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Support vessels
Date Class # Displacement Notes
1909 Brauerei -tender 1 1500t Supports up to 2,400 tons
1915 Lachs -tender 1 9000t Supports up to 18,000 tons,
2500ts coal
1916 Tern -transport 1 6800t Battalion lift
# in class : 1
Names :
Kliene BrauereiOfficial Data :
1,500 tons
80m x 11m x 4.5m
12kts, 2,000nm
unarmed
unarmored
Bavaria Depot Ship laid down 1909
Displacement:
1,400 t light; 1,430 t standard; 1,514 t normal; 1,582 t full load
Dimensions: Length overall / water x beam x draught
255.54 ft / 252.00 ft x 37.00 ft x 13.60 ft (normal load)
77.89 m / 76.81 m x 11.28 m x 4.15 m
Machinery:
Coal fired boilers, reciprocating steam engines,
Direct drive, 1 shaft, 841 ihp / 627 Kw = 12.00 kts
Range 2,100nm at 10.00 kts
Bunker at max displacement = 152 tons (100% coal)
Complement:
120 - 157
Cost:
£0.061 million / $0.245 million
Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 88 tons, 5.8 %
Hull, fittings & equipment: 712 tons, 47.0 %
Fuel, ammunition & stores: 115 tons, 7.6 %
Miscellaneous weights: 600 tons, 39.6 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,473 lbs / 1,122 Kg = 22.9 x 6 " / 152 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 1.2 ft / 0.4 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 38 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.42
Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.418
Length to Beam Ratio: 6.81 : 1
'Natural speed' for length: 15.87 kts
Power going to wave formation at top speed: 29 %
Trim (Max stability = 0, Max steadiness = 100): 20
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 17.65 ft / 5.38 m
- Forecastle (20 %): 17.65 ft / 5.38 m (9.65 ft / 2.94 m aft of break)
- Mid (50 %): 9.65 ft / 2.94 m
- Quarterdeck (15 %): 9.65 ft / 2.94 m
- Stern: 9.65 ft / 2.94 m
- Average freeboard: 11.25 ft / 3.43 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 62.8 %
- Above water (accommodation/working, high = better): 84.3 %
Waterplane Area: 5,502 Square feet or 511 Square metres
Displacement factor (Displacement / loading): 195 %
Structure weight / hull surface area: 76 lbs/sq ft or 372 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.55
- Longitudinal: 3.88
- Overall: 1.70
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Good seaboat, rides out heavy weather easily
Based on Rumanian submarine depot ship. Fitted with Engineering and torpedo shopes, bakery, torpedo loading room, salvage, diving and submarine signalling apparatus
# in class : 1
Name : Lachs
Official Data :
9,000 tons
120m x 20m x 5.5m
17kts, 5,000nm
2x 105mm, 4x MG
unarmored
Bavaria Tender/Collier laid down 1915 (Engine 1912)
Displacement:
7,000 t light; 7,194 t standard; 9,094 t normal; 10,615 t full load
Dimensions: Length overall / water x beam x draught
387.14 ft / 380.58 ft x 65.62 ft x 17.22 ft (normal load)
118.00 m / 116.00 m x 20.00 m x 5.25 m
Armament:
2 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1915 Model
Quick firing guns in deck mounts
on centreline ends, evenly spread
4 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1915 Model
Machine guns in deck mounts
on side ends, evenly spread
Weight of broadside 71 lbs / 32 kg
Shells per gun, main battery: 300
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.79" / 20 mm 0.39" / 10 mm -
2nd: 0.39" / 10 mm - -
Machinery:
Coal fired boilers, steam turbines plus diesel motors,
Electric motors, 2 shafts, 9,999 shp / 7,459 Kw = 17.40 kts
Range 12,975nm at 12.00 kts
Bunker at max displacement = 3,421 tons (80% coal)
Complement:
465 - 605
Cost:
£0.455 million / $1.819 million
Distribution of weights at normal displacement:
Armament: 9 tons, 0.1 %
Armour: 3 tons, 0.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 430 tons, 4.7 %
Hull, fittings & equipment: 1,993 tons, 21.9 %
Fuel, ammunition & stores: 2,094 tons, 23.0 %
Miscellaneous weights: 4,565 tons, 50.2 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
12,000 lbs / 5,443 Kg = 339.7 x 4.1 " / 105 mm shells or 2.2 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 3.1 ft / 0.9 m
Roll period: 15.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.67
Hull form characteristics:
Hull has raised forecastle, raised quarterdeck
Block coefficient: 0.740
Length to Beam Ratio: 5.80 : 1
'Natural speed' for length: 19.51 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 42
Bow angle (Positive = bow angles forward): -10.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.46 ft / 6.54 m
- Forecastle (15 %): 21.46 ft / 6.54 m (12.47 ft / 3.80 m aft of break)
- Mid (50 %): 12.47 ft / 3.80 m
- Quarterdeck (15 %): 21.46 ft / 6.54 m (12.47 ft / 3.80 m before break)
- Stern: 21.46 ft / 6.54 m
- Average freeboard: 15.16 ft / 4.62 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 71.4 %
- Above water (accommodation/working, high = better): 105.9 %
Waterplane Area: 20,734 Square feet or 1,926 Square metres
Displacement factor (Displacement / loading): 165 %
Structure weight / hull surface area: 72 lbs/sq ft or 352 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.35
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Enter percentage of bunker tonnage devoted to coal fired boilers
A large tender/collier to support the small Bavarian fleet on forays into the Med.
Miscellaneous weight :
4500t - The 4500 tons dedicated to fleet support and repair will support 18,000 tons of shipping, also known as the entire Bavarian navy.
25t - 100nm range radio is fitted.
20t - spare torpedos
20t- uncommitted reserve
The 3,421ton bunker full load contains over 2500 tons of coal for refueling.
The ships propulsion is 4/5 conventional coal boilers, 1/5 M.A.N. 2,000hp diesels. The diesels alone will propell the ship at over 11.1 knots.
The new turboelectric drive system is tried out in this ship as well.
# in Class : 1
Name : Tern
Official Data :
6,800 tons
145m x 20m x 4.5m
20kts, 5,000nm
4x 105mm, 4x 37mm
unarmored
Bavaria Dispatch vessel laid down 1916 (Engine 1912)
Displacement:
4,994 t light; 5,155 t standard; 6,794 t normal; 8,105 t full load
Dimensions: Length overall / water x beam x draught
482.28 ft / 475.72 ft x 55.77 ft (Bulges 65.62 ft) x 14.76 ft (normal load)
147.00 m / 145.00 m x 17.00 m (Bulges 20.00 m) x 4.50 m
Armament:
4 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1916 Model
Quick firing guns in deck mounts
on centreline, evenly spread, 2 raised mounts
Aft Main mounts separated by engine room
4 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1916 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 147 lbs / 67 kg
Shells per gun, main battery: 300
Machinery:
Coal and oil fired boilers, steam turbines,
Electric motors, 2 shafts, 13,397 shp / 9,994 Kw = 20.50 kts
Range 5,000nm at 18.00 kts
Bunker at max displacement = 2,950 tons (90% coal)
Complement:
373 - 486
Cost:
£0.445 million / $1.779 million
Distribution of weights at normal displacement:
Armament: 18 tons, 0.3 %
Machinery: 582 tons, 8.6 %
Hull, fittings & equipment: 2,194 tons, 32.3 %
Fuel, ammunition & stores: 1,800 tons, 26.5 %
Miscellaneous weights: 2,200 tons, 32.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13,672 lbs / 6,202 Kg = 387.1 x 4.1 " / 105 mm shells or 2.5 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 3.2 ft / 1.0 m
Roll period: 15.4 seconds
Steadiness - As gun platform (Average = 50 %): 72 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 1.80
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.516
Length to Beam Ratio: 7.25 : 1
'Natural speed' for length: 21.81 kts
Power going to wave formation at top speed: 41 %
Trim (Max stability = 0, Max steadiness = 100): 40
Bow angle (Positive = bow angles forward): -10.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.04 ft / 5.50 m
- Forecastle (20 %): 18.04 ft / 5.50 m
- Mid (50 %): 18.04 ft / 5.50 m
- Quarterdeck (15 %): 18.04 ft / 5.50 m
- Stern: 18.04 ft / 5.50 m
- Average freeboard: 18.04 ft / 5.50 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 66.1 %
- Above water (accommodation/working, high = better): 165.3 %
Waterplane Area: 17,940 Square feet or 1,667 Square metres
Displacement factor (Displacement / loading): 194 %
Structure weight / hull surface area: 78 lbs/sq ft or 380 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.30
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Designed as a fast transport/dispatch vessel.
Submergence 1595/ton
Misc weight : 2200
25t Long range wireless.
132t Class 1 staterooms x 20
14t cargo
54 tons extra boats (4x 16t)
250 tons : dedicated cargo hold
1700: troop decks
With a Bavarian Infantry battalion at 835 men, the vessel can transport a full battalion. Alternately a wide variety of cargo can be moved so long as it fits the troop spaces.
Cruising speed is 66% of maximum power, and the electrical system allows boilers to be brought down for maintenance without pause.
Electrical propulsion allows finer maneuvering and full reverse capacity, and is combined with a double hull (the bulges) to provide additional resiliences in primitive ports.