Speedy carriers

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David Newton
Posts: 1858
Joined: Thu Nov 17, 2022 9:37 am

Speedy carriers

Post by David Newton »

Sal Mercagliano has made a fool of himself in one of his most recent What's Going On With Shipping episodes on YouTube. He claimed that he once "saw" a CVN doing 43 knots!!
Sailed with Military Sealift Command and saw Theodore Roosevelt on a breakaway from my oiler and tracked her with the CAS on our radar.

Maybe the radar was off, but she put the throttles down and was showing 40+ knots.
I pointed out that this would require on the order of at least 661,000 shp or 165,300 shp per shaft. Can you say CAVITATION!!?

I really do wish that mariners like him would think a bit more before repeating nonsense like that. Basic power requirement calculations alone show how utterly ridiculous it is.
Poohbah
Posts: 3512
Joined: Thu Nov 17, 2022 2:08 pm
Location: San Diego, CA

Re: Speedy carriers

Post by Poohbah »

David Newton wrote: ↑Fri Oct 20, 2023 11:46 pm Sal Mercagliano has made a fool of himself in one of his most recent What's Going On With Shipping episodes on YouTube. He claimed that he once "saw" a CVN doing 43 knots!!
Sailed with Military Sealift Command and saw Theodore Roosevelt on a breakaway from my oiler and tracked her with the CAS on our radar.

Maybe the radar was off, but she put the throttles down and was showing 40+ knots.
I pointed out that this would require on the order of at least 661,000 shp or 165,300 shp per shaft. Can you say CAVITATION!!?

I really do wish that mariners like him would think a bit more before repeating nonsense like that. Basic power requirement calculations alone show how utterly ridiculous it is.
"Math is hard." -- Barbie
Nik_SpeakerToCats
Posts: 2416
Joined: Sat Dec 10, 2022 10:56 am

Re: Speedy carriers

Post by Nik_SpeakerToCats »

D'uh, perhaps they were separating at ~40 knots due widely divergent courses ??

( Remembering how geometry can make some astronomical effects appear superluminal... )

You'd think the guy would have thought of this, a gaffe equivalent to that Fleet Commodore demanding 'Right of Way' of an Alaskan lighthouse...
If you cannot see the wood for the trees, deploy LIDAR.
Craiglxviii
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Joined: Thu Nov 17, 2022 7:25 am

Re: Speedy carriers

Post by Craiglxviii »

Nik_SpeakerToCats
Posts: 2416
Joined: Sat Dec 10, 2022 10:56 am

Re: Speedy carriers

Post by Nik_SpeakerToCats »

"Math is hard." -- Barbie

"Joined-Up Thinking is Rare." -- Nik
If you cannot see the wood for the trees, deploy LIDAR.
warshipadmin
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Joined: Mon Nov 28, 2022 4:16 am

Re: Speedy carriers

Post by warshipadmin »

I always like the one about "she was so fast we could waterski behind her". A friend of mine was a competitive waterskiing enthusiast. He reckoned a skiier could get up at 11 knots.
Craiglxviii
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Joined: Thu Nov 17, 2022 7:25 am

Re: Speedy carriers

Post by Craiglxviii »

warshipadmin wrote: ↑Sun Oct 22, 2023 2:41 am I always like the one about "she was so fast we could waterski behind her". A friend of mine was a competitive waterskiing enthusiast. He reckoned a skiier could get up at 11 knots.
It’s also worth noting that a CVN at full chat is the same as the Empire State Building turned on its side whilst breaking the in-town speed limit. One could most certainly waterski behind one, with a long enough rope to avoid the rooster tail!
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jemhouston
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Joined: Fri Nov 18, 2022 12:38 am

Re: Speedy carriers

Post by jemhouston »

You can ski behind a cruise ship. https://www.youtube.com/watch?v=2rjIzlwBiKs
Jimlad3
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Joined: Mon Oct 16, 2023 8:37 pm

Re: Speedy carriers

Post by Jimlad3 »

I know friends who've seen CVNs going fast - their view is its impressive, but a pain if your fleet train is left a weeks sail away!
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