Lessons learned from using Springsharp

Lessons learned:

1. The biggest lesson learned from having run Springsharp a good deal is that back in 1971, we were too quick to sacrifice side armor to get high speed. We actually didn't need to go as thin as 4 inches. That is true, at least, if we were willing to let the displacement grow, without materially changing dimensions.
2. Another lesson is that we often underestimated the displacement that would be required to achieve the design characteristics we desired.
3. At least with Springsharp, very high speeds are difficult to achieve and have sufficient strength and adequate seakeeping ability. Partly, this is an artificat of Springsharp having trouble with small, high-speed ships. This is partly manifested in having to move the date of machinery out into the future to achieve SHP/ton figures that were achieved much earlier. For example, the British super-destroyer Swift could be pressed to 64 SHP/ton.