Hi Kevin, on a competition, is this something you do? Sounds like a great idea. I usually just take off, and as soon as I am in line, I call in the box, but what you just stated , i know is legal, but right before starting, sounds like a great way to get adjusted. The rule book states:
13. Time Limits:
13.1: The contestant has two (2) minutes to start his/her engine and become airborne. If after two (2) minutes the contestant is unable to start the engine, they will move to the end of the round rotation. If the contestant fails to start a second time, they shall receive zero for the round.
13.2: The contestant has one (1) minute from the time the wheels leave the ground during takeoff to enter the aerobatic airspace.
13.3: There shall be no time limit while in the aerobatic airspace.
13.4: The contestant has two (2) minutes between leaving the aerobatic airspace and touchdown for
landing, unless required to hold upon command from the appropriate official.
13.5: Prior to entering the aerobatic airspace, between sequences, and prior to landing, pilots shall only be allowed to perform the following trim and positioning maneuvers:
- Turns;
- Half Cubans with only a single 1⁄2 roll on the 45 down line;
- Reverse Half Cubans with only a single 1⁄2 roll on the 45 up line;
- The 1⁄2 roll is optional based on aircraft positioning required to enter the aerobatic airspace;
- Half loops up or down (Immelmann or Split S) with only one half roll on entry or exit;
SCA-8
- Single half roll to inverted immediately prior to entering the aerobatic airspace for the case in which an inverted entry to the first maneuver is required;
- Single half roll to upright immediately after exiting the aerobatic airspace for the case in which an inverted exit from the last maneuver is required;
- A vertical up or down line with a simple push/pull for entry and exit. A single 1/2 roll is allowed on this vertical line only if required to orient the aircraft properly for entry to the first maneuver.
Exceptions to this limitation may only be directed by the CD or line boss in the normal course of safely managing the airspace. Pilots will follow such directions and no penalty will apply.
Turnaround maneuvers may not be performed at low altitude or directly in front of the judges. No other aerobatic maneuvers are allowed immediately following the airplane breaking ground except for the Four Minute Freestyle. Any infraction shall result in a penalty of zeroing the round.
The intent here is to prevent anything that may be viewed as “practice” and hence give one competitor an advantage over another. Therefore, snaps, spins, point rolls, Humpty’s, Tailslides, etc, etc.... may never be executed after breaking ground and before entering the sequence, between sequences or after completing the sequence(s) and prior to landing.