| Status: | Active, open to new members |
| Leader: | |
| When: | 2nd Tuesday of the month at 2pm |
| Venue: | Our Lady's Church hall |

This is a joint group with Watford and SW Herts, but it is hosted by Rickmansworth u3a. The programme is a mixture of talks in Our Lady's church hall and visits to locations important to our engineering heritage. All members are welcome to the meetings, with a £3 charge at the door to cover the cost of the speaker and tea/coffee.
2pm, Tuesday 09 June
"The Development of Helicopters" – by Duncan Bickley
2pm, Tuesday 14 July
"The Heritage of the Waterways" – by Fabian Hiscock
August - no meeting
2pm, Tuesday 08 September
"Amazing Inventions of the Industrial Revolution" - by Alan Fitzgerald