Re: [GZG] Battlecruisers

[Ryan Gill <rmgill@xxxxxxxxxxxxxx>]

At 11:39 PM -0700 12/23/06, Richard Bell wrote:
> On 12/23/06, Ryan Gill <rmgill@xxxxxxxxxxxxxx> wrote:
> > At 9:40 AM -0700 12/23/06, Richard Bell wrote:
>
>
> >  >They are usually ships between a heavy cruiser and a battleship.  Only
> > > one navy (the USN) ever built ships like that, and they were called
> > > "Large Cruisers" (the Alaska class).
> >
> > Germany and Britain made lots.
>
> Germany built one, the Blucher, and may have built another two later
> on, depending on how you argue (the S & G of WWII).

Von der Tan battlecruiser

Displ: 19,064 tons normal; 21,082 tons full load
Dim: 563 x 87 x 26.6 feet
Prop: Steam turbines, 18 boilers, 4 shafts, 43,600 hp, 24.75 knots
Crew: 923 (1174 wartime)
Arm: 4 dual 11/45, 10 single 5.9/45, 16 single 3.5/45, 4 17/7 inch TT (sub)
Armor: 3.1-9.8 inch belt, 1.2-9.1 inch barbettes, 9.1 inch turrets,
       9.8 inch CT

Moltke class battlecruisers
Moltke and Goeben

Displ: 22,616 tons normal; 25,300 tons full load
Dim: 612 x 97 x 27 feet
Prop: Steam turbines, 24 boilers, 4 shafts, 52,000 shp, 25.5 knots
Crew: 1053 (1355 wartime)
Arm: 5 dual 11/50, 12 5.9/45, 12 3.5 inch, 4 19.7 inch TT (sub)
Armor: 3.9-10.6 inch belt, 1.2-9.1 inch barbettes, 9.1 inch turrets,
       13.8 inch CT

Seydlitz battlecruiser

Displ: 24,594 tons normal; 28,100 tons full load
Dim: 658 x 93.5 x 27 feet
Prop: Steam turbines, 27 boilers, 4 shafts, 63,000 hp, 26.5 knots
Crew: 1068
Arm: 5 dual 11/50, 12 single 5.9/45, 12 single 3.5/45, 4 19.7 inch TT (sub)
Armor: 3.9-11.8 inch belt, 1.2-9.1 inch barbettes, 9.8 inch turrets,
       13.8 inch CT
        Enlarged and improved Moltke class.

Derfflinger class battlecruisers

Derfflinger and Lutzow

Displ: 26,180 tons normal; 30,707 tons full load
Dim: 690 x 95 x 27 feet
Prop: Steam turbines, 18 boilers, 4 shafts, 63,000 hp, 26.5 knots
Crew: 1112 (1391 wartime)
Arm: 4 dual 12/50, 12 single 5.9/45, 4 single 3.5/45, 4 19.7 inch TT (sub)
     (Lutzow: 2 additional 5.9 inch, no 3.5 inch, 23.6 inch TT (sub))
Armor: 3.9-11.8 inch belt, 1.2-10.2 inch barbettes, 10.6 inch turrets,
       13.8 inch CT

Hindenburg battlecruiser

Displ: 26,513 tons normal; 31,000 tons full load
Dim: 698 x 95 x 27 feet
Prop: Steam turbines, 18 boilers, 4 shafts, 72.000 hp, 27.5 knots
Crew: 1182
Arm: 4 dual 12/50, 14 single 5.9/45, 4 3.5 inch AA, 4 23.6 inch TT (sub)
Armor: 3.9-11.8 inch belt, 1.2-10.2 inch barbettes, 10.6 inch turrets,
       13.8 inch CT
        Slightly modified Derfflinger class design.

Started but not finished were the Mackensen class 
battlecruisers and Ersatz Yorck class 
battlecruisers

Displ: 30,500 tons normal; 34,742 tons full load
Dim: 731.5 x 100 x 27.5 feet
Prop: Steam turbines, 32 boilers, 4 shafts, 90,000 hp, 28 knots
Crew: 1186
Arm: 4 dual 13.8/45, 12 single 5.9/45, 8 3.5 inch AA, 5 23.6 inch TT (sub)
Armor: 3.9-11.8 inch belt, 3.9-11.4 inch barbettes, 12.6 inch turrets,
       13.8 inch CT

Displ: 33,000 tons normal; 37,400 tons full load
Dim: 747.5 x 100 x 28.5 feet
Prop: Steam turbines, hydraulic drive, 32 boilers, 4 shafts, 90,000 hp,
      27.25 knots
Crew: 1227
Arm: 4 dual 15/45, 12 single 5.9/45, 8 3.5 (or 4.1) inch AA, 3 23.6
     (or 27.6) inch TT (sub)
Armor: 3.9-11.8 inch belt, 3.5-11.8 inch barbettes, 11.8 inch turrets,
       13.8 inch CT
        Ordered as Mackensen class, changed to modified design with
        15 inch guns 1/1917.


>  Britain may have
> laid down three, the wierd sisters (Glorious, Courageous, and Furious)
> but they were not completed as originally designed.

Invincible, Indomitable, Inflexible, 
Indefatigable, New Zealand, Lion, Princess Royal, 
Queen Mary, Tiger, Renown, Repulse



>  All of the ships
> laid down as battlecruisers were the size of their contemporary
> battleships.


Which exchanged armor for boiler plants. Compare the Orions and the Lions.

Orion class battleships

Displ: 22,200 tons normal; 25,870 tons full load
Dim: 581 x 88 x 25 feet
Prop: Steam turbines, 18 boilers, 4 shafts, 27,000 hp, 21 knots
Crew: 752
Arm: 5 dual 13.5/45, 16 single 4/50, 3 21 inch TT sub
Armor: 8-12 inch belt, 1-4 inch decks, 3-10 inch barbettes, 11 inch
       turrets, 11 inch CT

Lion class battlecruisers

Displ: 26,270 tons normal; 29,680 tons full load
Dim: 700 x 88.5 x 27.5 feet
Prop: Steam turbines, 42 boilers, 4 shafts, 70,000 hp, 27 knots
Crew: 997
Arm: 4 dual 13.5/45, 16 single 4/50, 2 21 inch TT (sub)
Armor: 4-9 inch belt, 1-2.5 inch decks, 3-9 inch barbettes, 9 inch turrets,
       10 inch CT

Bow's lengthened for the speed factor and a touch 
more beam, but otherwise similar in size. The big 
difference is LOTs less armor for boiler plant.


> The USN contemplated a class of five that were squarely
> between the size of contemporary CA's and BB's, and even finished two
> of them.

Which I think in US doctrine were more Large Cruisers.
--
--
Ryan Gill              rmgill@xxxxxxxxxxxxxxxxxx
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