Kuter trałowy typu KT-17 (8 szt.)
Okręciki te stanowią
niewielkie rozwinięcie typu KT-1. Są nieco większe, mają większy zasięg, a
dodatkowo posiadają możność stawiania niewielkiej ilości min.
Mimo niewielkich
rozmiarów, ich właściwości morskie są na dość wysokim poziomie. Wynika to głównie (dzień dobry Autorze Springsharpa :)!) z niewielkiej
prędkości maksymalnej.
Dwie jednostki tego typu będą bazować w nowo
pozyskanej bazie w Świnoujściu, a reszta w koloniach.
KT-17, Poland Minesweeping craft laid down
1937
Displacement:
80
t light; 82 t standard; 86 t normal; 89 t full load
Dimensions: Length (overall / waterline) x
beam x draught (normal/deep)
(104,25
ft / 101,71 ft) x 18,37 ft x (4,59 / 4,68 ft)
(31,77
m / 31,00 m) x 5,60 m x (1,40 / 1,43 m)
Armament:
1
- 1,57" / 40,0 mm 60,0 cal gun - 2,14lbs / 0,97kg shells, 600 per gun
Anti-air gun in deck mount, 1937 Model
1 x Single mount on centreline, forward deck
forward
1 - 0,51" / 13,0 mm 75,0 cal gun -
0,08lbs / 0,03kg shells, 1 500 per gun
Machine gun in deck mount, 1937 Model
1 x Single mount on centreline, forward deck
aft
Weight of broadside 2 lbs / 1 kg
Mines
2
- 1 433,01 lbs / 650,00 kg mines + 8 reloads - 6,397 t total
in
Above water - Stern racks/rails
Main DC/AS Mortars
2
- 246,92 lbs / 112,00 kg Depth Charges + 16 reloads - 1,984 t total
in
Stern depth charge racks
Machinery:
Diesel
Internal combustion motors,
Geared
drive, 2 shafts, 544 shp / 405 Kw = 14,00 kts
Range
750nm at 10,00 kts
Bunker
at max displacement = 6 tons
Complement:
13
- 18
Cost:
£0,028
million / $0,112 million
Distribution of weights at normal
displacement:
Armament:
11 tons, 13,1%
- Guns: 1 tons, 0,9%
- Weapons: 10 tons, 12,2%
Machinery:
15 tons, 17,6%
Hull,
fittings & equipment: 37 tons, 43,2%
Fuel,
ammunition & stores: 6 tons, 7,0%
Miscellaneous
weights: 16 tons, 19,1%
- Hull above water: 8 tons
- On freeboard deck: 8 tons
Overall survivability and seakeeping ability:
Survivability
(Non-critical penetrating hits needed to sink ship):
241 lbs / 109 Kg = 123,2 x 1,6 " / 40 mm
shells or 0,4 torpedoes
Stability
(Unstable if below 1.00): 1,31
Metacentric
height 0,6 ft / 0,2 m
Roll
period: 9,7 seconds
Steadiness - As gun platform (Average = 50 %): 74 %
-
Recoil effect (Restricted arc if above 1.00): 0,02
Seaboat
quality (Average = 1.00): 1,35
Hull form characteristics:
Hull
has rise forward of midbreak,
a normal bow and large transom stern
Block
coefficient (normal/deep): 0,350 / 0,355
Length
to Beam Ratio: 5,54 : 1
'Natural
speed' for length: 12,50 kts
Power
going to wave formation at top speed: 58 %
Trim
(Max stability = 0, Max steadiness = 100): 55
Bow
angle (Positive = bow angles forward): 16,00 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%, 8,86 ft /
2,70 m, 7,87 ft / 2,40 m
- Forward deck: 35,00%, 7,87 ft / 2,40
m, 7,87 ft / 2,40 m
- Aft deck: 20,00%, 3,94 ft / 1,20 m, 3,94 ft / 1,20 m
- Quarter deck: 25,00%, 3,94 ft / 1,20
m, 3,94 ft / 1,20 m
- Average freeboard: 6,18 ft / 1,88 m
Ship
tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low =
better): 71,0%
-
Above water (accommodation/working, high = better): 109,4%
Waterplane
Area: 1 159 Square feet or 108 Square metres
Displacement
factor (Displacement / loading): 177%
Structure
weight / hull surface area: 22 lbs/sq ft or 106 Kg/sq metre
Hull
strength (Relative):
-
Cross-sectional: 0,85
-
Longitudinal: 4,22
-
Overall: 1,00
Excellent
machinery, storage, compartmentation space
Adequate
accommodation and workspace room
Ship
has slow, easy roll, a good, steady gun platform
Good
seaboat, rides out heavy weather easily
KT-17 - KT-24 (1937)
