List of springs on order for the Goshawk II chassis for the Works and Experimental Department.
| Identifier | ExFiles\Box 49\3\ Scan064 | |
| Date | 4th November 1921 | |
| To Sir Henries "GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) II" CHASSIS. SPRINGS ON ORDER. (FOR THE WORKS). X4261 FIRST TABLE FRONT. | NO. OF SETS. | REAR. | NO. OF SETS. 500 lbs. | 4. | 800 lbs. | 4. 540 lbs. | 5. | 900 lbs. | 5. 600 lbs. | 3. | 1000 lbs. | 3. SPRINGS ON ORDER. (FOR THE EXP. DEPT.) SECOND TABLE FRONT. | NO. OF SETS. | REAR. | NO. OF SETS. Bumping Tests { 500 lbs. | 2. 540 lbs. | 2. 600 lbs. | 2. } 630 lbs. | 1. Bumping Tests { 800 lbs. | 2. 900 lbs. | 2. 1000 lbs. | 2. } 1100 lbs. | 2. HW 4/11/21 | ||
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).