USS Virginia gets clean sweep in sea trials

[novagator]

http://209.157.64.200/focus/f-news/1182085/posts

[anonymous]

Pictures!

Virginia's Alfa trials.....
http://www.news.navy.mil/view_featured.asp Type in

Pictures!

Virginia's Alfa trials.....
http://www.news.navy.mil/view_featured.asp Type in search window 'ssn'.

Pretty sub! Her proportions in the water remind me of a Sturgeon 637 boat.....



Steve Reichmuth

[anonymous]

Close up of Virginia's Optronic

Close up of Virginia's Optronic mast head......the shape of things to come.....

Steve



Edited By Dolphin on 1091508636

[novagator]

What is the huge bump

What is the huge bump that runs down the starboard side of the sub for?

[mike byers]

Towed Array housing

Towed Array housing

[jim kerswell]

Now I can see all

[color=#000000]Now I can see all the errors I've made on my Virginia model in painting the masts and adding the draft markings

For one of our latest subs, there sure are a lot of ugly excresences along the port flank. I hope they are just there for the "alpha" trials. Notice the broom aft of the bridge, indicating that all the trials were perfromed successfully.

One question]

[anonymous]

They are cleats. they are

They are cleats. they are also on 688's. And they are not retractable. If I understand excresences correctly then they would be the areas that don't seem smooth, if I got that wrong just attribute it to I'm just a dumb mechanic. If you look close enough it appears that not all of the hull treatment is installed. The arrows you see on the starboard side (they are also on the port side) indicate to the tugs not to push the boat in those areas. There are test instruments located in these areas and in some cases as in unfinished hull treatment damage to the boat (ie..hull valve strainer plate) could occur.
BSF

[anonymous]

For more on the photonics

For more on the photonics mast]Kollmorgen[/url]

Chris



Edited By expfcwintergreen on 1091582208

[anonymous]

The ugly excresences will blend

The ugly excresences will blend in smooth when the antiechoic coverings are added. Like Seawolf, these are more rubber slabs or sheets tuned to the area they are applied to. No more tiles....phew!

Steve

[seawolf]

another question http://www.subcommittee.com/forum/icon_biggrin.gif
what is the

another question
what is the object (rectangular shape) at the mid of port side ?

[jim kerswell]

Thank you, BSF, for the

Thank you, BSF, for the explanation.

JK

[thordesign]

Just as a note of

[color=#000000]Just as a note of interest]

[novagator]

Just as a note of

[color=#000000]Just as a note of interest]

What is wrong with the original appendages that make it such a horrible handler?

[thordesign]

John,

As with the newest release

John,

As with the newest release of our SSN21 model we had to enlarge the horizonal stabilizer and stern plane/tip plane surface area by 10% to get it to handle properly. Remember the real boat is literally flown by computer and the scale boat at slow speeds does not have the surface area necessary due to the rules of similitude. The rudder on SSN774, as well as the horizontal stabilizer/Stern plane area was increased by about 12% and the overall length of the propulsor shroud has been reduced by 10%, plus a new feature that we have discovered was missing from our propulsor that does not decrease turning radius, but has dramatically increased the overall thrust reaction, which when pulsed in combination with the hard over rudder really has cut the turn radius down. I have my SSN21 turning a radius of about 7 feet and Virginia is slightly less with the new mods.

[novagator]

John,

As with the newest release

John,

As with the newest release of our SSN21 model we had to enlarge the horizonal stabilizer and stern plane/tip plane surface area by 10% to get it to handle properly. Remember the real boat is literally flown by computer and the scale boat at slow speeds does not have the surface area necessary due to the rules of similitude. The rudder on SSN774, as well as the horizontal stabilizer/Stern plane area was increased by about 12% and the overall length of the propulsor shroud has been reduced by 10%, plus a new feature that we have discovered was missing from our propulsor that does not decrease turning radius, but has dramatically increased the overall thrust reaction, which when pulsed in combination with the hard over rudder really has cut the turn radius down. I have my SSN21 turning a radius of about 7 feet and Virginia is slightly less with the new mods.

Thanks Matt! I can't wait to see pics of your new Virginia class.