I flew into Bognor to see LEC on the 28 June 1966 in G-ATLT a Cessna U206A Super Skywagon it certainly was grass, had a curved and none too smooth surface. I think that they had an Aero Commander twin and were interested in buying a single. I thought that they bought a Helio Courier but will check. A very pleasant pilot.
LEC owned and operated the following aircraft from Bognor.
Aero Commander G-ASNJ. 10/66 - 8/68.
Cessna 401 G-AWDM 5/68 - 3/72
Islander G-BLEC 10/83 - 3/93
Perhaps others can complete the list.