NAVYPEDIA

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Aso

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
阿蘇 [Aso] (ex-Баян [Bayan])			F C de la Méditerranée, La Seyne, France // Maizuru K K	12/1898	30.5.1900	4.1903 // 1908	minelayer 1920, stricken 4.1930

Technical data

Displacement normal, t	7725
Displacement full, t	7800
Length, m	137.0
Breadth, m	17.5
Draught, m	6.48
No of shafts	2
Machinery	2 VTE, 26 Belleville boilers
Power, h. p.	16500
Max speed, kts	21
Fuel, t	coal 1100
Endurance, nm(kts)	7000(10)
Armour, mm	Harvey nickel steel - belt: 200 - 100, bulkheads: 200 - 180, upper belt: 60, casemates: 60, deck: 50 - 30, CT: 160
Armament	2 x 1 - 203/42 (rus.), 8 x 1 - 152/45 Armstrong GG, 16 x 1 - 76/40 Armstrong N, 2 x 1 - 6.5/115
Complement	593

Standard scale images

Graphics

Project history

Former Russian Bayan, captured 2.1.1905 at Port Arthur. She was repaired and commissioned in 1908.

Ship protection

Main 200mm belt protected part of ship length between stem and aft turret and had 1.8m height, its thickness decreased to 100mm at lower edge and near ship ends. It was closed by 200-180mm bulkhead at aft end. 60mm upper belt connected with upper deck. 6`` and half of 3`` guns had similar protection. Main deck was 50mm at flat part.

Modernizations 3.

1913: - 2 x 1 - 203/42; + 2 x 1 - 152/50 41-shiki with shields

1920: + capacity for 420 mines.

Naval service

Aso was stricken 1.4.1930, converted to target and sunk on manoeuvres 8.8.1932.