On 11/13/2012 08:05 PM, graeme bird wrote:
> Interesting that compared to my new digital tacho that controls the
> VP prop, the rotax tacho over-reads by around 150rpm. Id trust the
> digital rather than the needle but I wondered if anyone else has
> found the same?
As far as I know it can be somewhat tricky to connect two tacho's at the
same time. It is a weird interface, nor digital nor analogue. You can't
trust either of them. If you really want to know, you'd better check the
rpm against a seperate rev counter on the prop and recalculate this to
engine RPM and see if it matches with any of your gauges.
> while mentioning needles - my flight sunday took me past a couple.
Very nice! I presume this was in the UK? Is this near land's end?
Frans
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