With the hydraulics defaulting to
on when electrical power is
off could make for an even more interesting flight, should you have a servo fail at the same time as an electrical failure.
[This is just an observation as I realise the odds of that happening are very low.]
Normally, a hydraulic warning light on a Raven would have the same effect as having an engine out warning light. It will tell the pilot what he already knows.
In helo's that use
dual hydraulic systems, the warning light for each system does serve a purpose.
A lot of aircraft systems have an electrical auxillary pump installed which act as a backup in case of main pump failure or for activating systems when the aircraft is not operating.
Can anybody enlighten me as to why helicopters dont use aux hyd. pumps?
