Castle-class patrol vessel vs Pashe-class speedboat

FORCETALLY

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APatrol & mine warfare vessels

Castle-class patrol vessel

Offshore patrol vessel

BPatrol & mine warfare vessels

Pashe-class speedboat

Fast patrol boat

First system

Second system

At a glance

Side by side

Length comparisonOne shared metre scale

Castle-class patrol vesseloverall

75 m

Length source ↗

Pashe-class speedboatLength

19.5 m

Length source ↗

Lengths retain their source configuration and measurement scope.

Castle-class patrol vessellarger figure on 3 of 4

Beam+174%
Draught+281%
Complement+400%

Pashe-class speedboatlarger figure on 1 of 4

Speed+81%

Counts only measures both sources give with the same scope. A larger figure is not a better system.

Measured figures

Head to head

12 of 22 rows sourced on both sides

75moverall

19.5m

Length

All recorded figures & sources

75 m

overall

Single source

246 ft (75 m) (overall)^[source]

19.5 m

Length

Single source

Configuration

Details

Castle-class patrol vessel and Pashe-class speedboat configuration
Specification	Castle-class patrol vessel	Pashe-class speedboat
Displacement	1,570 tons full load^[source]	30 tons full load^[source]
Power	2 shafts, 2 Paxman diesels, 2,820 hp (2,100 kW)^[source]	Diesel^[source] 2 × MWM TBD 234 V12 engines, 1,646 horsepower (1.227 MW) 2 × shafts^[source]
Builders	Hall, Russell & Company^[source]	Marine Industries Organization^[source]

Operators	Royal Navy (retired) Bangladesh Navy^[source]	Navy of the Islamic Revolutionary Guard Corps^[source]

Preceded by	Island class^[source]	—

Succeeded by	River class^[source]	—

Built	1979–1981^[source]	—

In commission	1982–Present^[source]	—

Planned	6^[source]	—

Completed	2^[source]	—

Type	Offshore patrol vessel^[source]	Fast patrol boat^[source]

Sensors & processing systems	Type 1006 radar Simrad RU sidescan sonar (Bangladesh Navy installed Type 360 Radar as the main radar)^[source]	Surface search radar , I-band^[source]

Armament	Royal Navy: 1 × Bofors 40 mm gun Mark III, replaced by 1 × 30 mm gun Bangladesh Navy: 1 x 76 mm (3.0 in) main gun 4 × C-704 AShM Small caliber guns or autocannons^[source]	2 × 23mm/80 (twin)^[source]