Vilnius Union, H2/1927

[The Rock Doctor]

Eleven IC underway, one BP built.

Finished 1925 land units yay me, and developed single mountings for several guns still being researched.

Laid down a new CL, and otherwise kind of continued the same DD/SS/small fry building as it's been for a while.  No new capital ship for 1927, as it turns out, the budget just wasn't there.

Major completions are the monitor Zugspitze and carrier Golab, along with DD/SS/small fry.

AC Jager scrapped.

Drydocks finished in North America and Africa, and four new coastal defence units there as well

[The Rock Doctor]

Since we're comparing:

10 Dreadnoughts:  270,000 t
2 Pre-Dreadnoughts:  30,000 t
5 Monitors:  42,000 t
10 Armored Cruisers:  240,000 t
7 Aviation Ships:  28,000 t
36 Light/Protected Cruisers:  168,000 t
3 Korsarz:  12,000 t
139 Torpedo-Boats:  154,000 t
136 Decent-sized escorts (>200 t):  69,000 t
270 MTB:  11,000 t
75 RGB:  13,000 t
Submarines:  74 (59,000 t)

[Kaiser Kirk]

I presume your 'Armored Cruisers' include your big battlecruisers,
Parthia lacks them entirely, but the Byzantines have a couple....which Parthia
slates the two fast battleships to counter. 
So that's part of the Hulls/Tonnage you were questioning.

Different countries terminology is fun.
Jefgte has a category for Torpedo Boats and Torpedo Gun Boats,
but also destroyers,

While I have torpedo boats...they are light torpedo attack.
while my destroyers have both torpedoes and guns.
Fleet+ destroyers have range and ASW/AA to serve with the fleet.

[The Rock Doctor]

The ACs do include the four big battlecruisers, which inflates the tonnage figure.

[The Rock Doctor]

On an unrelated note, I have a small goof in that I've put the 150mm/50 cal research in the ">200mm" section rather than the "<200mm" section of gun research. 

Since I've now fully paid for the gun but in half the time it should've taken, I'll just let it sit on the shelf and not introduce it until 1/29 as if I'd done it correctly.  Easier than revising two spreadsheets.

[The Rock Doctor]

Did some stat crunching against some historical pre-WW2 tallies.

The big six navies are cited as having 80 capital ships, 193 cruisers, and 538 destroyers in service, or a ratio of 1  : 2.4 : 6.7

Per above - counting two small carriers and four armored cruisers as capital ships, ignoring PD and monitors, and counting the other six AC as heavy cruisers - I have 16, 42 and 139, for a ratio of 1 : 2.6 : 8.7.

Which either suggests I'm building too many destroyers or the historical navies didn't build enough destroyers.

[Kaiser Kirk]

Historically destroyers cost a lot more, both to build and to keep in service, and I believe tended to have a shorter service life..I would speculate because they were more stressed - lighter scantlings, no redundancies, higher working pressures, lighter machinery and engineering tolerances.

So an all DD or particularly all SS fleet would have been extremely expensive.

Then toss in that it's in some ways easier to get a Government to fund a big expensive ship that you need to plan years in advance, while a DD can be slapped down and built much faster.  So while the need for more DDs was seen, it was not as pressing.