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).
Test results table for the flow of liquids through various nozzles, detailing the state and appearance of the bore.
| Identifier | ExFiles\Box 36\1\ scan 039 | |
| Date | 15th February 1916 | |
| R.R. 285.A (400 T) (S.C. 536. 15-2-16) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 1546. EFG X. 2807 - FLOW OF LIQUIDS THROUGH NOZZLES Nozzle | STATE OF BORE | APPEARANCE OF BORE | Length. A1 | 3/64 +1 | Good. | 1/2" | ✓ A2 | Bore taper 3/64 > 3/64 +1/2 | Good | 3/4" | ✓ A3 | one part of bore -.001 3/64 +1 | Poor | 1 1/2" | x A4 | one part of bore oval min. dia. approx. -.006 3/64 +1 | Bad | 2" | # B1 | 3/32 +1/2 | Good | 3/4" | ✓ B2 | 1 end -.001 1 end - 3/32 +1/2 | Good | 1 1/2" | ✓ B3 | 1 part of bore. dead size 3/32 +1/2 | Good | 2" | ✓ B4 | 1 part of bore -.002 3/32 +2 | Poor | 2 1/2" | x C1 | average d.{John DeLooze - Company Secretary} -1 | Slightly rough | 1 1/2" | x C2 | average d.{John DeLooze - Company Secretary} -2 | Poor | 2" | x C3 | average d.{John DeLooze - Company Secretary} -1 | Poor | 2 1/2" | x C4 | average d.{John DeLooze - Company Secretary} 0 | Slightly rough | 3 1/4" | x D1 | 1 part of bore - 3/16 -1 | Good | 2" | ✓ D2 | average 3/16 -1 1/2 | Good | 2 1/2" | ✓ D3 | average 3/16 -1 | Good | 3 1/4" | ✓ D4 | average 3/16 -1/2 | Slightly rough | 4 1/2" | x ed{J. L. Edwards} flack | ||