Shokaku class CVL

[tom!]

Hi.

Another topic I´m working at at the moment:

There was an improved Hosho-Class design made in 1922/23 (iirc) designated Shokaku-Class. It seems there are no original drawings available but data. Maybe I´m too noob but I couldn´t find them in the Hiraga-Archive. Can someone help me out?

Are there any what-if drawings/artist impressions?

Yours

tom!

[ijnfleetadmiral]

Here's a hypothetical drawing on how she might've looked:

[fontessa]

There are many things I don't know.
Please let me know if you can.
What is improved Hosho-Class CVL?
Hosho has been making refurbishment such as removing island in 1924. What is the relationship with this?
What is Shokaku-class CVL?

fontessa

[ijnfleetadmiral]

There was to have been a second Hosho-class carrier with the name of Shokaku. She was canceled before ever being laid down; obviously there would’ve been improvements in her design from that if Hosho, and the OP was wondering if there were any drawings as to how she might’ve looked. I posed a hypothetical version of her I found on DeviantArt.

[Eugen Pinak]

There are many things I don't know.
Please let me know if you can.
What is improved Hosho-Class CVL?
Hosho has been making refurbishment such as removing island in 1924. What is the relationship with this?
What is Shokaku-class CVL?

fontessa

There were two carriers included in the 8-8 plan: https://ja.wikipedia.org/wiki/%E5%85%AB ... A%E6%A1%88
_Apparently_ they were enlarged and improved versions of "Hosho".
Of course, taking into account development of aircraft carriers in Japan, there is little doubt, that if those ships were actually built, they'd looked different from "Hosho".

[tom!]

Hi.

What I´ve learned so far from my info requests:

Shokaku-Class CVL was an improved and enlarged version of CVL Hosho. There were two proposals, one with a 38.000 HP steam-turbine engine set (12 mixed fired boilers) for 25 kn maximum speed and the second (a little bit larger) with a 80.000 HP steam-turbine engine set (4 mixed fired and 8 oil fired boilers) for 30 kn maximum speed. Armament should be increased by two Type Taisho 3 14 cm guns on the rear and the 8 cm dp-guns were to be replaced by 12 cm dp-guns. in addition the ship sides should consist of 50 mm armor plates.

Size was about 163 m length/19,8 m width at waterline, 27 m maximum width and 6,15 m draught for version 1 and 177 m /20,1 m/27 m/6 m for version 2. Estimated range at 14 kn was 9000 nm/8000 nm.

The project was cancelled in an early phase due to the upcomming restictions on naval tonnage. It would be interesting to know if there was any influence on the Ryujo- and G-5-designs...

Yours

tom!

[fontessa]

Thanks everyone.
You provided me valuable information.

I found some related events.
They were:
Ship name Shokaku given: 17 February 1921
Added Shokaku in the aircraft carrier column in the ship classification grade table 艦艇類別等級表: 3 March 1921
Radio station abbreviation code "JWS" given: 17 March 1921
Notification of construction schedule (November, 1922) and shipyard (Asano Shipyard, same as Hosho) to British Embassy Military Attaché: 20 May 1921
Cancellation of construction of Shokaku / Decided remodel of Akagi and Amagi to aircraft carriers: 20 August 1923
Heavy damage to Amagi at Yokosuka Naval Yard due to the Great Kanto Earthquake: 23 September 1923
In Ship classification grade table, Deleted Kaga in the battleship column / Deleted Akagi in the battle cruiser column: 19 November 1923
In Ship classification grade table, Deleted Shokaku / Added Kaga and Akagi in the aircraft carriers column: 19 November 1923

fontessa

[tom!]

Hi.

Nice find.

Additional infos are always welcome.

Yours

tom!