DMAC Four Point Roll

The Four Point Roll.

Aresti Diagrams High Angle Of Attack Loop Roll's Inverted Bunt The Immelmann Split S The Reversal The Stall Turn The Spin Knife Edge Four Point Roll Humpty Bumps Cuban Eights Slow Roll Vertical Eight Four Point Rolling Circle Rolling Circle Rolling Loop Rolling Circle And Loop

Once you have mastered the Knife Edge and Inverted Flight , you can use these manoeuvres for a four point roll.

The Four Point Roll is an Axial Roll but the manoeuvre is interupted at each quarter roll point.

Enter the manoeuvre with plenty of speed and power and quarter roll into knife edge. If you roll to the right then input left rudder to hold the nose up. Try and keep the knife edge straight and at constant height. Hold this position for a moment then continue the roll to the inverted position with another quarter roll and hold in down elevator to maintain height. Again after a moment, execute a third quarter roll to go into knife edge and hold. Note that this time, the direction of rudder input is the same as the rolling direction ie. if you are rolling to the right, then input right rudder. This makes sense because, for example, three quarter left rolls equals one quarter right roll. Finally, quarter roll to upright.

Aresti Diagram

The co-ordination required for this manoeuvre is fairly tricky to learn and requires a fair amount of patience (and a lot of height!).

Briefly, the control inputs required for a clockwise and anti-clockwise Four Point Roll are:

Clockwise (illustrated):	Anti-Clockwise:
Start	Start
Right Aileron - quarter roll	Left Aileron - quarter roll
Left Rudder - hold	Right Rudder - hold
Right Aileron - quarter roll	Left Aileron - quarter roll
Down Elevator - hold	Down Elevator - hold
Right Aileron - quarter roll	Left Aileron - quarter roll
Right Rudder - hold	Left Rudder - hold
Right Aileron - quarter roll	Left Aileron - quarter roll
Finish	Finish

Aerobatics