Tapi

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john sefton
Posts: 1816
Joined: Sun Mar 22, 2009 1:59 pm

Tapi

Post by john sefton » Sun Dec 06, 2009 7:51 pm

Tapi. Frigate of the U.S. type P.F.103. Built by the American S.B.Co. at Toledo, Ohio and commissioned on 1st November 1971.
It has a loaded displacement of 1,135 tons on dimensions of 275ft x 33ft x 10ft.
A crew complement of 16 officers and 134 ratings.
A twin screw vessel, it is driven by two sets of Fairbanks-Morse 2str. diesel engines of 6,000 bhp for a speed of 20 knots.
Armament includes two 3in. guns, two 40mm guns, one hedgehog anti-submarine unit and two triple sets of anti-sub¬marine torpedo tubes.
Log Book April 1987.
Thailand 1979 3b SG1003.

Arturo
Posts: 723
Joined: Mon Feb 13, 2012 8:11 pm

Re: Tapi

Post by Arturo » Fri Mar 14, 2014 7:19 pm

This Patrol Frigate, Tapi, of the U.S. “PF-103” class is similar to the Iranian “Bayandor” class. She was laid down 01 Apr 1970 by the American S.B.Co., Toledo, Ohio. Launched 17 Oct 1970, and commissioned 19 Nov 1971. She was named after the river Tapi, the longest river in southern Thailand.

She is known as Tapi class corvette in Royal Thai Navy. Her sister ship is Khirirat. Both ships remain in service.

As built, single 3 inch/50 calibre Mk 34 automatic anti-aircraft guns were mounted fore and aft, each capable of firing 6.8 kg (15 lb) shells to a range of 13,400 metres (14,600 yd) at a rate of 45 rounds per minute, backed up by a twin Bofors 40mm/L60 mount. Two triple Mark 32 torpedo tubes for anti-submarine torpedoes and a Hedgehog anti-submarine mortar comprised the ships' anti-submarine armament. AN/SPS-6 air-search radar and SQS-17 sonar comprised the ships' sensor suite.

Tapi and sister ship Khirirat were modernised during the 1980s, with the US 3-inch guns being replaced by a rapid fire OTO Melara 76 mm gun forward, and a Bofors 40mm/70 gun aft, with two single 20 mm cannon replaced the existing twin Bofors mount. The obsolete Hedgehog was removed, and the ships were fitted with new radar and sonar systems.

As of 2014, she was used for patrolling Thailand's Exclusive economic zone.

Picture 1; Iranian Bayandor Class Ship (More similar to the stamp)

Picture 2; Tapi after modification. (You can see hull number changed as 431)

Thailand, 1979.

Source: Wikipedia
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