / RPM = 1500 * 5252 / 26,600 = 296.2 lb ft of torque from the engine. You can change that number to anything you want (up or down) via gearing, but the engine output will not exceed 296.2 lb ft of torque.
Bert
