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).
Hand-drawn design sketches with notes on stress and stiffness for a frame component.
| Identifier | WestWitteringFiles\R\January1928-March1928\ 140 | |
| Date | 15th March 1928 guessed | |
| IT IS ASSUMED THAT THE UPPER JOGGLE WILL GIVE THE REQUIRED STIFFNESS TO BENDING IN THIS VIEW. DASH STAYS OPPOSITE FRAME, LOOKING FORWARD OR PERHAPS BACKWARD. TRY WITH AND WITHOUT SPHERICAL FIXING HERE. DON'T FIT IF NO DEFINITE BENEFIT. 5/8" TUBE. SAY 3/4" TUBE. THE VERTICAL STRESSES SEEM WELL PROVIDED FOR. | ||