pilots only, please - gps or altimeter?

Timmay writes:

I'd be curious to have someone explain to me how GPS altitude
information is so inaccurate that I risk my life by setting my
altimeter with it.

A safer policy is to ask people to prove that GPS is accurate enough
to bet your life on it.

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"Mxsmanic" wrote in message
...
Timmay writes:

I'd be curious to have someone explain to me how GPS altitude
information is so inaccurate that I risk my life by setting my
altimeter with it.

A safer policy is to ask people to prove that GPS is accurate enough
to bet your life on it.


We have the FAA certifies GPS receivers for Instrument approaches for both
horizontal and vertical guidance.

Mxsmanic wrote:
Timmay writes:

I'd be curious to have someone explain to me how GPS altitude
information is so inaccurate that I risk my life by setting my
altimeter with it.

A safer policy is to ask people to prove that GPS is accurate enough
to bet your life on it.

You have to mean VFR, since IFR requires an altimeter. Thus your
statement is ignorant hogwash. VFR is safe in good visibility
without even an altimeter.

F--

Gig 601XL Builder writes:

We have the FAA certifies GPS receivers for Instrument approaches for both
horizontal and vertical guidance.

Which categories of instrument approaches, and with or without WAAS or
LAAS?

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TxSrv writes:

You have to mean VFR, since IFR requires an altimeter.

No. Some people assert that GPS can provide the altimeter function.

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