Control Release Spin

CHAPTER TWO

T-34C OUT-OF-CONTROL FLIGHT

Recoveries initiated during the reversal phase were evaluated by NATC to determine the

optimum recovery technique to be used in the event of intentional or inadvertent progressive spin

entry. Both neutral control and NATOPS anti-spin control techniques were used to effect

recoveries initiated up to 2 1/2 turns after the reversal of spin direction. Recovery using the

NATOPS anti-spin technique was slightly more rapid than use of neutral controls, but was also

qualitatively evaluated as having the potential for entry into a second progressive spin. In the

event of inadvertent progressive spin entry, neutralization of the controls will result in

sufficiently rapid recovery without disorientation effects to the pilot. The neutral control

technique should be applied while assessing the aircraft's flight condition. In the event recovery

has not occurred within two turns, applying the proper NATOPS anti-spin controls will affect a

rapid recovery. Minimum entry altitude for a Progressive Spin maneuver is 9000 feet AGL.

NOTE

Both the Anti-Spin Recovery Procedures listed below and the

NATOPS OCF Recovery Procedures should be practiced by the

IUT.

Procedures

Perform the procedures for a normal, erect spin entry in either direction.

After two turns, smoothly apply full rudder opposite the direction of turn needle

deflection while continuing to hold full back stick.

Continue to hold these control inputs until the aircraft has stabilized in a Steady-State

Spin opposite the initial spin direction. Recover in accordance with the NATOPS

Out-of-Control Recovery Procedures or proceed as follows:

Apply full rudder opposite the turn needle.

ii.

Position the stick forward of neutral (ailerons neutral).

iii.

Neutralize the controls as rotation stops.

iv.

Recover from the ensuing unusual attitude.

203. CONTROL RELEASE SPIN

Discussion. This maneuver is introduced to thoroughly familiarize the IUT with the erect

spin characteristics and cockpit indications of the T-34C. In this maneuver, the aircraft is

established in a Steady-State Spin in either direction and the controls subsequently released. The

rudder pedals will float near the neutral position and the stick will remain near the full aft

position. AOA, airspeed, altimeter, turn needle, and VSI are scanned for erect spin indications.

UNUSUAL ATTITUDES AND OUT-OF-CONTROL FLIGHT 2-3