Avalon class (Octavia)

Avalon class, SPQO:Navy Sloop/Aviso laid down 1894

            2.450 t light; 2.541 t standard; 2.720 t normal; 2.864 t full load

            (90,49 m / 88,39 m) x 12,19 m  x (4,88 / 5,07 m)

## Armament:

  2 - 6,00" / 152 mm 40,0 cal guns - 100,00lbs / 45,36kg shells, 120 per gun

              Breech loading guns in deck mounts, 1894 Model

              1 x Single mount on centreline, forward deck forward

              1 x Single mount on centreline, aft deck aft

  6 - 4,70" / 119 mm 40,0 cal guns - 45,00lbs / 20,41kg shells, 150 per gun

              Breech loading guns in deck mounts, 1894 Model

              8 x Single mounts on sides, evenly spread

  4 - 1,85" / 47,0 mm 40,0 cal guns - 3,04lbs / 1,38kg shells, 150 per gun

              Quick firing guns in deck mounts, 1894 Model

              2 x Single mounts on sides, aft deck aft

              2 x Single mounts on sides, forward deck forward

  Weight of broadside 482 lbs / 219 kg

## Armour:

  - Gun armour: Face (max)         Other gunhouse (avg)      Barbette/hoist (max)

            Main:  2,00" / 51 mm      -                                     -

            2nd:    2,00" / 51 mm      -                                     -

            3rd:     1,00" / 25 mm      -                                     -

###   - Protected deck - single deck:

            For and Aft decks: 2,00" / 51 mm

            Forecastle: 1,00" / 25 mm  Quarter deck: 1,20" / 30 mm

## Machinery:

            Coal fired boilers, complex reciprocating steam engines,

            Direct drive, 2 shafts, 5.253 ihp / 3.919 Kw = 18,00 kts

            Range 2.500nm at 10,00 kts

            Bunker at max displacement = 323 tons (100% coal)

## Cost:

            £0,235 million / $0,938 million

### Distribution of weights at normal displacement:

            Armament: 71 tons, 2,6 %

              - Guns: 71 tons, 2,6 %

            Armour: 336 tons, 12,4 %

              - Armament: 60 tons, 2,2 %

              - Armour Deck: 267 tons, 9,8 %

              - Conning Tower: 8 tons, 0,3 %

            Machinery: 906 tons, 33,3 %

            Hull, fittings & equipment: 998 tons, 36,7 %

            Fuel, ammunition & stores: 271 tons, 9,9 %

            Miscellaneous weights: 140 tons, 5,1 %

              - On freeboard deck: 10 tons

              - Above deck: 130 tons

### Overall survivability and seakeeping ability:

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

              2.820 lbs / 1.279 Kg = 26,1 x 6,0 " / 152 mm shells or 0,7 torpedoes

            Stability (Unstable if below 1.00): 1,14

            Metacentric height 1,6 ft / 0,5 m

            Roll period: 13,2 seconds

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

                                          - Recoil effect (Restricted arc if above 1.00): 0,45

            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): 0,513 / 0,519

            Length to Beam Ratio: 7,25 : 1

            'Natural speed' for length: 17,03 kts

            Power going to wave formation at top speed: 49 %

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

            Bow angle (Positive = bow angles forward): 19,00 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 %,  20,00 ft / 6,10 m,  20,00 ft / 6,10 m

              - Forward deck: 30,00 %,  20,00 ft / 6,10 m,  20,00 ft / 6,10 m

              - Aft deck:      35,00 %,  20,00 ft / 6,10 m,  20,00 ft / 6,10 m

              - Quarter deck:  15,00 %,  20,00 ft / 6,10 m,  20,00 ft / 6,10 m

              - Average freeboard:                    20,00 ft / 6,10 m

### Ship space, strength and comments:

            Space  - Hull below water (magazines/engines, low = better): 116,4 %

                          - Above water (accommodation/working, high = better): 159,3 %

            Waterplane Area: 7.821 Square feet or 727 Square metres

            Displacement factor (Displacement / loading): 109 %

            Structure weight / hull surface area: 60 lbs/sq ft or 292 Kg/sq metre

            Hull strength (Relative):

                          - Cross-sectional: 0,80

                          - Longitudinal: 7,48

                          - Overall: 1,00

            Cramped 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

## Extras and notes:

* 3 masts Barque rig sails 90 tons can sail at 10 knots at best conditions
* 30 Tons of extra space for workshops and supplies for long deployents as well as extra marine quarters
* 6/40 1888
* 4.7/40 1895
* 47mm/40 1886
* 7.5 MGs