john smith wrote in news:Cgh%c.81922$cT6.12543
@fe2.columbus.rr.com:

For those of you using handheld GPS's when you fly IFR:

Do you use the throttle to increase/decrease power to match the ground
speed to the approach speed table so the time is correct to the MAP?

Or,

Do you use the distance to the airport to determine/verify the MAP, even
though the time may not have expired?


The MAP time is an indirect way to measure distance. If you can measure
distance directly, why would you still choose the indirect method?

Of course, since the handheld is not an IFR approved device, you will have
to exercise some caution during approaches. What I would recommend is, do
the timing as if you didn't have the GPS, and then verify that it agrees
with the MAP shown on the GPS when the clock winds down to zero.