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(USS) Truman Performs High Speed Rudder Test
USS Harry S. Truman Public Affairs ^ | 7/9/2012 | Mass Comm Spec Seaman Taylor DiMartino

Posted on 07/14/2012 9:58:18 AM PDT by gandalftb

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Comment #61 Removed by Moderator

To: Eye of Unk
told me the Enterprise has a classified emergency flank speed of 75 knts.

He's not being forthright with you. I watched out the cabin window of a 747-400 as the Enterprise caught up and passed us on the way to New Zealand. Disappeared over the horizon.

62 posted on 07/14/2012 1:56:37 PM PDT by steve86 (Acerbic by nature not nurture TM)
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To: gandalftb

Truman maxed out at 30 plus knots during the run

That’s jamming for craft that large.


63 posted on 07/14/2012 2:03:01 PM PDT by ElPaseo
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To: FreedomPoster

Yes she has to do more than 40 knots if you look at the LWL. 1.34 x square root of the length at waterline gives you about 41 knots without over running the bow wave. Means she can likely push 45 knots if she has to.


64 posted on 07/14/2012 2:11:54 PM PDT by WellyP (question!)
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To: WellyP

Probably can if they ignore shaft longitudinal vibration limits.


65 posted on 07/14/2012 2:55:20 PM PDT by GreyHoundSailor
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To: FreedomPoster

Yes she has to do more than 40 knots if you look at the LWL. 1.34 x square root of the length at waterline gives you about 41 knots without over running the bow wave. Means she can likely push 45 knots if she has to.


66 posted on 07/14/2012 2:55:23 PM PDT by WellyP (question!)
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To: gandalftb

Captain: Bootlegger reverse!

Helm: Bootlegger reverse! Aye Aye, sir!

67 posted on 07/14/2012 3:15:11 PM PDT by GreenLanternCorps ("Barack Obama" is Swahili for "Jimmy Carter".)
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To: GreyHoundSailor

Good point that I’ve never had pop up before. Nothing that big and spinning that fast can stay in perfect alignment.


68 posted on 07/14/2012 3:23:49 PM PDT by WellyP (question!)
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To: gandalftb

No thrusters here, it’s basically a function of the fact that a turning ship rotates around a pivot point. Everything forward of the pivot point moves the direction of the turn, everything aft moves the opposite direction. There is also forward (advance) and sideways (transfer) motion in every turn. Laying out tracks on harbor charts I used advance and transfer tables that were entered with degree of turn, degree of rudder and speed to calculate where the ship need to start to turn to end up on the desired track.


69 posted on 07/14/2012 3:34:28 PM PDT by GATOR NAVY
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To: gandalftb

the military channel (or A&E, or the science channel, or one of the few other channels that I watch) did a show on the construction and sea trials of one of our newer carriers. seems like it was the bush, but I don’t recall.

they filmed (or videoed, I guess) the high speed rudder test. it was intense. sailors were ridiculously close to laying on the deck to remain upright. on the starboard side of the hangar deck, all you could see was sky. on the port side, nothing but sea.

nothing that massive should roll over on it’s side like that.


70 posted on 07/14/2012 3:44:24 PM PDT by JohnBrowdie (http://forum.stink-eye.net)
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To: JohnBrowdie

On NIMITZ in the Spring of 1988 off the coast of Oregon we took a 24 degree roll (Air Wing was not on board). The wave that hit us knocked the ship 15 deg off course and over half the yellow gear in the hangar bay broke lose and played bumper cars.


71 posted on 07/14/2012 3:52:24 PM PDT by GreyHoundSailor
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To: Eye of Unk
A close friend who is a nuke specialist in the underwater boat department told me the Enterprise has a classified emergency flank speed of 75 knts.

Either he had no idea what he was talking about and was blowing smoke out of his ass, or he was having fun yanking your chain.

72 posted on 07/14/2012 3:55:43 PM PDT by GATOR NAVY
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To: GreyHoundSailor

holy CRAP. what was the height of that wave?


73 posted on 07/14/2012 4:04:29 PM PDT by JohnBrowdie (http://forum.stink-eye.net)
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To: Grampa Dave; F15Eagle
“I think they have land guys, lol.”

Marines?

The Marines are the wet guys.

74 posted on 07/14/2012 4:11:53 PM PDT by Talisker (One who commands, must obey.)
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To: jboot
In a leading sea the destroyer will dig in at top speed while the carrier will still plane.

Like this?


75 posted on 07/14/2012 4:17:58 PM PDT by AZ .44 MAG (If there were three candidates - Romney, Øbama, and Satan, Øbama would come in third.)
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To: JohnBrowdie

I recall seeing the flight deck awash in green water as the bow went down and when it popped up we heeled to starboard and got pushed off course. Must have been at least 60 ft; the CO came to the bridge wearing his coffee and eggs.


76 posted on 07/14/2012 4:41:22 PM PDT by GreyHoundSailor
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To: GATOR NAVY

I knew he was blowing smoke at me but the thing is nowadays if you repeat an exaggeration enough times, bolster it with a $100 million dollar campaign and also you employ a socialistic tutored army to patrol the internet suggesting its true then eventually enough of the herd says, “Well if he thinks its true then so shall I”

Just a small thread hijack on my part.

But I also hear the Japanese have a flying battleship....


77 posted on 07/14/2012 4:42:01 PM PDT by Eye of Unk (Going mobile, posts will be brief. No spellcheck for the grammar nazis.)
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To: AZ .44 MAG
Heh, they call that a "wet ship."

Actually, the Burkes are good seaboats for being tin cans.

78 posted on 07/14/2012 4:50:32 PM PDT by jboot
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To: RedMDer

Damn, that looks like fun!


79 posted on 07/14/2012 4:54:51 PM PDT by ops33 (Senior Master Sergeant, USAF (Retired))
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To: ops33

LOL! Yes it does. :)


80 posted on 07/14/2012 4:57:07 PM PDT by RedMDer (https://support.woundedwarriorproject.org/default.aspx?tsid=93destr)
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