Van's Aircraft RV-7A, Flight Manual

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Airplane Flight Manual HB-YMT
01/00 Emergency Procedures 3–9
3.5.2 Alternator Failure
1. VP200 EMERGENCY ......................................... SELECT “ALT FAIL”
2. VP200 ...................................................................... LOAD SHED VMC
The VP200 will ask whether IMC or VMC conditions are
present. Simply select either, as both load-shed tables are
configured the same.
Also, this may take up to 30seconds, as the system tries
resetting the Alternator field first.
3. Land..................................................................................................... ASAP
Essential power for at least Essential power for at least Essential power for at least Essential power for at least 40 40 40 40min of flight is deemed min of flight is deemed min of flight is deemed min of flight is deemed
available.
available. available.
available.
NOTE - An Alternator failure will be primarily recognizable by a lower
than normal bus voltage. (<12.8VDC)
- The VP200 does NOT automatically initiate any action,
although it alerts about the lower than normal bus voltage.
- The VP200 is preconfigured for easy load shedding.
- However at all times, manual control over each device is
possible.
By default, the following devices will continue to be
powered by the main system:
- AOA
- COM1
- XPDR
- IGN L& R (Self powered during flight down to appx
800 rpm)
- Trim, Flaps and Boost Pump
Actual load on the electrical system is always displayed by
the VP200 and is expected to be less than 5A in this
configuration.