HNLMS Tjerk Hiddes (F804)

In the early 1960s, the Royal Netherlands Navy had an urgent requirement to replace its Van Amstel-class frigates, obsolete ex-American escorts built during the Second World War.

To meet this requirement, it chose to build a modified version of the British Leander-class frigate as its Van Speijk class, using broadly the same armament as the original design, but where possible, substituting Dutch electronics and radars.

[4] The 4.5-inch gun was replaced by a single OTO Melara 76 mm and launchers for up to eight Harpoon anti-ship missiles fitted (although only two were normally carried).

The hangar and flight deck were enlarged, allowing a Westland Lynx helicopter to be carried, while the Limbo mortar was removed, with a pair of triple Mk 32 torpedo launchers providing close-in anti-submarine armament.

[4] Tjerk Hiddes was laid down at the Amsterdam shipyard of Nederlandsche Dok en Scheepsbouw Maatschappij on 1 June 1964 and was launched on 17 December 1965.

[5][9] In 1969 Tjerk Hiddes participated in the NATO exercises Razor Sharp and Peace Keeper and also served with STANAVFORLANT.

[1] The ship was transferred to Indonesia on 31 October 1986 and renamed KRI Ahmad Yani on joining the Indonesian Navy, with the pennant number 351.

Construction is underway at Nederlandsche Dok en Scheepsbouw Maatschappij in Amsterdam in 1963.
The modernized HNLMS Tjerk Hiddes in the 1980s.
KRI Ahmad Yani in 2007