Rimutaka Incline Railway Heritage Trust the Maymorn site to the original railway formation. The trust proposes to progressively reinstate and operate the railway between Maymorn and Featherston in four stages, including: Rimutaka Incline Railway Heritage Trust The Rimutaka Incline Railway Heritage Trust is a non-profit, charitable trust in New Zealand that was established in 2003 with the objective of reinstating an operating heritage railway over the Rimutaka Ranges using the original route of the Wairarapa Line between Maymorn and Featherston, including the world-famous Rimutaka Incline. The trust was formed by a steering committee that had earlier been established to investigate the proposal, and was composed
Otira Tunnel tunnel in the world and the longest in the British Empire. The Midland Railway Company investigated options to a long tunnel; but a line over the pass with gradients of 1 in 50 on both sides was not practical. Other options for a line over the pass were a cable-hauled system or a line of 1 in 15 gradient using either the Fell system or a rack railway using the Abt system (or even a S-shaped tunnel under Mount Rolleston). However the government did not favour the Fell system as used on the Rimutaka Incline which was expensive to operate.