5.4. TAXIING
1. Parking brake: Release
2. Brakes: check
3. Flight instruments: check altimeter.
Alternator lights may appear when reducing engine RPM below 950 RPM (yellow
arc). The light will stay ON until RPM is increased above.
During taxi, it is recommended to maintain propeller speed at 1000RPM or above in
order to preserve a full loaded battery, minimise annunciator nuisance and assure max-
imum battery performance during flight.
Following extended operation on the ground, or at high ambient temperatures, the
following indications of fuel vapor lock may appear:
- Arbitrary changes in idle RPM and fuel flow;
- Slow reaction of the engine to operation of throttle;
- Engine will not run with throttle in IDLE position.
Solution:
1. For about 1 to 2 minutes, or until the engine settles, run at a speed of 1800 to
2000 RPM. Oil and cylinder head temperatures must stay within limits.
2. Pull throttle back to IDLE to confirm smooth running.
3. Set throttle to 1200 RPM and mixture for taxiing, i.e., use mixture control lever
to set the maximum RPM attainable.
4. Immediately before the take-off run set the mixture for take-off, apply full throt-
tle and hold this position for 10 seconds.