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From 1920 until 1931, the service was maintained by Maori and Wahine with Mararoa acting as relief ship.

Rangatira, a new turbo-electric vessel of 6,152grt built by Vickers Armstrong, Barrow-on-Furness, was launched on 16 April 1931 and sailed for New Zealand via Panama on 8 September 1931.

Rotomahana Photo: From Nick Tolerton's "Below The Timeball" In 1913, the Company built another fast steamer for the service, the Wahine of 4,436grt.

With a service speed of 20 knots she entered service on 19 July 1913, at which time Maori was withdrawn for a thorough overhaul.

Hinemoa arrived at Wellington on 26 January 1947 after a voyage made via Suez, Colombo and Fremantle.