it's not , it doesn't have a high piched whine , more of a low piched rumbble, gas trubine sounds like a jet engine.sounds like a turbine, due to the sound it makes while approaching, you can hear it when the tank infront of it passes more clearly.
If the first prototype become operational in 2020 then it missed it's window to be included in the new tank , military procurement program time table is long , the new tank probably had it's system selected in the 2015-2016.AES100-based gas turbine tank engine technological demonstrator has been tested in 2020
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There is even a concept of gas turbine hybrid systemView attachment 159401
Of course, this is still some distance from practical application, but the PLA absolutely possesses some technological capabilities.
Or they might just have two engines? There could be a need for two engines with such a power hungry tank. And having two engines that are both mature have there upsides.If the first prototype become operational in 2020 then it missed it's window to be included in the new tank , military procurement program time table is long , the new tank probably had it's system selected in the 2015-2016.
Since it would be wise to avoid feature creep , meaning while you are developing the tank you keep adding new stuff that originally wasn't planned for, that how you get overtime and overbuget programs that can't deliver on time .
Not an efficent solution , most likely the gas trubine program is it's own program with the goal of developing the know how of making a gas turbine, basicly exploring an option.Or they might just have two engines? There could be a need for two engines with such a power hungry tank. And having two engines that are both mature have there upsides.
In theory, in practice whenever PLAGF do exercise with Russians they immediately ask to tap into that helicopter avgas for their T-80U because it's better for their turbines.Gas turbines are often multifuel. Check the GTD-1250 specs. It can run on gasoline, diesel, kerosene, or mixtures of them.
exactly , multifule can be said for the AGT1500 used on the M1 , it can doesn't mean it is perfered , the tank has different horsepower when running on different fuels , also switching to a different fuel isn't a button press , as far I understand it take somewhere like few hours for each tank , the engine needs to be re-tuned.In theory, in practice whenever PLAGF do exercise with Russians they immediately ask to tap into that helicopter avgas for their T-80U because it's better for their turbines.