 In spite of this success , it was clear the Blenheim was simply not going to work as a fighter . On several occasions the CH stations directed the fighters to a successful radar capture , only to have the target slowly pull away from the fighter . In one case the Blenheim was able to see the target , but when it spotted them the aircraft increased power and disappeared . From 1 to 15 October 1940 Mk . III @-@ equipped fighters from RAF Kenley made 92 flights , performed 28 radar interceptions , and made zero kills . 
