Categories Five power categories are flown in the U.S. (and other countries that adopt the U.S. model). They vary by difficulty of the individual aerobatic maneuvers they contain, as well as the combination of those maneuvers within the sequence. In order of increasing difficulty, the power categories are: Primary (elsewhere Club ) Sportsman (elsewhere Sports)  Intermediate/Yak-52 Advanced  Unlimited
Categories Five power categories are flown in the U.S. (and other countries that adopt the U.S. model). They vary by difficulty of the individual aerobatic maneuvers they contain, as well as the combination of those maneuvers within the sequence. In order of increasing difficulty, the power categories are: Primary (elsewhere : Club, Espoir ) Sportsman (elsewhere Sports) ; earlier in the UK "Standard". Intermediate/Yak-52 Advanced , Avancee Unlimited
R
Club
: Club, Espoir
A
; earlier in the UK "Standard".
A
, Avancee