Fort Taiaroa
Underneath the peace of the nature reserve lie the tunnels of Fort Taiaroa, established over 100 years ago to counter the threat of invasion from Tsarist Russia. The Observation Post overlooks part of the albatross colony and the Fort is now a museum. Today, visitors to Taiaroa Head are very fortunate to be able to view the Armstrong Disappearing Gun which now has worldwide recognition as the only one still in working condition, in its original gun pit.
Inspect at first hand the great 1886 six inch calibre hydraulic disappearing gun - imagine, it's complete in every detail, sitting in its gun pit in full working order - just waiting for the word to fire! Stroll through the underground tunnels and view the deep-down magazines. Check out the detailed models which show how the gun worked. Inspect the view from the fully equipped Battery Observation Post with its original (1886) depression range finder.
For more information,
download the Fort Taiaroa brochure.
Armstrong Disappearing Gun 1/10 scale working model

Check out our animation by clicking on the start arrow in the green panel above right! You'll see a stop-frame movie of our Armstrong Disappearing Gun 1/10 scale working model, which can be seen and operated by visitors to the Royal Albatross Centre. Or, take the Unique Taiaroa Tour, and see the real thing!
This six inch gun, the first successful breechloader, is mounted on a hydro-pneumatic carriage, which represented the latest in technology in 1886. Sited in an underground circular gun pit, it was aimed while below ground, then raised, fired and returned back into the pit by the recoil for reloading. The gun was manufactured by W G Armstrong & Co at Elswick, near Newcastle on Tyne, England, and was tested in its present gun site in June 1889.
Armaments
Six gun batteries were installed between 1885 and 1905. The batteries were equipped with eight guns, including three 64-Pounder Rifled Muzzle Loaders with a range of 3,500 yards, one 7", seven-ton RML with a range of 4,000 yards, and the 6" Armstrong Disappearing Gun with a range of 8,800 yards. To combat fast enemy torpedo boats, there was one 6-pounder and two 12-pounder quick firing guns. These gun emplacements were concealed with earth parapets, as earlier gun emplacements constructed overseas in the classical stone fort style had proved to be vulnerable. The stone forts were easily visible and with advances in optics the enemy gun layers could get an accurate range by focusing on the sharp outlines of the structure. Forts of stone and masonry construction proved to be more dangerous under bombardment than the new system, as incoming shells penetrated the soft earthen material and caused much less injury when exploding.