Keith & Derek were at the field. The weather was a bit overcast with light winds down the strip. Keith flew his electric Tundra and Mignon. Keith found that he had the expo set up wrong he had it programmed as a negative figure and it should of been a positive figure. After changing it it flew much better and a lot less twitchy! Derek flew his Multiplex Rockstar (biplane) which flys really smoothly. He tried his multiplex 2.5mt Heron motorised glider but had some motor problems on the preflight checks so didn’t fly it, back to the hanger for some investigation!