got throttle response?

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ericjon262
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got throttle response?

Post by ericjon262 »

saw something pretty cool today, watched a 53 year old submarine steam plant go from a stop to ahead standard (60 shaft rpm). it's pretty amazing how much power can be extracted out of two steam turbines.
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Shaun41178(2)
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Re: got throttle response?

Post by Shaun41178(2) »

A+++++++++++ post. Would read again
ericjon262
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Re: got throttle response?

Post by ericjon262 »

lol, yeah, I guess it seems dumb, but when you see the stuff in real life, going from a stop to 60 rpm in a matter of seconds when the shaft being turned is ~ 20" in diameter, turning a propeller that's probably 15 feet in diameter, and and being turned by a bull gear is roughly 25 feet in diameter, and all very heavy, it's pretty cool, and amazingly smooth/quiet.

I guess too though, in all fairness, it's rated to 15000 hp...
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Series8217
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Re: got throttle response?

Post by Series8217 »

take a video next time
ericjon262
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Re: got throttle response?

Post by ericjon262 »

I wish I could, they don't allow video cameras on site, much less on the sub.
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The Dark Side of Will
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Re: got throttle response?

Post by The Dark Side of Will »

Similar impression when an H-60 pilot releases the rotor brake following engine start.
That's just hot gas flowing over a turbine... and about 40:1 gear reduction.
ericjon262
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Re: got throttle response?

Post by ericjon262 »

there's a pretty healthy gear reduction associated with the sub too. I bet the forces on the gear reduction unit are insane, that's over 53 feet of rotor to get spinning!
"I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."
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