Specification sheet detailing the weights of the 20 HP Goshawk-11 chassis in various configurations.
| Identifier | ExFiles\Box 107\4\ scan0033 | |
| Date | 5th June 1923 | |
| 20 HP. CAR WEIGHTS. Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11 chassis. | 2378 lbs. 2-Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11 Spare wheel, full tank, tools and wire wheels. | (O.S.) 13 cwts. 2 qrs. 14 lbs. (N.S.) 13 " 2 " 14 " total. 1 ton. 7 " 1 " 0 " 3-Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11. Spare wheel, full tank, tools, wire wheels. | (front) 13 cwts. 1 qr. 14 lbs. (rear) 17 " 2 " 14 " (total) 1 ton. 11 " 0 " 0 " (N.S.) 15 cwts. 1 qr. 14 lbs. (O.S.) 15 " 2 " 14 " (total) 1 ton. 11 " 0 " 0 " 7-Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11. Spare wheel, full tank, tools, wire wheels. | (front) 19 cwts. 1 qr. 14 lbs. (rear) 13 " 2 " 14 " (total) 1 ton. 13 " 0 " 0 " [Watermark] MADE AT CROXLEY | ||
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).