V. (c) Kanonbooten (Gunboats)

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V. Kanonbooten (Gunboats).
..(c) Kanonbooten (Gunboats).
.....SMS Iltis
.....SMS Jaguar
.....SMS Tiger
.....SMS Luchs

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Iltis class

SMS Iltis - laid down 1896, commissioned 1896
SMS Jaguar - laid down 1897, commissioned 1897



DKB Kanonboot laid down 1896

Displacement:
807 t light; 832 t standard; 948 t normal; 1,041 t full load

Dimensions: Length overall / water x beam x draught
213.91 ft / 209.65 ft x 29.86 ft x 11.78 ft (normal load)
65.20 m / 63.90 m x 9.10 m x 3.59 m

Armament:
4 - 3.46" / 88.0 mm guns in single mounts, 15.43lbs / 7.00kg shells, 1892 Model
Quick firing guns in deck mounts with hoists
on side ends, evenly spread
6 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1897 Model
Machine guns in deck mounts
on side, evenly spread

Weight of broadside 62 lbs / 28 kg
Shells per gun, main battery: 150

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.79" / 20 mm - -

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 1,400 ihp / 1,044 Kw = 14.78 kts
Range 3,250nm at 10.00 kts (Bunkerage = 209 tons)

Complement:
85 - 111

Cost:
£0.070 million / $0.279 million

Distribution of weights at normal displacement:
Armament: 10 tons, 1.1 %
Armour: 6 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 6 tons, 0.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 233 tons, 24.6 %
Hull, fittings & equipment: 538 tons, 56.8 %
Fuel, ammunition & stores: 140 tons, 14.8 %
Miscellaneous weights: 20 tons, 2.1 %
      - 10 tons, climatisation
      - 10 tons, 15 350-kg mines and rails

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,323 lbs / 600 Kg = 63.6 x 3.5 " / 88 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.32
Metacentric height 1.3 ft / 0.4 m
Roll period: 10.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.13
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.450
Length to Beam Ratio: 7.02 : 1
'Natural speed' for length: 14.48 kts
Power going to wave formation at top speed: 44 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): -5.00 degrees
Stern overhang: 4.27 ft / 1.30 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 12.30 ft / 3.75 m
- Forecastle (20 %): 10.66 ft / 3.25 m
- Mid (50 %): 9.84 ft / 3.00 m
- Quarterdeck (15 %): 9.84 ft / 3.00 m
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 10.26 ft / 3.13 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 91.0 %
- Above water (accommodation/working, high = better): 89.8 %
Waterplane Area: 3,992 Square feet or 371 Square metres
Displacement factor (Displacement / loading): 165 %
Structure weight / hull surface area: 78 lbs/sq ft or 381 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.61
- Longitudinal: 5.11
- Overall: 1.80
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

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Tiger class

SMS Tiger - laid down 1898, commissioned 1898
SMS Luchs - laid down 1898, commissioned 1899



DKB Kanonboot laid down 1898

Displacement:
980 t light; 1,009 t standard; 1,146 t normal; 1,255 t full load

Dimensions: Length overall / water x beam x draught
213.91 ft / 209.65 ft x 29.86 ft x 11.65 ft (normal load)
65.20 m / 63.90 m x 9.10 m x 3.55 m

Armament:
2 - 4.13" / 105 mm guns in single mounts, 35.27lbs / 16.00kg shells, 1897 Model
Quick firing guns in deck mounts with hoists
on centreline ends, evenly spread
6 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1897 Model
Machine guns in deck mounts
on side, evenly spread

Weight of broadside 71 lbs / 32 kg
Shells per gun, main battery: 150

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm - -

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 1,500 ihp / 1,119 Kw = 14.48 kts
Range 3,500nm at 10.00 kts (Bunkerage = 245 tons)

Complement:
97 - 127

Cost:
£0.076 million / $0.302 million

Distribution of weights at normal displacement:
Armament: 9 tons, 0.8 %
Armour: 5 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 242 tons, 21.1 %
Hull, fittings & equipment: 629 tons, 54.9 %
Fuel, ammunition & stores: 165 tons, 14.4 %
Miscellaneous weights: 95 tons, 8.3 %
      - 30 tons, 45 350-kg mines and rails
      - 25 tons, cargo space
      - 20 tons, accomodations for 20-man jaeger detachment
      - 10 tons, Markoni room
      - 10 tons, climatisation

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,564 lbs / 709 Kg = 44.3 x 4.1 " / 105 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 1.2 ft / 0.4 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.15
Seaboat quality (Average = 1.00): 1.88

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 7.02 : 1
'Natural speed' for length: 14.48 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 38
Bow angle (Positive = bow angles forward): -5.00 degrees
Stern overhang: 4.27 ft / 1.30 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 12.30 ft / 3.75 m
- Forecastle (20 %): 10.66 ft / 3.25 m
- Mid (50 %): 9.84 ft / 3.00 m
- Quarterdeck (15 %): 9.84 ft / 3.00 m
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 10.26 ft / 3.13 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 84.2 %
- Above water (accommodation/working, high = better): 86.0 %
Waterplane Area: 4,368 Square feet or 406 Square metres
Displacement factor (Displacement / loading): 175 %
Structure weight / hull surface area: 86 lbs/sq ft or 420 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.80
- Longitudinal: 5.04
- Overall: 2.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather