Rally Pilot Operating Handbook
Copyright 2008, Rally Aircraft
Revision 4.1
38
6.96 SPINS
INTENTIONAL SPINS ARE PROHIBITED
Should an inadvertent spin occur, the following recovery procedure should
be used:
1. Retard throttle to idle position
2. Place aileron in neutral position
3. Apply and HOLD full rudder opposite to the direction of rotation
4. Just AFTER the rudder reaches the stop, move the control stick
BRISKLY
5. forward far enough to break the stall
6. HOLD these control inputs until rotation stops
7. As rotation stops, neutralize rudder, and make smooth recovery from
the resulting dive.
6.97 ROUGH ENGINE OPERATION OR LOSS OF POWER
Spark plug fouling:
A slight engine roughness in flight may be caused by one or more spark
plugs becoming fouled by carbon or lead deposits. Proceed to the nearest
airfield for repairs. An obvious power loss in single ignition operation is
evidence of spark plug or ignition unit trouble.
Ignition malfunction:
A sudden engine roughness or misfiring is usually evidence of ignition
problems. Proceed to the nearest airfield for repair.
Low oil pressure:
If a loss of oil pressure is accompanied by normal oil temperature, there is
the possibility that the oil pressure gage or relief valve is malfunctioning.
A leak in the line to the gage is not necessarily cause for an immediate pre-
cautionary landing because an orifice in this line will prevent a sudden oil
loss from the engine sump. However, a landing at the nearest airfield
would be advisable to inspect the source of trouble. If a total loss of oil
pressure is accompanied by a rise in oil temperature, there is good reason
to suspect that an engine failure is imminent. Reduce engine power imme-
diately and select a suitable forced landing field. Use only the minimum
power required to reach the desired touchdown spot.
6.98 ELECTRICAL POWER SUPPLY SYSTEM MALFUNCTIONS
Introduction:
Malfunctions in the electrical power supply system can be detected by pe-
riodic monitoring of the voltmeter and over-voltage warning light. How-
ever the cause of these malfunctions is usually difficult to determine.
Broken or loose alternator wiring is most likely the cause of alternator fail-
ures, although other factors could cause the problem. A damaged or im-
properly adjusted voltage regulator can also cause malfunctions.