Turbine boats
10-29-2022, 06:29 AM
#61
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Gold Member
I've got dry pipes on my tiger so overall noise I wasn't too worried about. I was more wondering if that high pitch squeel hurts your ears or if the phone recordings make it sound worse.....
10-30-2022, 07:45 AM
#63
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The high pitch you hear is intake noise and most of the boats turbine marine rigged had flaps that closed the intakes to the engine compartment for idling around marinas. That makes a huge difference in sound level…
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10-30-2022, 03:38 PM
#65
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Huey T-53 Startup
Fortunate to get a ride in the left m60 gunner position on.this Huey. The birthpiece of most Marine Turbines??
Last edited by HuskerPerformance; 10-31-2022 at 02:30 PM.
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10-30-2022, 08:14 PM
#68
A turbine is thirsty at ground idle(not counting the fire show ) it is also loudest then it goes super duper thirsty at full power but it is also its quietest totally backwards from piston engines a few guys here can put a fuel burn chart up its interesting, the noise is loudest at idle because thecompressor case has openings that open to let some compressed air out so as not to blow the flame out. as more fuel is sprayed in for a bigger fire in the burner cans it can now take the extra air and the bleed bands close up and force all the air through the engine half the air is for cooling and half gets burned i believe. the very old T53 1950s tech has a low compression ratio i think its 6 or 7 to 1 modern turbines with advanced composite blades are over 50-1 in the 40s they figured out how to make the power turbine or hot section so they used 3 of them on the huge radial engines of the day they were connected to the crank and added 400 hp each it took another 10 years to figure out making the compresser section with hollow blades with cooling holes to keep it from overheating and melting those old engines are really cool to see hear and study we were much farther advanced than most realize!
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OLDRAT (10-31-2022)
10-31-2022, 08:31 AM
#69
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