Could a Queen Elizabeth-class hull fit enough boilers to reach 26 knots if stretched toward battlecruiser proportions?
Short answerA rough comparison with Tiger suggests a longer Queen Elizabeth-type ship could plausibly reach 26 knots, while 28 knots would require a more demanding design.
NotesThe practical geometry of speed includes beam, length, draft, boiler count, and the difference between a fast battleship and a true battlecruiser-like requirement. A lengthened Queen Elizabeth-type ship could plausibly reach 26 knots, but pushing toward 28 knots becomes a more serious design problem.