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).
Table of comparative chassis deflection measurements under increasing loads for various models and configurations.
| Identifier | ExFiles\Box 114\3\ scan0223 | |
| Date | 5th August 1937 guessed | |
| Column Headers: - Nº OF TEST - Column 1: TOTAL DEFLECTION OF A & B - Column 2: As 1 WHEEL LIFTED FROM STEP - IRON - Column 3: FRAME TO DASH. "C" - STANDARD - Column 4: FRAME TO DASH. "C" - STAY X - Column 5: FRAME TO DASH. "C" - STAYS X + Y - Column 6: FRAME TO HUB. "B" - WRAITH - Column 7: FRAME TO HUB. "B" - PH. III - Column 8: FRAME TO HUB. "B" - BENTLEY - Column 9: TOTAL DEFLECTION BENTLEY TUBE WRAITH FRAME STAYS X + Y Data Table: LOAD | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 10 LBS | .011" | .011" | .005" | .002" | .002" | .007" | .004" | .003" | .004" 20 LBS | .018 | .018 | .006 | .004 | .003 | .011 | .006" | .004 | .007 30 LBS | .025 | .027 | .009 | .005 | .004 | .015 | .009 | .007 | .010 40 LBS | .033 | .035 | .012 | .006 | .005 | .020 | .011 | .008 | .012 50 LBS | .039 | .044 | .014 | .007 | .007 | .025 | .015 | .010 | .016 60 LBS | .047 | .053 | .017 | .009 | .008 | .028 | .017 | .013 | .019 70 LBS | .055 | .065 | .020 | .011 | .010 | .034 | .020 | .015 | .024 80 LBS | .065 | .070 | .025 | .014 | .011 | .039 | .023 | .018 | .028 | ||