Advantages and Disadvantages of Jet Engines

So why does the M-1 tank use a 1,500horsepowergas turbine engine instead of adiesel engine? It turns out that there are two big advantages of the turbine over the diesel:

Gas turbine engines have a greatpower-to-weight ratiocompared toreciprocating engines．也就是说,战俘的数量er you get out of the engine compared to the weight of the engine itself is very good.
Gas turbine engines are小than their reciprocating counterparts of the same power.

The main disadvantage of gas turbines is that, compared to a reciprocating engine of the same size, they areexpensive．Because they spin at such high speeds and because of the high operating temperatures, designing and manufacturing gas turbines is a tough problem from both the engineering and materials standpoint. Gas turbines also tend to use more fuel when they are idling, and they prefer a constant rather than a fluctuating load. That makes gas turbines great for things like transcontinental jet aircraft and power plants, but explains why you don't have one under the hood of your car.