A det to NI in 1979 with a Wessex 3 (the blue and yellow one). We arrange to have it resprayed green so as not to stand out too like a sore thumb. Then the beancounters (even then) decreed it would be too expensive and we would just have to have it distempered (water based). On the subsequent paint flight test, of course, it rained and I had to fly back with the door wide open because the windscreen was green !