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FIGHTING SHIPS OF THE WORLD
SIAM / THAILAND
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TAPI small frigates (1971-1974)


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Tapi 1975

Ships


Name No Yard No Builder Laid down Launched Comp Fate
ตาปี [Tapi] 5, 1992- 431   American SB, Toledo, USA 1.4.1970 17.10.1970 1.11.1971 in service (2019)
คีรีรัฐ [Khirirat] 6, 1992- 432   Norfolk SB, USA 18.2.1972 2.6.1973 10.8.1974 in service (2019)


Technical data


Displacement standard, t

864

Displacement full, t

1143

Length, m

84.0

Breadth, m

10.1

Draught, m

3.05 hull 4.27 sonar

No of shafts

2

Machinery

2 Fairbank-Morse 38D81/8 diesels

Power, h. p.

5300

Max speed, kts

20

Fuel, t

diesel oil 110

Endurance, nm(kts)

2400(18)

Armament

2 x 1 - 76/50 Mk 34, 1 x 2 - 40/60 Mk 1, 2 x 3 - 324 Mk 32 TT (Mk 46), 1 x 24 Hedgehog Mk 2 ASWRL, 1 Mk 9 DCR (7 DC)

Electronic equipment

SPS-6, SPS-53, SPG-34 radars, SQS-17A sonar

Complement

150



Standard scale images


<i>Tapi </i>1975
Tapi 1975
<i>Tapi </i>1990
Tapi 1990


Graphics


<i>Tapi </i>2001
Tapi 2001
<i>Tapi </i>1975
Tapi 1975


Project history

US PF103 class, originally based on the Italian-built Pattimura class for Indonesia. Are sister-ships for Iranian Bayandor class.

Modernizations

1983, Tapi; 1987, Khirirat: - 2 x 1 - 76/50, 1 x 2 - 40/60, 1 x 24 Hedgehog Mk 2 ASWRL, SPG-34 radar, SQS-17A sonar; + 1 x 1 - 76/62 OTO-Melara Compact, 1 x 1 - 40/60 Mk 3, 2 x 1 - 20/90 GAM-B01, 2 x 1 - 12.7/90, WM-25 radar, DSQS-21C sonar

1989, both: + SEWACO CCS

Naval service

No significant events.