Nice pic of the USS Harry S. Truman running trials.

[dennilfloss]

Big ship can haul ass. ^_^

 

[Markbnj]

All ahead, hard to port. Hope she don't roll over.

 

[Sonikku]

I'll never know why we didn't give Truman 4 more years. He unleashed nuclear hell on the commies.

 

[waggy]

great pic!

 

[T9D]

Holy crap that's nuts.

 

[uhohs]

it's drifting

 

[UglyCasanova]

What is the really light blue in the water? Is that air bubbles from the propellers?

 

[MtnMan]

I'm a former carrier sailor, and I've been on a conventionally fueled bird farm when it was balls to the wall to get somewhere in a hurry. I can only imagine what these new ones are capable of.

Carriers can out run just about every other ship out there, or at least surface ships.

 

[Perknose]

I'll never know why we didn't give Truman 4 more years. He unleashed nuclear hell on the commies.

Do0d, so FAIL. We were allied with the only commies (Russia) in that war.

The communist party was outlawed in Imperial Japan. The right wing, ultra-nationalist, military clique upon which we "unleashed nuclear hell" were anything but communists.

 

[tynopik]

What is the really light blue in the water? Is that air bubbles from the propellers?

it's from the neon kit under the hull

 

[OutHouse]

it's from the neon kit under the hull

Win

 

[UglyCasanova]

it's from the neon kit under the hull

Lol

 

[pcgeek11]

What is the really light blue in the water? Is that air bubbles from the propellers?

Yes, Cavitation.

Propulsion: 2 × Westinghouse A4W nuclear reactors, 4 × steam turbines and 4 × shafts
260,000 shp ( Shaft Horse Power) (194 MW)
Speed: 30+ knots ( 56+ km/h; 35+ mph )

 

[VulgarDisplay]

I'd like to wakeboard off the back of that.

 

[waggy]

it's from the neon kit under the hull

lol


I never thought about how fast those huge ships go. its gotta be fun to be on. but scary as shit when they hit turns like that.

 

[Kaido]

Fast & Furious 7: You break his ship, he'll break your neck.

 

[_Rick_]

"just rearranging the hangar deck"

 

[Markbnj]

Carriers can out run just about every other ship out there, or at least surface ships.

When it comes to displacement hulls longer == faster. Every displacement hull has a theoretical top speed at which the wave created by the bow is about the length of the waterline. Known as "hull speed" it is something like 1.35 * the square root of the waterline length... if I remember the calculation right.

 

[dennilfloss]

And then the rated figures are often exaggerated (at least for commercial ships). I am currently in communication with someone writing an article on fast big ships for Ships Monthly. The SS United States was the fastest ocean liner and is sometimes quoted as having reached 44 knots during trials but his examination of the actual sea trial papers shows she only did 38 knots (still an extraordinary speed). Similarly, the Iowa-class battleships never reached their projected speed and in fact he found the Richelieu to be the fasted battleship at least as far as speed trial results are concerned. Cavitation is a major factor limiting maximum speed, even when taking into account what is generally referred to as the Admiralty Coefficient.

Here's a primer on ship propulsion.

http://www.google.ca/url?sa=t&rct=j...hJxJs0JM68yTLMFgQ&sig2=ddABuhQ8o38HNI0FEd16mQ

 

[Bacstar]

I remember doing something like this while I was in the Navy. I was doing a rudder PM where we had to do full port and starboard turns at Full speed. I had control of the rudder from the rudder hydraulics room. After the first turn to starboard, I can hear banging noises throughout the whole ship...felt like we were going to tip over too... hehehe. Got a call from the captain soon afterwards to stop the rest of the PM.

 

[Raduque]

I find it funny that "Hauling ass" for a ship is about 30-35mph.

 

[rasczak]

I find it funny that "Hauling ass" for a ship is about 30-35mph.

And then you think about how large that ship is going 30-35mph.

 

[Scotteq]

I find it funny that "Hauling ass" for a ship is about 30-35mph.

And then you think about how large that ship is going 30-35mph.

Take the Empire State Building.... Lay it on it's side... Land airplanes.on it..

I don't know about the newest ships, but back when the USA Carl Vinson was the latest, the much older Enterprise (now retired) was still faster.

 

[SlowSpyder]

Yes, Cavitation.

Propulsion: 2 × Westinghouse A4W nuclear reactors, 4 × steam turbines and 4 × shafts
260,000 shp ( Shaft Horse Power) (194 MW)
Speed: 30+ knots ( 56+ km/h; 35+ mph )

260,000 horsepower is a lot..! But just think, that's less horsepower than just the fuel pumps combined for on a Saturn V rocket from the 60's (and that isn't counting the power also produced by the oxidizer pump shafts, or of couse actual thrust)!

Obviously there is a difference between something designed to make power for two minutes vs. decades. But I think we need a rocket engine or two for when we really need to get somewhere fast.

 

[Bacstar]

1 knot = 1.15 mph just an FYI...so 38 knots is about 44 mph. More amazing about that is the ship can maintain that speed for days or for however long it takes to deplete the reactors.

Another story hehehe: submarine I was on, did a high speed run from Norfolk to the Mediterranean in a little more than a 1 week and half, stopping every once in awhile to get our bearings. (if I remember correctly)