US Navy Battleships

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mescal
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US Navy Battleships

#1

Post by mescal » 02 Mar 2009, 11:25

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Brown : withdrawn from active service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_1.jpg (81.17 KiB) Viewed 1137 times
US_BB_2.jpg
US_BB_2.jpg (78.93 KiB) Viewed 1138 times

Please let me know of any mistake you could identify here.
Olivier

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mescal
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Re: US Navy Battleships

#2

Post by mescal » 04 Mar 2009, 18:43

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
US_BB_nb_1.jpg (73.12 KiB) Viewed 1070 times
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).
Olivier


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Re: US Navy Battleships

#3

Post by Cantankerous » 07 Jun 2023, 02:47

mescal wrote:
04 Mar 2009, 18:43
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).
The four classes of Royal Navy battleships used in World War II were the Queen Elizabeth-, Revenge-, Nelson-, and King George V-class battleships. Of these, the Queen Elizabeth- and Revenge-class battleships were built in the 1910s, while the Nelson-class battleships were constructed in the 1920s. Of these, the Nelson-class battleships were only available in the Atlantic Theater, while the Revenge-class battleship were mostly available in the Atlantic and only available in the Pacific from late 1941 to early 1942, and the King George V-class battleships were available in the Atlantic and Pacific in 1941-1943 and solely available in the Pacific in 1945.

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Re: US Navy Battleships

#4

Post by OpanaPointer » 07 Jun 2023, 03:30

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Re: US Navy Battleships

#5

Post by EwenS » 07 Jun 2023, 06:34

Cantankerous wrote:
07 Jun 2023, 02:47
mescal wrote:
04 Mar 2009, 18:43
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).
The four classes of Royal Navy battleships used in World War II were the Queen Elizabeth-, Revenge-, Nelson-, and King George V-class battleships. Of these, the Queen Elizabeth- and Revenge-class battleships were built in the 1910s, while the Nelson-class battleships were constructed in the 1920s. Of these, the Nelson-class battleships were only available in the Atlantic Theater, while the Revenge-class battleship were mostly available in the Atlantic and only available in the Pacific from late 1941 to early 1942, and the King George V-class battleships were available in the Atlantic and Pacific in 1941-1943 and solely available in the Pacific in 1945.
You will find full ww2 histories major RN warships here.
https://www.naval-history.net/xGM-aContents.htm

Some broad brush corrections to the above. You will find the detail in the link.

Nelson & Rodney spent time in Med including most of 1943. Nelson finished her war in the Indian Ocean.

Until late 1941 The R class spent their time largely in the Atlantic before moving to the Indian Ocean for 1942 & 1943. Beyond that only Ramilles remained in commission for any length of time back in home waters. Royal Sovereign was loaned to the USSR in 1944.

Prinde of Wales never reached the Pacific, being sunk in the South China Sea. King George V and Howe spent nearly half of1943 in the Med. Due to the refit schedule Duke of York and Anson only arrived in Australia in July 1945 and were too late to see combat there.

And of course you have omitted the 3 battleftuisers, Renown, Repulse and Hood.

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