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).
Listing the overall lengths of various engine models.
| Identifier | ExFiles\Box 135\1\ scan0145 | |
| Date | 8th April 1938 | |
| 1135. To Rm.{William Robotham - Chief Engineer} 8.4.38. LENGTH OVER FAN OR EVERYTHING. 25/30 H.P. 6 cyl. 34.75. Phantom III 12 cyl. 40. As drawn 8 cyl. 42.25 Phantom II. 6 cyl. 43.00 8 cyl. can be reduced in length by 1 1/2". JNR.{Charles L. Jenner} | ||