| President |
National Society for Clean Air |
2005- |
| President |
Institute of Maths and its Applications |
1993-96 |
| Branch Secretary (Leatherhead and Guildford) |
Electrical Power Engineering Association |
1990- |
| Secretary General and Chair of Research Committee |
European Research Community for Flow Turbulence and Combustion |
1988-91 |
| Chair of Governors |
Chesterton Community College, Cambridge |
1971-85 |