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Sunday, January 16, 2005

Springsharp tips

I've developed a few tricks that I use to make a warship design work in Springsharp. The issues that you might encounter include:
  1. "Hull subject to strain in open-sea"
  2. "Poor stability - excessive risk of capsizing"
  3. "Poor seaboat, wet and uncomfortable, reduced performance in heavy weather"
  4. "DESIGN FAILURE: Overall load weight too much for hull"
  5. "Hull space for machinery, storage, compartmentation is cramped"
  6. "Warning: Too much power for number of propellor shafts"
  7. "Design undergunned or otherwise under performing relative to displacement"
Often, fixing one problem will aggrevate another, so this is a process of tradeoffs.

Hull Strength:

  1. Increase draft
  2. Increase freeboard
  3. Increase displacement without changing dimensions, by increasing the block coefficient
  4. Decrease the maximum speed
Stability:
  1. Increase beam
  2. Decrease freeboard
  3. Increase range, which increases fuel bunkerage, increasing low weights
  4. Decrease armor on turrets, barbettes, and conning tower
  5. Increase the maximum speed, as this increases machinery weight, a low weight
Seakeeping:
  1. Increase length
  2. Decrease beam
  3. Decrease displacement
  4. Decrease speed
  5. Increase freeboard
Too much weight for structure:
  1. Typically, this is caused by too high a maximum speed, which is causing the machinery weight to be too great
  2. Increase displacement
  3. Decrease gun calibers
  4. Decrease armor
  5. Decrease range
Space for machinery:
  1. Decrease maximum speed
  2. Increase beam
  3. Increase draft
  4. Increase length
  5. Decrease range
Too few propellor shafts, due to the "70,000SHP/shaft limit":
  1. Increase the number of shafts
  2. Decrease maximum speed
Underperforming for the displacement:
  1. Reduce the displacement until the composite strength is 1.00, or until the you get the "Design well balanced for a light fast combatant", as Springsharp will accept a Composite Strength less than 1.00 for a destroyer-type ship
  2. Increase the maximum speed

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