From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
The formulas for wave velocity and stress in terms of load.
| Identifier | ExFiles\Box 56\2\ Scan112 | |
| Date | 18th December 1931 guessed | |
| -2- Wave velocity = sqrt( (cd^4 g / 8D^3 k^1) * (4L / ( (k^1 L + 1) 2 Dd^2 w ) ) ) = (dL / (Π(2k^1L + 1) D^2)) * sqrt(2Cg / w) = (d / (2 k^1 D^2)) * sqrt(2Cg / w) ____________________ Stress in terms of load :- f = 1/Π * (Cdδ / D^2n) = (8D / Πd^3) * W ____________________ EFC. | ||