III. Korvetten (Avisos).
..(h) Hilfskreuzers (Armed Merchant Cruisers).
.....SS Kaiser Wilhelm der Große (1897)
.....SS Prinz August Wilhelm (ex-Prinz Eitel Friedrich) (1904)
SS Kaiser Wilhelm der Große of the Brandenburg-Amerika Line - laid down 1897
(http://www.german-navy.de/pics/hochseeflotte/kaiserwilhelmdergrosse.gif)
Brandenburgian Hilfskreuzer laid down 1897
Displacement:
20,600 t light; 21,100 t standard; 24,110 t normal; 26,517 t full load
Dimensions: Length overall / water x beam x draught
662.73 ft / 654.53 ft x 66.04 ft x 27.89 ft (normal load)
202.00 m / 199.50 m x 20.13 m x 8.50 m
Armament:
6 - 4.13" / 105 mm guns in single mounts, 35.27lbs / 16.00kg shells, 1905 Model
Quick firing guns in deck mounts
on side, evenly spread
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1905 Model
Quick firing guns in deck mounts
on side, all amidships
1 - 1.97" / 50.0 mm guns in single mounts, 3.86lbs / 1.75kg shells, 1905 Model
Anti-airship gun in deck mount
on centreline aft
Weight of broadside 219 lbs / 99 kg
Shells per gun, main battery: 150
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 4 shafts, 38,000 ihp / 28,348 Kw = 22.50 kts
Range 8,000nm at 12.00 kts (Bunkerage = 5,417 tons)
Complement:
966 - 1,257
Cost:
£1.616 million / $6.464 million
Distribution of weights at normal displacement:
Armament: 27 tons, 0.1 %
Machinery: 6,229 tons, 25.8 %
Hull, fittings & equipment: 9,343 tons, 38.8 %
Fuel, ammunition & stores: 3,510 tons, 14.6 %
Miscellaneous weights: 5,000 tons, 20.7 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
20,874 lbs / 9,469 Kg = 591.0 x 4.1 " / 105 mm shells or 1.7 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 3.2 ft / 1.0 m
Roll period: 15.4 seconds
Steadiness - As gun platform (Average = 50 %): 75 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 1.82
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.700
Length to Beam Ratio: 9.91 : 1
'Natural speed' for length: 25.58 kts
Power going to wave formation at top speed: 41 %
Trim (Max stability = 0, Max steadiness = 100): 41
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 8.20 ft / 2.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27.89 ft / 8.50 m
- Forecastle (20 %): 24.61 ft / 7.50 m
- Mid (50 %): 21.33 ft / 6.50 m
- Quarterdeck (15 %): 21.33 ft / 6.50 m
- Stern: 21.33 ft / 6.50 m
- Average freeboard: 22.74 ft / 6.93 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 107.5 %
- Above water (accommodation/working, high = better): 150.9 %
Waterplane Area: 34,647 Square feet or 3,219 Square metres
Displacement factor (Displacement / loading): 136 %
Structure weight / hull surface area: 165 lbs/sq ft or 807 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.64
- Longitudinal: 1.97
- Overall: 1.67
Hull space for machinery, storage, compartmentation is adequate
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
SS Prinz August Wilhelm, ex-Prinz Eitel Friedrich of the German-Australian Line - laid down 1904, re-named 1909
(http://www.german-navy.de/pics/hochseeflotte/prinzeitelfriedrich.gif)
Brandenburgian Hilfskreuzer laid down 1904
Displacement:
13,618 t light; 13,972 t standard; 16,011 t normal; 17,643 t full load
Dimensions: Length overall / water x beam x draught
507.22 ft / 507.22 ft x 65.49 ft x 27.89 ft (normal load)
154.60 m / 154.60 m x 19.96 m x 8.50 m
Armament:
4 - 4.13" / 105 mm guns in single mounts, 35.27lbs / 16.00kg shells, 1905 Model
Breech loading guns in deck mounts
on side ends, evenly spread
8 - 3.46" / 88.0 mm guns in single mounts, 22.05lbs / 10.00kg shells, 1900 Model
Breech loading guns in deck mounts
on side, evenly spread
12 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1905 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
1 - 1.97" / 50.0 mm guns in single mounts, 3.86lbs / 1.75kg shells, 1903 Model
Anti-airship gun in deck mount
on centreline aft, 1 raised gun
Weight of broadside 340 lbs / 154 kg
Shells per gun, main battery: 150
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 4 shafts, 7,000 ihp / 5,222 Kw = 14.91 kts
Range 8,000nm at 12.00 kts (Bunkerage = 3,670 tons)
Complement:
711 - 925
Cost:
£0.655 million / $2.622 million
Distribution of weights at normal displacement:
Armament: 41 tons, 0.3 %
Machinery: 1,029 tons, 6.4 %
Hull, fittings & equipment: 8,548 tons, 53.4 %
Fuel, ammunition & stores: 2,393 tons, 14.9 %
Miscellaneous weights: 4,000 tons, 25.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
29,801 lbs / 13,518 Kg = 843.7 x 4.1 " / 105 mm shells or 3.8 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 3.2 ft / 1.0 m
Roll period: 15.4 seconds
Steadiness - As gun platform (Average = 50 %): 46 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 1.63
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.605
Length to Beam Ratio: 7.75 : 1
'Natural speed' for length: 22.52 kts
Power going to wave formation at top speed: 28 %
Trim (Max stability = 0, Max steadiness = 100): 26
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.43 ft / 7.75 m
- Forecastle (20 %): 21.33 ft / 6.50 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: 19.52 ft / 5.95 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 51.2 %
- Above water (accommodation/working, high = better): 122.9 %
Waterplane Area: 24,407 Square feet or 2,267 Square metres
Displacement factor (Displacement / loading): 251 %
Structure weight / hull surface area: 217 lbs/sq ft or 1,058 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 2.32
- Longitudinal: 3.96
- Overall: 2.44
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather