Defender-class torpedo boat

Defender
Class overview
Builders	John I. Thornycroft & Company at Chiswick
Operators	Royal Navy
Preceded by	Acheron-class torpedo boat
Succeeded by	HMVS Childers
Built	1883
Building	4
Scrapped	4
General characteristics
Displacement	12 tons
Length	62 ft 10 in (19.15 m)
Beam	7 ft 6 in (2.29 m)
Installed power	173 hp (129 kW)
Propulsion	Two-cylinder inverted compound-expansion steam reciprocating engine 130lb/sq in Locomotive boiler,
Speed	17.5 kn (32.4 km/h)
Complement	7[1]
Armament	One McEvoy Spar torpedo Two 18" Whitehead torpedoes (retrofitted to Defender & Taiaroa) One 2-barrelled Nordenfelt gun[1]

The colonial service Defender-class torpedo boats were designed by Thornycroft & Company for the defence of New Zealand, built at Chiswick in 1883 and shipped to New Zealand. They were quickly obsolete and were left to deteriorate in situ. The remains of Defender are preserved at the Lyttelton Torpedo Boat Museum.