OK, point well taken. However, if a "temperature gauge for each
liquid-cooled engine" is required, but an "oil temperature gauge for each
air-cooled engine" is likewise a requirement, one can assume that the FAA is
not going to accept an oil temperature gauge alone on a liquid cooled
engine, which leaves us to ponder whether EGT or CHT would satisfy the FAA.
It might, but prudence would suggest that coolant temperature should be
measured on a liquid cooled engine with the probe low enough in the system
to always be immersed in coolant (as opposed to those old Austin Healeys
where it was at the top of the radiator!).
Perhaps someone who has experience with the FAA or PFA (or others) on this
issue, could give us a more official answer than my speculation.
Best regards,
Rob Housman
A070
----- Original Message -----
From: "ami mcfadyean" <ami@mcfadyean.freeserve.co.uk>
<shauns@hevanet.com>; <europa@avnet.co.uk>
Subject: Re: What Engine Instruments do you need/use on a Rotax
914?
>
> -----Original Message-----
> From: Rob Housman <ROB-HOUSMAN@worldnet.att.net>
> >Coolant temperature is definitely required (see section (b) (6) of the
FAR
> >reproduced here in its entirety for day VFR ops):
>
> >(6) Temperature gauge for each liquid-cooled engine.
>
>
> That doesn`t specifically imply coolant temperature.
>
> Duncan McFadyean
>
>
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