RE: Pattern vs Aerobatic
The sequences are quite different as well. Pattern sequences will remained unchanged for several years. IMAC gets a new sequence for each class every year. In the Sportsman and above IMAC there are unknown sequences. What happens is that on Saturday after the days flying is done you will get the unknown sequence and are expected to go home or to the hotel and work it out with a stick plane. The first time you ever fly the sequence on Sunday you will be scored on it. The manuevers are different as well in pattern there ate no fractional snaps. rolls or rolling circles. IMAC manuver catalog originated from full scale aerobatics.
Shawn Berkheimer
R/C Blimp Productions.com