Could small-tube boilers make Queen Elizabeth a 28-knot battleship?

If Queen Elizabeth had received early small-tube boilers, could she have reached about 28 knots?

Possibly; contemporary Yarrow machinery might approach 100,000 shaft horsepower, and a slightly lengthened hull could put the design near 28 knots.

The Queen Elizabeth class's 24 large-tube boilers and roughly 75,000 shaft horsepower provide a comparison for the 20 small-tube Yarrow boilers proposed for the Francesco Caracciolo class. A simple power comparison suggests later small-tube machinery could reach about 126,000 shaft horsepower, although a 1912-era installation would probably be less efficient and nearer 100,000. That output is judged potentially sufficient for about 28 knots, especially if the hull were lengthened slightly to improve its proportions and create more machinery space. These are explicitly rough engineering estimates; a final design study is not supplied.