| RefNo | MS/525/6/4/2 |
| Level | Item |
| Title | Letter from Joseph Ernest Petavel, 9 Brighton Grove, Rusholme, Manchester, to Dugald Clerk |
| Date | 5 December 1914 |
| Description | Arranging to meet Clerk to discuss the design of the 'creeper'. A thought has occurred to him with regard to question 4. The greater the hydrostatic pressure around an explosion, the greater the weapon's range of action would be. A submerged submarine would be less able to survive shock. Any weapon should be exploded under the surface, either for a surfaced or submerged submarine. A firing device based on pressure should be possible. |
| Extent | 4p |
| Format | Manuscript |
| AccessStatus | Open |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8267 | Petavel; Sir; Joseph Ernest (1873 - 1936); engineer and physicist | 1873 - 1936 |