Post Start Key Activities & Checklists

Taxiing

Nose wheel positive control to 15 degrees, free turning 15 to 55 degrees

Steering aided by rudder, differential power and differential braking of the main wheels

Auxiliary pumps should be off for taxiing

To straighten the nose wheel use full opposite rudder and differential power rather than differential braking.

Do not exceed 1600 RPM when engine is cold.

Before Take Off

Use the check list

Full throttle checks are not recommended

Ignition drop in excess of 125 RPM each or 50 RPM differential- warm up for longer. At 1700 RPM these drops are not acceptable for a warm engine. Check generator at this setting also.

Vacuum minimum = 4.75” Hg; maximum = 5.25” Hg.

1. Auxiliary fuel pump on low
2. Transponder to ALT
3. (Landing Lights ON)

Take Off to 500’

Closely observe full engine power early in the take off run.

Signs of rough running, unequal power or sluggish engine acceleration are good cause for discontinuing the take off.

Take off with flaps retracted.

Obtain single engine control speed (76 KIAS) as soon as possible.

Accelerate to 87 KIAS while still on the ground. Once 87 KIAS is reached continue with the take off.

TO OBTAIN MAXIMUM ENGINE POWER, ADJUST THE FUEL FLOW DURING THE INITIAL TAKE OFF RUN TO THE FIELD ELEVATION BLUE MARKINGS. (Especially above 5000’)

After take off it is important to maintain the minimum safe single engine climb speed. (87 KIAS)

The best single engine rate of climb speed is 103 KIAS.

After obstruction height is reached, power may be reduced and climb speeds established.

On long runways the landing gear should be retracted at a point on the runway where a wheels-down landing would become impractical.

On short runways retract the landing gear at 87 KIAS.

Use 15 degrees of flap only for short runways – lift the nose wheel at 56 KIAS then level off and accelerate to 87 KIAS.

Crosswind should use minimum flap settings.

1. Backpressure at 76 KIAS
2. Break ground (abort speed) 87 KIAS

After Take Off

• Retract the landing gear (touch brakes slightly first)
• Adjust power for climb
• (Retract the flaps at a safe altitude and speed)
• Turn off the auxiliary fuel pumps
• Adjust the mixture for the power setting selected

A normal after take off power setting is 24” 2450 RPM.

1. Positive rate of climb – touch brakes, gear up
2. Accelerate to 103 KIAS then 113 KIAS
3. 500’ – Auxiliary pumps off – one at a time
4. Climb out 24”, 2450 RPM
5. 113 to 122 KIAS
6. (Max rate of climb = 2625 RPM & 113 KIAS)

Climb

Cruising climb is 24” 2450 RPM (approx. 75% power)

Speed 113 to 122 KIAS is recommended.

Fuel flow mixture should be leaned

1. Climb out 24”, 2450 RPM
2. 113 to 122 KIAS
3. (Max rate of climb = 2625 RPM & 113 KIAS)

Cruise

Normal cruising is done between 60% and 70% power.

Cruising may be 23” 2350 RPM (approx. 65% power)

Synchronise the engines using propellor pitch.

Fuel flow should be leaned

Burn one hour of fuel from the main tanks before switching to auxiliary.

1. Cruise max 24”, 2450 RPM
2. Cruise min (normal) 23”, 2300 RPM

Let Down

1. Reduce power to maintain cruising airspeed
2. Mixture full forward

Before Landing

Attempt to balance fuel tanks

Use the main tanks for take off and landings

Check the gear is down before landing

Ensure pitch and mixture levers are full forward for landing

1. Fuel selectors on main and their own engine
2. Mixture full forward
3. Turn on auxiliary fuel pumps
4. Check induction air is COLD
5. Below 140 KIAS lower flaps to 15 degrees
6. Below 122 KIAS lower landing gear (check for green)
7. Propellor pitch full forward (2625 RPM)
8. Below 122 KIAS lower flaps from 15 to 45 degrees
9. Approach field at 91 KIAS with or without power

Landing

Ease power off cautiously if power is used for landing.

Short field landings are done with 45 degrees flap and 74 to 87 KIAS using as little power as possible

Land on main wheels first

Go Around

Apply full throttle and increase engine speed to 2625 RPM

(Gear up)

Reduce flap to 15 degrees

Trim aircraft for climb

Retract flaps as soon as possible given safe altitude and airspeed

After Landing

Leave flaps down for the full landing roll

Turn off auxiliary fuel pumps for taxiing

1. Retract flaps
2. Turn off auxiliary fuel pumps
3. Transponder to STBY
4. Avionics off
5. Stop engines using mixture ICO
6. Turn ignition off
7. All switches off
8. Secure aircraft