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).
Page from a report with formulas for calculating boiling points at different altitudes.
| Identifier | ExFiles\Box 87\1\ scan0096 | |
| Date | 24th September 1934 guessed | |
| -2- But t1 + To = 100 ∴ t1 = 100 - To ∴ T = B - (100 - To)/d Hence, from this formula, for any given set of conditions the air temp. to boil at any altitude may be found, knowing the air temp. to boil at sea-level. Attached are three sheets - one showing variations of boiling point, air temperature and relative air density with altitude, the next showing variation of temp. to boil figure with altitudes, for three different cases, and the third showing variation of seal level air temperatures necessary for boiling to take place at given altitude. HS{Lord Ernest Hives - Chair}/Std. | ||