Peter Ashwood-Smith <petera@nortel.ca> a écrit dans le message :
91goh5$1ob$1@bcarh8ab.ca.nortel.com...
> Well, it finally warmed up to just a few degrees below zero
> today so I decided to have a shot at flying the Pitts off a
> snow and ice covered runway. Turned out to be a piece of cake.
> A bit like landing a Pitts on grass, hard to judge height without
> clear edges. Oh, I took the wheel pants off as advised by
> many folks out there.
>
> One thing that is practically impossible is to do a proper
> run up. At anything slightly over idle you are moving forward.
> I wound up doing a moving runup ... tricky.
>
> I did notice however one thing that disturbed me. The oil
> pressure showed some rather significant fluctuations as I
> came off the power, say from 50% to 25% on final. It was
> jumping from 60psi to 40psi and it has never done this
> before. It showed rock solid 70-80psi both right side up
> and inverted at full power and only did this jumping around
> on final. I'm guessing it may be the oil is too thick
> and I'll have to go to a less vicsous grade but am open
> to suggestions as to what to look for.
>
> Cheers,
>
> Peter Ashwood-Smith
> Pitts S-1T C-GZRO
>
Peter what kind off winter kit did you install ?if you use 15/50 should be
no problem, I notice that the oil ave to be up to180/190 'to be on safe
side. Norm.

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