In order to ensure enough time to typeset and layout the New Chinnor Pump, we'd prefer to get any contributions and submissions in as soon as possible. Please send your submission before the penultimate Wednesday of the month. Here's a calendar for easy reference:
| MONTH | DEADLINE DATE |
| December 2025 | 19th November 2025 |
| January 2026 | 24th December 2025 |
| February | 21st January |
| March | 18th February |
| April | 18th March |
| May | 22nd April |
| June | 20th May |
| July | 24th June |
| August | 22nd July |
| September | 19th August |
| October | 23rd September |
| November | 21st October |
| December | 18th November |
| January 2027 | 23rd December |