Back in 1971, I had a concept for a fast minelayer

I had been calling my German fast minelayer Ger/ML/1913, but probably Ger/DM/1913 is more appropriate, as it is a large destroyer-minelayer design. For some reason, I had thought that 2-6in guns was an appropriate armament, which I no longer believe. The dimensions are 350ft x 35ft. I had hoped for a 10ft draft and 1,600 ton displacement, but I had to go larger for draft and displacement to achieve adequate strength and seakeeping ability. The freeboard is also rather great. The design depends on high-power, lightweight machinery to be viable. The primary issue in Springsharp is the speed, as Springsharp requires too much power for the speed, in my opinion:

Ger/DM/1913, Germany Destroyer Minelayer laid down 1913 (Engine 1950)

Displacement:
 1,948 t light; 2,006 t standard; 2,150 t normal; 2,265 t full load

Dimensions: Length overall / water x beam x draught
 350.87 ft / 350.00 ft x 35.00 ft x 15.00 ft (normal load)
 106.95 m / 106.68 m x 10.67 m  x 4.57 m

Armament:
      2 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1913 Model
   Quick firing guns in deck mounts with hoists
   on centreline ends, evenly spread
 Weight of broadside 216 lbs / 98 kg
 Shells per gun, main battery: 125

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 2 shafts, 58,373 shp / 43,546 Kw = 35.00 kts
 Range 3,200nm at 15.00 kts
 Bunker at max displacement = 259 tons

Complement:
 157 - 205

Cost:
 £0.267 million / $1.070 million

Distribution of weights at normal displacement:
 Armament: 27 tons, 1.3 %
 Machinery: 1,102 tons, 51.2 %
 Hull, fittings & equipment: 570 tons, 26.5 %
 Fuel, ammunition & stores: 202 tons, 9.4 %
 Miscellaneous weights: 250 tons, 11.6 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   442 lbs / 201 Kg = 4.1 x 6.0 " / 152 mm shells or 0.3 torpedoes
 Stability (Unstable if below 1.00): 1.17
 Metacentric height 1.4 ft / 0.4 m
 Roll period: 12.5 seconds
 Steadiness - As gun platform (Average = 50 %): 53 %
   - Recoil effect (Restricted arc if above 1.00): 0.34
 Seaboat quality  (Average = 1.00): 1.05

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.410
 Length to Beam Ratio: 10.00 : 1
 'Natural speed' for length: 18.71 kts
 Power going to wave formation at top speed: 70 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 2.00 degrees
 Stern overhang: 0.00 ft / 0.00 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  25.00 ft / 7.62 m
    - Forecastle (20 %): 22.00 ft / 6.71 m
    - Mid (34 %):  22.00 ft / 6.71 m (14.00 ft / 4.27 m aft of break)
    - Quarterdeck (15 %): 14.00 ft / 4.27 m
    - Stern:  14.00 ft / 4.27 m
    - Average freeboard: 16.96 ft / 5.17 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 187.3 %
  - Above water (accommodation/working, high = better): 144.7 %
 Waterplane Area: 7,584 Square feet or 705 Square metres
 Displacement factor (Displacement / loading): 66 %
 Structure weight / hull surface area: 33 lbs/sq ft or 161 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.43
  - Longitudinal: 2.76
  - Overall: 0.52
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent