A 1,100-1,500-ton propeller-shaft estimate was plausible but unverified

Is an estimate of about 1,100 to 1,500 tons for propellers and shafts close to the real weight?

It may be close, but specialist notes should be checked before treating the range as confirmed.

The estimate remains provisional rather than a confident design figure. A range of roughly 1,100 to 1,500 tons for propellers and shafts seems plausible from memory. Drachinifel's calculations and notes would need to be checked before confirming it. This separates a reasonable order-of-magnitude estimate from a sourced weight statement.