Hello, I removed the spinner, I looked inside, I located and identified the latch, understood the whole process and lo and behold, set the prop into cruise position on the ground, then did the same in midair. Boy am I grateful to you all :-)
Best regards Jarek pon., 15 paź 2018 o 08:40 Martyn Cook <[email protected]> napisał(a): > Hello fellow aviators! > > One of the things that helped me to understand this pitch change thingy > was to have Ian Williams remove the prop spinner and show me the little > centrifugal latch that holds the prop in cruise pitch. > > From this I could see the approximate amount to pull the lever to give the > latch room to move outwards. Also, I realised what I was trying to make > happen, rather than blindly following a procedure for which I didn't > understand the reason. > > I can see that if you increase the pitch too much (pull the lever out too > far) this reduces the rpm, which makes the latch less likely to move > outwards. Also, if you start with insufficient rpm that would also make it > less likely to move. > > A further item is to check that the latch itself moves freely. A squirt > of CRC or WD-40 is what I use on mine. It needs to flip back and forth > quite freely. If it has been greased, or is running very dry, or has grit > or dust in it then any of these could make it more reluctant to move into > cruise mode. > > It's a neat little mechanism really. > > Cheers > Martyn > > -- > Martyn Cook > New Zealand > > > > On Sat, Oct 13, 2018 at 6:53 AM Jarek Steliga <[email protected]> > wrote: > >> > >> > >> Hello, > >> I am quite new here (have owned Dimona for only 3 months). > >> Despite scrupulously folliowing the instructions regarding the required > RPM-s of between 1800 to 1900 at which the propeller pitch is changed from > START to CRUISE in midair, I have only succeedded twice despite numerous > attempts. Also pulling the pitch lever in the cockpit results in scary > vibrations which discourages me from continuing my trial and error methods. > Can someone please help? > >> > >> Best regards > >> Jarek > >> > > > > >
