Updated as and when I get dates Let me know if you know of any other.
5th
BMFA South Eastern Area Indoor Meeting
K2 Crawley
24th - 26th
Brighton Modelworld
Brigthion Center
23rd - 24th
Wings and Wheels
North Weald Airfield, Epping, Essex, CM16 6AR
16th-17th
Western Park International ModelAirshow
http://www.westonparkmodelairshow.co.uk/
12th & 16th
Hop Farm Kent