T-34C OUT-OF-CONTROL FLIGHT
The maneuver will be flown and recovered by the Standardization Instructor. In the power off
glide configuration, aircraft will be clean. Maneuver may be performed in either direction.
Minimum entry altitude for the maneuver will be 8000 feet AGL.
Configuration: Position the aircraft at a minimum of 8000 feet AGL in slow
cruise and clean configuration.
Perform Checklist and Clearing turn.
Roll wings level, then reduce the PCL to 205 ft-lbs. and slow to 100-knot glide
Establish the aircraft in a slip.
Once established, momentarily roll the aircraft toward 60° AOB while
maintaining 100-knot glide (note the aircraft still flies normally in the slip).
IUT should be watching AOA and airspeed.
Once reestablished in a normal slip, slowly (unaccelerated stall) decelerate the
aircraft while holding the slip. Note, that the aircraft stalls between 50 - 60
knots indicated and towards wings level. Execute OCF Recovery Procedures
and go back to 100-knot glide.
vii. Once reestablished at 100-knot glide, put the aircraft back into a slip in direction
of Clearing turn.
viii. Once reestablished in a slip, smoothly pull 1 1/2 - 2 "G's". Note, the stall speed
is higher than the unaccelerated stall (85 - 90 knots indicated). Aircraft still
stalls towards wings level. Execute OCF Recovery Procedures.
Climb back to altitude (minimum 8000 feet AGL), review checklist, and
Repeat procedures for skid without the roll toward 60° AOB. IUT should note
that stall speeds are about the same for both the skid and slip. The departure in
the skid though will be toward inverted (low-wing will stall first). OCF
Recovery Procedures will enable a recovery from each condition with minimal
loss of altitude.
The Rudder Swap Departure
Description: This maneuver demonstrates the departure characteristics of the aircraft
with a rapid increase in yaw rate.
2-20 UNUSUAL ATTITUDES AND OUT-OF-CONTROL FLIGHT