Re: Backup Flight Data Recorder?

The GPSMAP 76S has the barometric sensor, at least OLC thinks so,
according to the online flight display.

Or is it the straight 76 that you bought?

I bought the GPSMAP 76 (there's also a straight GPS 76 but it's not
suitable for our purposes: not enough trackpoints, for one thing). The
GPSMAP 76S does have the baro sensor (as well as an electronic compass
sensor) but I'm not sure whether it's evident from the track log
whether the user locked out the auto-calibrate feature that slowly
adjusts the altimeter to GPS altitude to account for pressure changes.
I'm also not sure whether the track log records both pressure and GPS
altitudes. If the answer to these questions is yes (i.e., it's evident
if auto calibration is turned off and it records pressure altitude),
then the extra money for the GPSMAP 76C might be worth it. It's still
not an IGC $ecure flight recorder but it's the next best thing...at 1/5
or 1/6 the price.

Erik Mann (Papa3) was a great help during my evaluation of backup
flight recorders and is a lot more conversant with this subject (he's
even interacted with Garmin). As I mentioned earlier, I'm really
impressed with how much functionality you get for $150.

Chip Bearden
ASW 24 "JB"

.

Relevant Pages

  • Re: IFR use of handheld GPS
    ... GPS navigation equipment used must be approved in accordance with the ... Navigation Equipment for Use as a VFR and IFR Supplemental Navigation ... Visual flight rules and hand-held GPS ... know what regulation, if any, was being violated in the scenario. ...
    (rec.aviation.ifr)
  • GpsMap 276C NMEA Interface Problem
    ... about, but I have a 36 ft sailboat, several Garmin Gps and an Autohelm ... GpsMap 276C NMEA Interface Problem ...
    (sci.geo.satellite-nav)
  • Re: GPS Question ,, for novice
    ... The GPSMAP 76 is designed to provide precise GPS positioning using ... The GPSMAP 76 has an internal memory capacity of eight megabytes. ... How do you load the charts. ...
    (rec.boats.cruising)
  • Re: Clarification from Continental confirms GPS friendly policy
    ... There are many people who would spend 5 hours of a flight with the ... GPS usage is allowed and then I look out the window for the most of the ... GPS in the back of the magazine. ... Before GPS, I would carry the appropriate AAA map, and watch for rivers and ...
    (sci.geo.satellite-nav)
  • Great night IFR training flight tonight
    ... I'd filed an IFR flight plan before leaving from work for Lincoln to Lincoln via Marysville. ... Both airports have two GPS approaches each so we'd have plenty of choices. ...
    (rec.aviation.student)
Loading