Naval Historywith Dr. Alex

Q&A · 46:37-47:45

Designing diesel-electric power for later speed growth

A 2,000-ton escort counterfactual shows that extra diesel generation alone cannot deliver 30 knots unless motors, shafts, propellers, and internal space are sized for the growth.

Design For GrowthDiesel Electric PropulsionElectric MotorsNaval EngineeringPropeller ShaftsPropulsionSloopsWarship Design
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Question

Could a 2,000-ton diesel-electric ship be designed to accept extra engines later and reach 30 knots?

Short answer

Yes in principle, but only if space, motors, shafts, and propellers are designed from the outset to handle the expanded generating power.

Notes

Diesel-electric propulsion would be the easiest route to designing a 2,000-ton ship for later increases in power. At least two shafts would be desirable, while additional diesel engines and generators could raise the electrical supply. The design would still need enough internal space for that machinery. Its motors, shafts, and propellers must also be sized from the beginning for the higher output because generation capacity alone cannot turn an undersized propulsion train into a 30-knot system.