Patrouilleurs - Escorteurs

[Jefgte]

P1 to P12, France P1 class laid down 1904 (Engine 1900)

Displacement:
   333 t light; 350 t standard; 404 t normal; 448 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (183.73 ft / 183.73 ft) x 21.00 ft x (7.33 / 7.95 ft)
   (56.00 m / 56.00 m) x 6.40 m  x (2.24 / 2.42 m)

Armament:
      2 - 3.94" / 100.0 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 150 per gun
     Quick firing guns in deck mounts, 1904 Model
     2 x Single mounts on centreline ends, evenly spread
      2 - 2.95" / 75.0 mm 45.0 cal guns - 12.98lbs / 5.89kg shells, 220 per gun
     Quick firing guns in deck mounts, 1904 Model
     2 x Single mounts on sides, forward deck aft
      2 - 0.31" / 8.0 mm 76.0 cal guns - 0.02lbs / 0.01kg shells, 5 000 per gun
     Machine guns in deck mounts, 1904 Model
     2 x Single mounts on sides, forward deck centre
      Weight of broadside 88 lbs / 40 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.39" / 10 mm         -               -
   2nd:   0.39" / 10 mm         -               -

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 1 shaft, 930 ihp / 694 Kw = 15.08 kts
   Range 2 800nm at 10.00 kts
   Bunker at max displacement = 98 tons (90% coal)

Complement:
   44 - 58

Cost:
   £0.036 million / $0.145 million

Distribution of weights at normal displacement:
   Armament: 16 tons, 4.0 %
      - Guns: 16 tons, 4.0 %
   Armour: 4 tons, 0.9 %
      - Armament: 4 tons, 0.9 %
   Machinery: 144 tons, 35.6 %
   Hull, fittings & equipment: 132 tons, 32.6 %
   Fuel, ammunition & stores: 71 tons, 17.6 %
   Miscellaneous weights: 38 tons, 9.4 %
      - On freeboard deck: 28 tons
      - Above deck: 10 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     336 lbs / 153 Kg = 11.0 x 3.9 " / 100 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.21
   Metacentric height 0.7 ft / 0.2 m
   Roll period: 10.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.41
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.511
   Length to Beam Ratio: 8.75 : 1
   'Natural speed' for length: 13.55 kts
   Power going to wave formation at top speed: 47 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   25.00 %,  11.81 ft / 3.60 m,  9.51 ft / 2.90 m
      - Forward deck:   25.00 %,  9.51 ft / 2.90 m,  7.87 ft / 2.40 m
      - Aft deck:   30.00 %,  7.87 ft / 2.40 m,  7.55 ft / 2.30 m
      - Quarter deck:   20.00 %,  7.55 ft / 2.30 m,  6.89 ft / 2.10 m
      - Average freeboard:      8.54 ft / 2.60 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 126.6 %
      - Above water (accommodation/working, high = better): 86.8 %
   Waterplane Area: 2 471 Square feet or 230 Square metres
   Displacement factor (Displacement / loading): 109 %
   Structure weight / hull surface area: 30 lbs/sq ft or 148 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.89
      - Longitudinal: 2.80
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Misc Weight:
10t for short wireless
4t for 4x450 torpedoes
24t for different works;
Minesweeper - Minelayer
Material
Coal
Troops