. The Malaysian ships are also equipped with Thomson Sintra TSM 2022 sonar, Thomson-CSF radar, and two PAP-104 remote-operated submersibles, and are longer than the Italian vessels they were based on. Instead of the 20 mm Oerlikon, the ships are armed with a single Bofors 40 mm L/70 gun. The standard crew complement is 42, 5 of whom are officers. In 2008, Mahamiru and Ledang were modernised by Thales as part of the Royal Malaysian Navy's Service Life Extension Program. The TSM 2022 sonars were upgraded to the Mark III version, and the ships were reconditioned to meet a minimum of ten more years active service. Nigerian Lerici In the late 1980s, the Nigerian Navy acquired two Lerici-class ships. Ohue (M 371) was ordered in April 1983, laid down on 23 July 1984, launched on 22 November 1985, and commissioned on 28 May 1987. Marabai (M 372) was laid down on 11 March 1985, launched on 6 June 1986, and commissioned on 25 February 1988. The Nigerian Lericis are based on the Mahamiru class, but use the Pluto submersible, a Racal Decca 1226 radar, and are slightly slower with a maximum speed of . The Nigerian ships are armed with two 30 mm cannons, and have a crew complement of 50, including 5 officers. Because of a lack of funding and maintenance, Ohue and Marabai were among several ships of the Nigerian Navy that were non-operational by 1996. However, as at 2013, both of these vessels are currently undergoing refurbishment prior to rejoining the Nigerian Naval fleet. Osprey class In August 1986, following the cancellation of a 17-strong mine warfare ship class after the prototype failed shock testing, the United States Navy placed an order for a mine warfare ship based on the Lerici class. In order to keep construction of the twelve ships, referred to as the Osprey class, under the control of Intermarine, the company established Intermarine USA by acquiring the Sayler Marine Corporation. Initially, the twelve ships were to be built by Intermarine USA in Savannah, Georgia, but in October 1989, construction for four ships was contracted out to Avondale Industries. The ships were launched between March 1991 and June 1997, and were commissioned between November 1993 and December 1998. The Osprey-class ships are larger than the other Lerici designs: they displace 918 tons fully loaded, are long, wide, and with a draught of . The ships