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).
Table of pre-test and post-test measurements for Aerolite piston profiles.
| Identifier | ExFiles\Box 83\1\ scan0282 | |
| Date | 26th June 1936 | |
| Unit N. B.22. AEROLITE PISTON PROFILES IDENTIFICATION N.:- M.9. TABLE DATA PISTON 1 RELIEVED PORTION: POSITION | NEW | AFTER TEST | VARIATION A | 3.4818 | 3.4822 | +.0004 B | 3.4801 | 3.4807 | +.0006 C | 3.480 | 3.4803 | +.0003 D | 3.4818 | 3.4829 | +.0011 E | 3.486 | 3.4858 | -.0002 BEDDING PORTION: POSITION | NEW | AFTER TEST | VARIATION A1 | 3.4818 | 3.4832 | +.0014 B1 | 3.4801 | 3.4803 | +.0002 C1 | 3.4798 | 3.4801 | +.0003 D1 | 3.4958 | 3.4954 | -.0004 E1 | 3.500 | 3.4997 | -.0003 PISTON 2 RELIEVED PORTION: POSITION | NEW | AFTER TEST | VARIATION A | 3.480 | 3.4802 | +.0002 B | 3.480 | 3.4801 | +.0001 C | 3.480 | 3.4802 | +.0002 D | 3.4822 | 3.483 | +.0008 E | 3.4878 | 3.487 | -.0008 BEDDING PORTION: POSITION | NEW | AFTER TEST | VARIATION A1 | 3.480 | 3.4806 | +.0006 B1 | 3.4798 | 3.4802 | +.0004 C1 | 3.480 | 3.4801 | +.0001 D1 | 3.4958 | 3.4953 | -.0005 E1 | 3.500 | 3.4998 | -.0002 PISTON 3 RELIEVED PORTION: POSITION | NEW | AFTER TEST | VARIATION A | 3.4815 | 3.4822 | +.0007 B | 3.4797 | 3.4801 | +.0004 C | 3.4793 | 3.4808 | +.0015 D | 3.4822 | 3.4831 | +.0009 E | 3.4877 | 3.487 | -.0007 BEDDING PORTION: POSITION | NEW | AFTER TEST | VARIATION A1 | 3.4816 | 3.4824 | +.0008 B1 | 3.4797 | 3.480 | +.0003 C1 | 3.4793 | 3.4799 | +.0006 D1 | 3.4957 | 3.4953 | -.0004 E1 | 3.4997 | 3.4996 | -.0001 PISTON 4 RELIEVED PORTION: POSITION | NEW | AFTER TEST | VARIATION A | 3.482 | 3.483 | +.0010 B | 3.4804 | 3.4812 | +.0008 C | 3.4801 | 3.4808 | +.0007 D | 3.482 | 3.4837 | +.0017 E | 3.487 | 3.4863 | -.0007 BEDDING PORTION: POSITION | NEW | AFTER TEST | VARIATION A1 | 3.4821 | 3.4832 | +.0011 B1 | 3.4804 | 3.4807 | +.0003 C1 | 3.4802 | 3.4802 | NIL D1 | 3.4957 | 3.4952 | -.0005 E1 | 3.4998 | 3.4999 | +.0001 PISTON 5 RELIEVED PORTION: POSITION | NEW | AFTER TEST | VARIATION A | 3.4821 | 3.4828 | +.0007 B | 3.4818 | 3.4827 | +.0009 C | 3.481 | 3.482 | +.0010 D | 3.4821 | 3.4834 | +.0013 E | 3.4865 | 3.4862 | -.0006 BEDDING PORTION: POSITION | NEW | AFTER TEST | VARIATION A1 | 3.4821 | 3.483 | +.0009 B1 | 3.482 | 3.4826 | +.0006 C1 | 3.4814 | 3.4812 | -.0002 D1 | 3.4958 | 3.4956 | -.0002 E1 | 3.500 | 3.5005 | +.0005 PISTON 6 RELIEVED PORTION: POSITION | NEW | AFTER TEST | VARIATION A | 3.4797 | 3.4802 | +.0005 B | 3.4795 | 3.4807 | +.0012 C | 3.4797 | 3.4808 | +.0011 D | 3.482 | 3.484 | +.0020 E | 3.4876 | 3.4876 | NIL BEDDING PORTION: POSITION | NEW | AFTER TEST | VARIATION A1 | 3.4798 | 3.4808 | +.0010 B1 | 3.4796 | 3.4803 | +.0007 C1 | 3.4797 | 3.480 | +.0003 D1 | 3.4957 | 3.4953 | -.0004 E1 | 3.4999 | 3.4998 | -.0001 | ||