Moderator: Community Manager
[Post Reply] [*]  Page 4 of 8  [ 75 posts ]  Go to page « 1 2 3 4 5 68 »
Author Message
David Latuch
Post subject: Re: My Revised 21 Century BattleshipPosted: January 30th, 2014, 10:11 pm
Offline
User avatar
Posts: 1341
Joined: January 16th, 2014, 1:02 pm
Location: Vermont, USA
Here are the Bow and Stern Views of the USS Vermont (BBGN-72)

[ img ]

_________________
My Avatar is
French Vice-admiral Louis-René-Madeleine Le Vassor de La Touche, comte de Tréville
The original spelling of my last name is: LaTouche.


Top
[Profile] [Quote]
erik_t
Post subject: Re: My Revised 21 Century BattleshipPosted: January 30th, 2014, 10:27 pm
Offline
Posts: 2936
Joined: July 26th, 2010, 11:38 pm
Location: Midwest US
The degree to which you block your SPY-1 aft is rather unfortunate. One wonders if a ship of this implausible scale would simply mount redundant sets of arrays.

If nothing else, a 0/90-forward 180/270-aft arrangement like Ticonderoga would give you 360deg coverage with only four arrays.


Top
[Profile] [Quote]
apdsmith
Post subject: Re: My Revised 21 Century BattleshipPosted: January 30th, 2014, 10:54 pm
Offline
User avatar
Posts: 855
Joined: August 29th, 2013, 5:58 pm
Location: Manchester, UK
Hi David,

Another question that's been bugging me slightly ... does your battleship have Kort nozzles? I'm trying to make out what that surround on the props is and I just can't figure out what it would be if not that.

Regards,
Adam

_________________
Public Service Announcement: This is the preferred SB / FD font.
[ img ]
NSWE: viewtopic.php?f=14&t=5695


Top
[Profile] [Quote]
Shipright
Post subject: Re: My Revised 21 Century BattleshipPosted: January 31st, 2014, 12:23 am
Offline
Posts: 397
Joined: February 15th, 2013, 2:16 pm
The SPY is only masked because of that random place saver arrays on the aft mast which we still don't know what the purpose for them is. If it was lowered or lopped off it would be fine.


Top
[Profile] [Quote]
David Latuch
Post subject: Re: My Revised 21 Century BattleshipPosted: January 31st, 2014, 9:40 am
Offline
User avatar
Posts: 1341
Joined: January 16th, 2014, 1:02 pm
Location: Vermont, USA
Yes propulsors by any other name still reduce noise snd improve performance.

_________________
My Avatar is
French Vice-admiral Louis-René-Madeleine Le Vassor de La Touche, comte de Tréville
The original spelling of my last name is: LaTouche.


Top
[Profile] [Quote]
acelanceloet
Post subject: Re: My Revised 21 Century BattleshipPosted: January 31st, 2014, 9:44 am
Offline
User avatar
Posts: 7510
Joined: July 28th, 2010, 12:25 pm
Location: the netherlands
yes, but what kind of propulsors are these?

the fact that carriers still have unducted propellers show that these work best for ships of that size, and I could give you more technical reasons why unducted propellers are used, but what kind of have you used, and for what reasons?

_________________
Drawings are credited with J.Scholtens
I ask of you to prove me wrong. Not say I am wrong, but prove it, because then I will have learned something new.
Shipbucket Wiki admin


Top
[Profile] [Quote]
apdsmith
Post subject: Re: My Revised 21 Century BattleshipPosted: January 31st, 2014, 10:14 am
Offline
User avatar
Posts: 855
Joined: August 29th, 2013, 5:58 pm
Location: Manchester, UK
Hi Ace,

I, of course, defer to your expertise, but I understood that the whole ducted props thing was more about performance at a given speed - with the efficiency of a ducted prop tailing off at ~10+ kt compared to an unducted prop. Is that correct? It's not something I've researched a great deal (and, to be fair, isn't something I'm sure counts as "your area" either...)

Regards,
Adam

_________________
Public Service Announcement: This is the preferred SB / FD font.
[ img ]
NSWE: viewtopic.php?f=14&t=5695


Top
[Profile] [Quote]
acelanceloet
Post subject: Re: My Revised 21 Century BattleshipPosted: January 31st, 2014, 10:36 am
Offline
User avatar
Posts: 7510
Joined: July 28th, 2010, 12:25 pm
Location: the netherlands
yeah, ducted props work on relatively higher powers and relatively low speed.

_________________
Drawings are credited with J.Scholtens
I ask of you to prove me wrong. Not say I am wrong, but prove it, because then I will have learned something new.
Shipbucket Wiki admin


Top
[Profile] [Quote]
apdsmith
Post subject: Re: My Revised 21 Century BattleshipPosted: January 31st, 2014, 10:50 am
Offline
User avatar
Posts: 855
Joined: August 29th, 2013, 5:58 pm
Location: Manchester, UK
Oh, I'd missed the "higher power" thing ... which is, therefore, why they're tugboat props. Basically.

_________________
Public Service Announcement: This is the preferred SB / FD font.
[ img ]
NSWE: viewtopic.php?f=14&t=5695


Top
[Profile] [Quote]
David Latuch
Post subject: Re: My Revised 21 Century BattleshipPosted: January 31st, 2014, 7:44 pm
Offline
User avatar
Posts: 1341
Joined: January 16th, 2014, 1:02 pm
Location: Vermont, USA
I too defer to your expertise, are propulsors used on submarines merely because of the noise reduction commensurate with the reduction in prop cavitation? I’ve used them on my ship for noise reduction and prop masking reasons in the hopes that ship borne noise reduction would enhance the effectiveness of nixie decoys.

_________________
My Avatar is
French Vice-admiral Louis-René-Madeleine Le Vassor de La Touche, comte de Tréville
The original spelling of my last name is: LaTouche.


Top
[Profile] [Quote]
Display: Sort by: Direction:
[Post Reply]  Page 4 of 8  [ 75 posts ]  Return to “Beginners Only” | Go to page « 1 2 3 4 5 68 »

Jump to: 

Who is online

Users browsing this forum: No registered users and 24 guests


The team | Delete all board cookies | All times are UTC


Powered by phpBB® Forum Software © phpBB Limited
[ GZIP: Off ]