Reference points that may be used to keep the aircraft from changing altitude while inverted are:
Front Cockpit = OAT gauge on or about even with the horizon.
Rear Cockpit = The middle canopy bow on or about even with the horizon.
Your instructor will be pointing out this attitude as well as watching the oil pressure and clock to
remain within limits. Ensure the rudder pedals are within reach in this attitude. Since you will
not be flying this maneuver, you can crank the rudder pedals towards you.
This is a "demonstrate only" maneuver and shall not be performed by
CONFIGURATION: Establish the aircraft at 150 KIAS in the clean configuration.
CHECKLIST: Perform the Aerobatic Checklist. CLEARING TURN: Perform a
clearing turn and roll out on a suitable section line
Raise the nose to place the exhaust stacks on the horizon and roll the aircraft in either
direction using rudder and aileron to the inverted position. Once inverted neutralize
aileron and rudder and utilize slight forward stick pressure to maintain altitude.
Immediately note the clock sweep second hand and check the oil pressure. Return to
normal flight immediately if oil pressure is not in the normal range.
Prior to 15 seconds inverted, utilize coordinated aileron and rudder to roll the aircraft
back to the upright flight attitude. Recheck the oil pressure in the normal range.
Failure to maintain straight-and-level flight while inverted.
Poor coordination of control inputs during the roll to the inverted and/or upright
11-20 AEROBATIC MANUEVERS