Exercise 14 – Spiral Dive

In this lesson you will practice the recovery procedures from spiral dives. You may also practice different types of slips, their entry procedures and recovery procedures.

Planned Activities

• Exercises 14, maybe 15

Reference Material

• VTA/VNC

• FTM

• Pilot Operating Handbook

Preparation

• Review exercises in FTM to understand different types of slips.

• Review the airspace around your airport using a VTA/VNC.

• Be able to answer the following questions:

1) What is the difference between a spin and a spiral dive?

2) What are some scenarios that can lead to a spiral dive?

3) Define Va.

4) What happens to the stall speed as bank is increased?

5) What is the proper recovery procedure for a spiral dive?

6) How do we recognize a spiral dive? What will you visually see outside and on the instruments and what will you feel?

• Write down your questions!

Tips/Rules of Thumb/Theory

• A spiral dive is associated with rapidly increasing airspeed and a rapid decrease in altitude

• When pulling out of a dive during a spin or spiral dive recover, level the wings first to prevent further tightening and aggravating the manoeuvre.

• The airplane will recover to wings level faster if using co-ordinated aileron and rudder

• A good rule of thumb is to wait until there is a slight nose up attitude and cruise speed or lower before adding power to recover and begin climbing. This helps prevent excessive engine RPM.

All of this information on pilot training and flight training in Canada is also available at www.myflighttraining.ca.

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