WesWorld

Patrol Boats

Al Sarea
Built by J.S. White & Co., 1936, 20 tons, 55x11.5x3 feet, armament: two Vickers .661in heavy machine guns, two 450bhp Kermath petrol engines, 35 kts, complement 9

1946 - renamed Nile and becomes a tender

Al Sarea (ex-DE22), Raqib (ex-DE27), Qamar (ex-DE30) and El Hoot (ex-DE36)
All ex-RN Defiant class torpedo boats transferred in 1941

Defiant Class, Great Britain Torpedo Boat laid down 1922 (Engine 1941)

Displacement:
589 t light; 608 t standard; 650 t normal; 683 t full load

Dimensions: Length overall / water x beam x draught
254.82 ft / 250.00 ft x 25.00 ft x 9.10 ft (normal load)
77.67 m / 76.20 m x 7.62 m x 2.77 m

Armament:
2 - 4.50" / 114 mm guns in single mounts, 45.00lbs / 20.41kg shells, 1936 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread
4 - 1.57" / 40.0 mm guns (1x4 guns), 2.00lbs / 0.91kg shells, 1922 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
4 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1935 Model
Quick firing guns in deck mounts
on side, all amidships
8 - 0.66" / 16.8 mm guns (4x2 guns), 0.14lbs / 0.06kg shells, 1935 Model
Machine guns in deck mounts
on side ends, evenly spread, 2 raised mounts - superfiring
Weight of broadside 105 lbs / 48 kg
Shells per gun, main battery: 100

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm 0.50" / 13 mm -
2nd: 0.50" / 13 mm - -
3rd: 0.50" / 13 mm - -
4th: 0.50" / 13 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 21,000 shp / 15,666 Kw = 31.51 kts
Range 1,440nm at 16.00 kts
Bunker at max displacement = 75 tons

Complement:
63 - 83

Cost:
£0.207 million / $0.829 million

Distribution of weights at normal displacement:
Armament: 13 tons, 2.0 %
Armour: 7 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 7 tons, 1.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 316 tons, 48.6 %
Hull, fittings & equipment: 233 tons, 35.9 %
Fuel, ammunition & stores: 61 tons, 9.4 %
Miscellaneous weights: 20 tons, 3.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
197 lbs / 89 Kg = 4.3 x 4.5 " / 114 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.26
Metacentric height 0.9 ft / 0.3 m
Roll period: 10.8 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.20
Seaboat quality (Average = 1.00): 1.04

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.400
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 15.81 kts
Power going to wave formation at top speed: 71 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.00 ft / 5.49 m
- Forecastle (40 %): 18.00 ft / 5.49 m (10.00 ft / 3.05 m aft of break)
- Mid (50 %): 10.00 ft / 3.05 m
- Quarterdeck (15 %): 10.00 ft / 3.05 m
- Stern: 8.00 ft / 2.44 m
- Average freeboard: 13.05 ft / 3.98 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 175.4 %
- Above water (accommodation/working, high = better): 116.3 %
Waterplane Area: 3,847 Square feet or 357 Square metres
Displacement factor (Displacement / loading): 52 %
Structure weight / hull surface area: 26 lbs/sq ft or 125 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 4.25
- Overall: 0.62
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate

25% Refit Notes
Replacement of 4in guns with 4.5in single mounts
Removal of triple torpedo tube mount
Fitting of four 37mm QF guns amidships
DC rack added aft with 5x DCs
New twin 0.661in HMG mounts added, two replacing former 20mm guns
New HA/LA director
New boilers and engines
Life extension and refurbishment of fittings

El Kadesseya, El Yarmouk, Badr, Hettein
Commissioned Q1/1946

Denny Motor Sea Gunboat
Designer: Denny & Sons
Length (o/a): 147 feet 8 in (45 meters)
Length (w/l): 140 feet (42.7 meters)
Beam: 22 feet (6.7 meters)
Draft: 8 feet (2.44 meters)
Displacement: 180 tons light, 220 tons standard, 260 tons loaded
Propulsion: Two Paxman marine diesels (1,600hp each) plus Metrovick geared steam turbine, 1 boiler delivering 5965 kW (8,000shp) to two shafts
Range: 1000nm @ 20 knots
Speed: 37 knots maximum; 27 knots in Sea State 4
Crew: 31 men
Armament:
- 1 x 3in gun in HA mounting
- 4 x 40mm/L70 2pdr AA guns in twin mountings
- 2 x 21" torpedoes
- 6 x DCs or mines
Electronics: Type 279 MTB navigation Radio-Location set, Type 130 fixed array Asdic

Commonwealth Class, Great Britain Sloop laid down 1948

Displacement:
1,199 t light; 1,274 t standard; 1,435 t normal; 1,563 t full load

Dimensions: Length overall / water x beam x draught
340.55 ft / 330.00 ft x 40.00 ft x 9.10 ft (normal load)
103.80 m / 100.58 m x 12.19 m x 2.77 m

Armament:
4 - 4.50" / 114 mm guns (2x2 guns), 45.00lbs / 20.41kg shells, 1936 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread
8 - 1.57" / 40.0 mm guns (4x2 guns), 2.00lbs / 0.91kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 196 lbs / 89 kg
Shells per gun, main battery: 400
6 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.50" / 38 mm 1.00" / 25 mm 1.00" / 25 mm
2nd: 0.50" / 13 mm 0.50" / 13 mm -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 15,000 shp / 11,190 Kw = 27.71 kts
Range 5,000nm at 15.00 kts
Bunker at max displacement = 290 tons

Complement:
116 - 151

Cost:
£0.850 million / $3.401 million

Distribution of weights at normal displacement:
Armament: 25 tons, 1.7 %
Armour: 18 tons, 1.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 18 tons, 1.3 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 367 tons, 25.6 %
Hull, fittings & equipment: 560 tons, 39.0 %
Fuel, ammunition & stores: 236 tons, 16.4 %
Miscellaneous weights: 230 tons, 16.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,445 lbs / 655 Kg = 31.7 x 4.5 " / 114 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 1.9 ft / 0.6 m
Roll period: 12.2 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.22
Seaboat quality (Average = 1.00): 1.51

Hull form characteristics:
Hull has raised forecastle, low quarterdeck
and transom stern
Block coefficient: 0.418
Length to Beam Ratio: 8.25 : 1
'Natural speed' for length: 21.31 kts
Power going to wave formation at top speed: 61 %
Trim (Max stability = 0, Max steadiness = 100): 33
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.50 ft / 7.16 m
- Forecastle (22 %): 23.50 ft / 7.16 m (17.00 ft / 5.18 m aft of break)
- Mid (50 %): 17.00 ft / 5.18 m
- Quarterdeck (10 %): 10.00 ft / 3.05 m (17.00 ft / 5.18 m before break)
- Stern: 10.00 ft / 3.05 m
- Average freeboard: 17.73 ft / 5.40 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 115.9 %
- Above water (accommodation/working, high = better): 163.6 %
Waterplane Area: 8,531 Square feet or 793 Square metres
Displacement factor (Displacement / loading): 122 %
Structure weight / hull surface area: 36 lbs/sq ft or 176 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.52
- Longitudinal: 3.06
- Overall: 0.62
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Class Names: El Malek Farouk, Mohammed Ali El Kebir, Ibrahim el Awal, Al Seddiq

Misc Weight includes:
ASDIC Type 148
Depth-Finding ASDIC Type 145
Surface Search Type 970
Target Indication Type 287P
Gunnery Director Mk VI with Type 288
Close Range Blind Fire Director (CRBF) with Type 289
HF/DF Type 292
Passive Radio Intercept Type 293 Series
2x (or 1x) Squid A/S Mortar with 30x projectiles per mortar