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).
Summary report of frame failures observed during bump testing, with accompanying sketches.
| Identifier | ExFiles\Box 119\2\ scan0196 | |
| Date | 1st April 1924 | |
| S. BUMP TEST SUMMARY CONT'd (N.SCH. ITOE). FRAME FAILURES. PIECE No | RUNNING TIME HRS MINS | REMARKS ---|---|--- F2889 | 16 - 15 | Near-side flange 3rd cross-member cracked (Sketch 1) F7387 | 24 - 40 | Near-side channel member cracked (Sketch 2). F7328 | 24 - 40 | Both near-side and off-side brackets 5th cross member cracked (Sketch 3). F7388 | 45 - 15 | Off-side channel member cracked at ballast box support hole (Sketch 4). F2406 | 55 0 | Near-side strut joining 3rd cross member to rear spring fulcrum broken. F7387 | 76 - 35 | Near-side channel member cracked (@ Sketch 5). F7387 | 78 - 7 | Near-side channel member cracked (@ Sketch 5). FT387 | 41 - 33 | Near-side channel member cracked (@ Sketch 5). Sketches: Sketch 1. CRACKS Sketch 2. CRACK Sketch 3. CRACKS Sketch 4. CRACKS Sketch 5. CRACK @ Sketch 6. CRACK EAP | ||