I had a problem with my PV-50 Propeller and CSC-1 Controller yesterday, and
whilst
researching it on the forum, came across the posts below, which are the nearest
to the problem I experienced. My Europa has approx 60 hours on the Prop,
but the Prop was purchased many years ago (don't know the exact date but judging
---From the documentation probably not long after 2000). It has been performing
as expected since installation.
After take-off, and switching from TKO to CLM Mode, I noticed that the engine
RPM
remained near maximum, and looking at the reading on the CSC-1, it was
displaying
40%. I tried changing to MAN mode but couldn't increase or decrease the
Pitch. I throttled back to reduce the RPM, but this impeded my ability to climb.
As it was a short flight, and I could maintain height, albeit at a slower
speed than I normally fly, I continued at low level to my destination. Once I
landed, (and at reduced RPM i.e 2500) the Pitch Controller functioned again
through
the full range.
90 minutes later the Prop and Controller functioned through the full range in my
pre-flight checks, but exactly the same thing happened following climb out,
and all the way back home. I did notice a small change in the CSC-1 Pitch
readout
the closer I got to home, but can't recall if this was as I throttled back
in the approach. Back on terra firma, the Prop again functioned through the full
range.
So it would seem the Pitch will alter at pre-flight RPM (2500-400), but not at
5000+
I didn't have time on my return to inspect the electric motor assembly, but plan
to do this in the next day or so. Apart from cleaning and re-greasing the worm
assembly, and checking again the full range of movement, has anyone any further
suggestions, or potential explanations as to why this could happen ?
--------
Bob Dawson
Europa XS TG || 912 ULS || G-NHRJ || Dynon Skyview || PilotAware || SmartAss3
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