US Navy Battleships

Discussions on all aspects of the United States of America during the Inter-War era and Second World War. Hosted by Carl Schwamberger.
User avatar
mescal
Member
Posts: 1415
Joined: 30 Mar 2008 14:46
Location: France, EUR

US Navy Battleships

Post by mescal » 02 Mar 2009 10:25

Hello,

Below is the same kind of availability diagram than those I did earlier for the cruisers.
Alaska & Guam are in this chart despite not being BBs - but to be rigorous I would have had to do one separate sheet for only two ships ....

The color code is still the same :
Green : available to Pacific Fleet
Light Green : available to Atlantic Fleet
Red : Sunk
Orange : Combat damage
Yellow : Noncombat damage
Light Blue : Shakedown & Training
Purple : under repair/refit/overhaul ... = unavailable
Brown : withdrawn from active service
Grey : building
US_BB_1.jpg
US_BB_2.jpg

Please let me know of any mistake you could identify here.
You do not have the required permissions to view the files attached to this post.
Olivier

User avatar
mescal
Member
Posts: 1415
Joined: 30 Mar 2008 14:46
Location: France, EUR

Re: US Navy Battleships

Post by mescal » 04 Mar 2009 17:43

Here is a more synthetic presentation of the unavailability of US BBs (and CBs).

Note that the "hits taken" includes accidents (collisions), but only those that led to at least 1 month unavailability are seen here.
The "total" column does not count the month of building and the months after the sinking of a ship.
The percent of time unavailable for Arizona & Oklahoma is not computed as it does not make sense (it's either 0% or 100%, depending on how you compute it).
US_BB_nb_1.jpg
The 22% value for the overall percentage of unavailability is roughly equivalent to the one computed for RN (24%).
However, there is a distinct pattern for USN : all of the recent BBs are below this value. California and West Virginia account for 27% of the overall unavailability (and they represent less than 4% of the grand total of months of active service by the US BBs).

As for the RN, I will try to make a more detailed analysis (by year & ship class or type (WW1-era vs WW2-era BBs).
You do not have the required permissions to view the files attached to this post.
Olivier

Return to “USA 1919-1945”