by Jonathan M. Stern
The Immelmann, named after German war ace Max Immelmann, is somewhat the opposite of the Split S. The maneuver begins with a half loop and is followed by an aileron roll to return to cruise flight in the opposite direction of initiation and at a higher altitude (see Figure 8.8).
Figure 8.8 A left (shown here) or right view is necessary to determine the top of the loop during an Immelmann.
The maneuver was used to escape another aircraft in a dogfight.
The following steps are used to enter an Immelmann:
- Turn off Auto Coordination from the Sim menu.
- Climb to 6,000 feet AGL or use the World/Set Exact Location menu to place the airplane at 6,000 feet.
- Establish cruise flight (flaps and gear retracted).
- Dive to accelerate the airplane to 180 knots.
- Smoothly apply up elevator until the elevator is 75 percent of the way up.
- Apply full throttle when you see nothing but sky in the windscreen.
- Use left or right view to maintain orientation until you are at the top of the loop; then return to forward view.
- At the completion of 1/2 of the loop (when the airplane is inverted), neutralize the elevator.
- Apply ailerons to roll toward rightside up attitude.
- As the airplane approaches level, neutralize the ailerons.
- Pitch for level flight.
The following steps are used to recover from an Immelmann:
- Maintain straight and level flight.
- Accelerate to cruise airspeed.
Lesson: Aerobatic Category (Lesson 6)