The band of 1084 (Market Harborough) Air Cadets Squadron took another step on the way to defending their title.
They won every class they entered in the regional contest of the National Marching Band Championships at RAF Wittering in Cambridgeshire.
The percussion and fanfare sections won their classes and for the first time the band will now compete in three sections at the national finals, which it won in 2011 and 2012.
Sgt Steph Bidwell and Corp Danny Tomlinson also did well in the individual sections of the contest.
Commanding officer Flt Lieutenant Valerie Smith said she was pleased that all of their efforts had been rewarded.