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).
Standardisation sheet listing parts not yet fitted to 40/50 HP and 20 HP production chassis.
| Identifier | ExFiles\Box 29\2\ Scan145 | |
| Date | 2nd May 1927 | |
| BY/M14/G.2.5.27. X3066 HR 40/50 HP. & 20 HP. CHASSIS - STANDARDISATION SHEETS. PARTS NOT YET FITTED TO PRODUCTION CHASSIS. Date Issued | Stn. Sht. No. | TITLE | Date Completed | Series where brought in | Chassis to Test 40/50 HP CHASSIS 22.9.26. | X7205/8205. | Oil Relief Valve | 20.10.26. | D-2 | 14.5.27. 23.9.26. | X.8685/7685 | Ignition Governor - Oil Relay Piston using metal packing rings. | 20.10.26. | D-2 | 14.5.27. 23.9.26. | X.7220 | Fan with Duralumin Blades | 18.10.26. | D-2 | 14.5.27. 24.9.26. | X.7320 | Front Silencer | 19.10.26. | D-2 | 14.5.27. 1.10.26. | X.7310/7320 | Gear Box to suit Plunger controlled Selectors - torsionally free 1st. & 2nd. pinions, and sliding wheels re-arranged to give definite end clearance. | 27.10.26. | D-2 | 14.5.27. 24.9.26. | X.7310/7320 | "D" type C.H.N.S. Keyed Type Change Gear Shaft - Modified bush and spring. | 19.10.26. | D-2 | 14.5.27. 24.9.26. | X.7310/7320 | Main Bearings with Steel Shells. | 27.10.26. | Not known. | 14.5.27. 1.10.26. | X.235.7250 8520. | Rear Hydraulic Shock Dampers. | 6.12.26. | D-2 | 14.5.27. 16.11.26. | X.3180/8180 | Jubilee Clips for Rubber Connections. | 17.12.26. | D-2 | 14.5.27. 26.11.26. | X.8430/8311 | Incorporation of B. Type Lever on chassis with 'C' steering. | 2.12.26. | D-2 | 14.5.27. 24.12.26. | X.8370 | Flexibility in Servo Shaft | 17.1.27. | D-2 | 14.5.27. 29.9.26. | X.7390/7380 | Front Wing Stay | 23.2.27. | Not settled. | Not settled. DERBY TP-BOX | ||