| Churchill/MCRA 5 contains: |
|---|
| <-- See earlier |
|---|
| 34 |
Switch no. 9 ('L' Delay) |
| 35 |
T V Switch: long delay, short delay |
| 36 |
Switch no. 12 (Anti-Lift Device) |
| 37 |
Switch no. 13 (Universal Switch) |
| 38 |
Royal Commission on Awards to Inventors: claims of Macrae and others in respect of Switches 1, 2, 3, 8, 12, 13 |
| 39 |
Royal Commission on Awards to Inventors: claims of Macrae and others in respect of Switches 1, 2, 3, 8, 12, 13 and 'L' Delay |
| 40 |
Switches 1, 2, 3, 8, 12, 13 |
| 41 |
PIAT: Nose Initiation |
| 42 |
PIAT: Centre Cocking |
| 43 |
PIAT: Cartridge |
| 44 |
Igniters, Detonators and Signal Flashes |
| See later --> |
|---|
|
The Papers of Colonel R S Macrae
| Title |
Air Pressure Switch |
| Reference |
MCRA 5/29 |
| Covering Dates |
Dec 1933-Mar 1953 (The dates given are for the originals which the copies were taken from at a later date.) |
| Extent and Medium |
1 file |
|
| Content and context |
Copies of Crown documents and design drawings for Macrae's patent application on the switch (also known as the Aero Switch), designed to sabotage enemy aircraft by firing an explosive charge once a certain height was reached. |
| No further on-line information. |
|
![[Home]](/images/logo.gif){kind=logo}
