Titus Class (Octavia)

Titus class, Octavia Minelayer/ Sweeper laid down 1905

            398 t light; 409 t standard; 469 t normal; 516 t full load

            (50,15 m / 48,77 m) x 7,92 m  x (2,44 / 2,63 m)

  1 - 3,00" / 76,2 mm 40,0 cal gun - 12,94lbs / 5,87kg shells, 200 per gun

              Quick firing gun in deck mount, 1905 Model

              1 x Single mount on centreline, forward deck forward

  4 - 0,30" / 7,5 mm 30,0 cal guns - 0,01lbs / 0,01kg shells, 3.000 per gun

              Machine guns in deck mounts, 1905 Model

              4 x Single mounts on sides, evenly spread

  Weight of broadside 13 lbs / 6 kg

            in Above water - Stern racks/rails

## Armour:

  - Belts:            Width (max)       Length (avg)                     Height (avg)

            Main:  1,00" / 25 mm      50,00 ft / 15,24 m          14,00 ft / 4,27 m

            Ends:  Unarmoured

              Main Belt covers 48 % of normal length

  - Gun armour:

Face (max)         Other gunhouse (avg)      Barbette/hoist (max)

            Main:  1,00" / 25 mm      -                                     -

            2nd:    0,50" / 13 mm      -                                     -

###   - Armoured deck - single deck:

            For and Aft decks: 1,00" / 25 mm

## Machinery:

            Oil fired boilers, complex reciprocating steam engines,

            Direct drive, 1 shaft, 457 ihp / 341 Kw = 12,00 kts

            Range 4.000nm at 10,00 kts

            Bunker at max displacement = 107 tons

## Cost:

            £0,023 million / $0,092 million

### Distribution of weights at normal displacement:

            Armament: 37 tons, 8,0 %

              - Guns: 2 tons, 0,5 %

              - Weapons: 35 tons, 7,5 %

            Armour: 87 tons, 18,6 %

              - Belts: 38 tons, 8,0 %

              - Armament: 8 tons, 1,7 %

              - Armour Deck: 40 tons, 8,6 %

              - Conning Tower: 1 tons, 0,3 %

            Machinery: 60 tons, 12,8 %

            Hull, fittings & equipment: 194 tons, 41,3 %

            Fuel, ammunition & stores: 70 tons, 15,0 %

            Miscellaneous weights: 20 tons, 4,3 %

              - On freeboard deck: 20 tons

### Overall survivability and seakeeping ability:

            Survivability (Non-critical penetrating hits needed to sink ship):

              1.858 lbs / 843 Kg = 137,6 x 3,0 " / 76 mm shells or 1,3 torpedoes

            Stability (Unstable if below 1.00): 1,17

            Metacentric height 0,9 ft / 0,3 m

            Roll period: 11,6 seconds

            Steadiness         - As gun platform (Average = 50 %): 100 %

                                          - Recoil effect (Restricted arc if above 1.00): 0,05

            Seaboat quality  (Average = 1.00): 2,00

### Hull form characteristics:

            Hull has a flush deck,

              a normal bow and a round stern

            Block coefficient (normal/deep): 0,493 / 0,503

            Length to Beam Ratio: 6,15 : 1

            'Natural speed' for length: 12,65 kts

            Power going to wave formation at top speed: 43 %

            Trim (Max stability = 0, Max steadiness = 100): 50

            Bow angle (Positive = bow angles forward): 18,00 degrees

            Stern overhang: 0,00 ft / 0,00 m

            Freeboard (% = length of deck as a percentage of waterline length):

                                                          Fore end,           Aft end

              - Forecastle:   20,00 %,  14,00 ft / 4,27 m,  14,00 ft / 4,27 m

              - Forward deck: 30,00 %,  14,00 ft / 4,27 m,  14,00 ft / 4,27 m

              - Aft deck:      35,00 %,  14,00 ft / 4,27 m,  14,00 ft / 4,27 m

              - Quarter deck:  15,00 %,  14,00 ft / 4,27 m,  14,00 ft / 4,27 m

              - Average freeboard:                    14,00 ft / 4,27 m

### Ship space, strength and comments:

            Space  - Hull below water (magazines/engines, low = better): 44,5 %

                          - Above water (accommodation/working, high = better): 143,9 %

            Waterplane Area: 2.644 Square feet or 246 Square metres

            Displacement factor (Displacement / loading): 201 %

            Structure weight / hull surface area: 31 lbs/sq ft or 151 Kg/sq metre

            Hull strength (Relative):

                          - Cross-sectional: 0,75

                          - Longitudinal: 12,87

                          - Overall: 1,00

* Excellent machinery, storage, compartmentation space
* Excellent 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