TTN, agree, if I had the time and inclination I would plot put aircraft buys against part in power.
Nuclear weapons - labour
V-bombers - Tory
TSR2 - labour
F111 - labour
C130 -labour
F4 - labour
Buccaneer - labour
Nimrod - Tory all 4
E3 - tory
C17 - labour
Sentinel - labour
Then Tornado, Harrier, Jaguar, Typhoon, A400, Voyager
T
I think labour might have the edge but I don't know how many crossed party boundaries