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Tom,
My Dynon Skyview passes the certification, is IFR legal and is not TSOd to anything.
That sums up what I needed to know in a nutshell. Thanks.
I re-read Brent's post from a few months ago while reading several references I received from another builder off-list (thanks Jim!) and things made more sense.
Gary
-----Original Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Tom Thibault
They don't have to have any pointers. An altimeter has to pass the biennial check conducted by a tester licensed to conduct the test in order to use it in IFR. Pretty sure that a mechanical instrument with less than three pointers can't pass because you can't read it down to the tens of feet. Electronic presentation of the altitude is fine.
My Dynon Skyview passes the certification, is IFR legal and is not TSOd to anything. Pretty sure that Brent has covered this thoroughly before.
Most equipment needs to meet a performance requirement. A few, like GPS, must actually be TSO'd to be used for IFR navigation. Especially for GPS, the allowed IFR operations are defined in one or more of the GPS TSOs.
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