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Flight Instructors Training Procedures _revised AIC_x

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AIR EXERCISE BRIEFING<br />

EX 6: STRAIGHT AND LEVEL FLIGHT<br />

DEFINITION: Straight and level flight is that condition of flight whereby the aircraft is flown in balance at a<br />

constant altitude and direction at varying speeds, power settings and configurations with<br />

reference to both visual and instrument attitude indications.<br />

HOW IT APPLIES TO FLYING<br />

1) Navigation<br />

2) Circuit Work<br />

3) Forms the basis for attitude flying<br />

4) Instrument Flying<br />

5) Flying for range and endurance<br />

STEP ONE STEP TWO STEP THREE STEP FOUR<br />

STRAIGHT & LEVEL ATTAINING &<br />

MAINTAINING<br />

AIRMANSHIP<br />

• Lookout<br />

Other Aircraft<br />

Orientation in GFA<br />

Trimmed “HANDS OFF”<br />

• Smooth control inputs<br />

• FREDAS checks<br />

Briefly Discuss:<br />

1. Equilibrium<br />

• Thrust<br />

• Drag<br />

• Lift<br />

• Weight<br />

2. Correlation of:<br />

PWR + ATT = PERFORMANCE<br />

POWER CHANGE<br />

ATTITUDE CHECK<br />

SPEED HOLD<br />

TRIM ADJUST<br />

TRIM<br />

3. Lift Formula<br />

Correlation of:<br />

• AoA vs Airspeed.<br />

• Changes in nose attitude.<br />

• Use of Trim.<br />

4. Horizon as Primary attitude<br />

reference<br />

• Use of distinct focus point<br />

ahead of A/C to maintain<br />

direction.<br />

• Use of “Four Finger” attitude to<br />

maintain altitude.<br />

• Use of trim<br />

Elevator<br />

Rudder<br />

STRAIGHT & LEVEL REGAINING<br />

AFTER DISTURBANCE<br />

WIND DRIFT<br />

• Identifying drift direction using<br />

horizon reference point as indicator.<br />

• Application of co-ordinated aileron +<br />

rudder to turn into wind.<br />

• Stabilising A/C in new attitude.<br />

• Re-assessing drift correction.<br />

• Adjustments as required.<br />

Turbulence<br />

• Lateral and vertical disturbance.<br />

• Use of horizon reference to restore<br />

A/C to original position.<br />

• Use of elevator, aileron & rudder to<br />

achieve correction.<br />

• Retrim if required.<br />

ACHIEVING S&L AFTER CLIMB<br />

Attitude, Speed, Power, Trim<br />

ACHIEVING S&L AFTER DESCENT<br />

Power, Attitude, Speed, Trim<br />

*)*<br />

STRAIGHT & LEVEL<br />

CONFIGURATION CHANGES<br />

POWER CHANGES<br />

• Effect of slipstream & Torque.<br />

• Effect of speed changes.<br />

• Effect of CL changes.<br />

• Use of Trim.<br />

Configuration Changes<br />

• Effect of flap<br />

Attitude Change<br />

CL change<br />

Speed Change<br />

(NB. Use constant power<br />

setting)<br />

• Effect of flap & Power<br />

Effect of Altitude & Density<br />

Altitude<br />

• Less power available.<br />

• Terminal velocity change.<br />

• Less lift.<br />

• Higher nose attitude.<br />

• More lift induces drag.<br />

• Longer T’off distance required.<br />

• Longer landing distance<br />

required.<br />

• Flying for endurance<br />

• Flying for Range<br />

STRAIGHT & LEVEL INSTRUMENT<br />

INDICATIONS<br />

ATTITUDE INSTRUMENTS<br />

• Artificial horizon<br />

Indicates Pitch and Roll (bank)<br />

Indicates specific bank angle.<br />

• Turn co-ordinator<br />

Indicates balance.<br />

Indicates rate of change of<br />

direction.<br />

• Altimeter<br />

Indicates Altitude in 1000’ & 100’<br />

• VSI – Vertical speed indicator<br />

Indicates ROC<br />

Indicates ROD<br />

• Airspeed Indicator<br />

Indicates speed of A/C through the<br />

air.<br />

Can be adjusted for Density<br />

altitude to indicate true airspeed.<br />

• Tachometer<br />

(Revolutions per minute)<br />

Indicates speed of rotation of<br />

crankshaft.<br />

Indicates max RPM limit.<br />

May indicate RPM caution range.<br />

!"#$ # &"" '$ #

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