NAVYPEDIA

Ships

No	Name	Yard No	Builder	Laid down	Launched	Comm	Fate
	Katahdin		Bath Iron Wks	7.1891	4.2.1893	20.2.1896	stricken 7.1909

Technical data

Displacement normal, t	2155
Displacement full, t	2383
Length, m	76.4 wl
Breadth, m	13.2
Draught, m	4.60 mean
No of shafts	2
Machinery	2 HTE, 3 cylindrical boilers
Power, h. p.	5068
Max speed, kts	16
Fuel, t	coal 202
Endurance, nm(kts)
Armour, mm	Harvey and NS; side: 152 - 76, uptakes: 152, deck: 152 - 51, CT: 457
Armament	4 x 1 - 57/40-45 Hotchkiss Mk I/II/III
Complement	97

Standard scale images

Project history

Authorized under the Act of 2.3.1889. Intended as a harbour defence ram, she differed from the British Polyphemus to having no torpedo armament.

Ship protection

The 152mm side armour, 76mm at lower edge, was inclined outwards and joined the turtle deck which was 152mm at the edge, then 140mm and 64-51mm at the centre line. The knuckle was backed by 1143mm of timber, and the hull normally 1.5-1.8m maximum above water, was lowered 0.15m for action by water ballast.

Modernizations

None.

Naval service

Katahdin was only commissioned up to April 1897 and again from March to October 1898. Stricken 9.7.1909, she was used as 'Ballistic Experimental Target A' in important firing trials which determined the need for 343mm armour in future battleship designs.