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).
Design changes for the 'Myth' project's right and left hand frame centre gussets.
| Identifier | ExFiles\Box 110\2\ scan0022 | |
| Date | 1st April 1941 | |
| To Rm.{William Robotham - Chief Engineer} from Ev{Ivan Evernden - coachwork}/JD.{J. Draper - Frames} c. to Ev.{Ivan Evernden - coachwork} c. to Rm{William Robotham - Chief Engineer}/HH. MYTH FRAME. Ev{Ivan Evernden - coachwork}/JD.{J. Draper - Frames}6/SW.1.4.41. We attach to Rm{William Robotham - Chief Engineer}/HH's copy, the originals of :- PL.521 Frame Rt. Hd.{Mr Hayward/Mr Huddy} Centre Gusset. PL.526 Frame Lt. Hd.{Mr Hayward/Mr Huddy} Centre Gusset. PL.521 replaces the design of the Rt. Hd.{Mr Hayward/Mr Huddy} Centre Gusset shown on PL.446 and shows the flanges turned the opposite direction to PL.446 to clear the side hand brake mechanism. PL.526 shows the Lt. Hd.{Mr Hayward/Mr Huddy} Centre Gusset which is similar in design to the Rt. Hd.{Mr Hayward/Mr Huddy} Gusset, but we have provided a slot in the bottom flange through which to pass the Exhaust Pipe. To retain the bottom flange stiffness and make the design for easy removal of the exhaust system, we have shown a keeper plate passing underneath the exhaust pipe. Ev{Ivan Evernden - coachwork}/JD.{J. Draper - Frames} Originals of PL.521 & PL.526 to Rm{William Robotham - Chief Engineer}/HH. Prints to Ev.{Ivan Evernden - coachwork} Rm{William Robotham - Chief Engineer}/HH. Ev{Ivan Evernden - coachwork}/JD.{J. Draper - Frames} & Ashby. | ||