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I very recently had my ADSB fail while flying in a piper arrow. I think its probably good to have redundant systems in place, its a core to aviation to do that

I very recently had my ADSB fail while flying in a piper arrow. I think its probably good to have redundant systems in place, its a core to aviation to do that with instruments. Also, the military jams GPS rather frequently for exercises: https://www.thedrive.com/the-war-zone/17987/usaf-is-jamming-gps-in-the-western-u-s-for-largest-ever-red-flag-air-war-exercise https://www.thedrive.com/the-war-zone/17987/usaf-is-jamming-...

reaperducer 7y ago
Not just for exercises. There are places in America where it's permanently jammed, most often near military bases.
- briandear 7y ago
  Really? Where? I overview Edwards AFB last week (with clearance as Joshua Approach gave me a shortcut across the restricted areas,) I flew close to Vandenberg last month, not an overfly, but just on the edge of the airspace, I also flew near Fort Huachucha, AZ which is an Army Intel post. I flew right near the Yuma Proving Ground on another trip. Even flew right on the edge of the series of restricted areas containing Area 51 — not a single place was GPS jammed. Even Camp Peary and a few other extremely sensitive sites aren’t permanently jammed. Even jamming near Nellis and Area 51 is done by NOTAM and not perpetual. Maybe there is some permanent jamming somewhere but pilots would know about it as GPS availability knowledge is safety critical.
opwieurposiu 7y ago
Ah the piper arrow. Fond memories of many trips around florida and caribbean in that plane as a kid. It was my job to "help" with the navigation, using a paper chart and VOR/NDB steam gauge instruments. Dad was able to teach 10yo me how to do this stuff, but it was easy to confuse from/to or think you are tuned to station x when actually you are on Y, etc. Particularly night VFR was hard to be sure you were exactly where you thought you were. We did not fly over open water at night. Later we got a primitive GPS, no maps just waypoints and lat/lng. That thing was so much easier to use it was night and day. Just dial in a 3 letter code for your airfield, and you get range,bearing,eta. GPS is a huge improvement to safety and convince, but if it goes out a night or in bad weather there are gonna be some problems.
- jandrese 7y ago
  If it goes out you're back to the old methods, but of course you're all rusty on those old methods because you don't normally have to use them. I've had kids ask me what we did before we had GPS and Google Maps and I tell them that we got lost or turned around a lot more often.

reaperducer 7y ago

Not just for exercises. There are places in America where it's permanently jammed, most often near military bases.

briandear 7y ago
Really? Where? I overview Edwards AFB last week (with clearance as Joshua Approach gave me a shortcut across the restricted areas,) I flew close to Vandenberg last month, not an overfly, but just on the edge of the airspace, I also flew near Fort Huachucha, AZ which is an Army Intel post. I flew right near the Yuma Proving Ground on another trip. Even flew right on the edge of the series of restricted areas containing Area 51 — not a single place was GPS jammed. Even Camp Peary and a few other extremely sensitive sites aren’t permanently jammed. Even jamming near Nellis and Area 51 is done by NOTAM and not perpetual. Maybe there is some permanent jamming somewhere but pilots would know about it as GPS availability knowledge is safety critical.

opwieurposiu 7y ago

Ah the piper arrow. Fond memories of many trips around florida and caribbean in that plane as a kid. It was my job to "help" with the navigation, using a paper chart and VOR/NDB steam gauge instruments. Dad was able to teach 10yo me how to do this stuff, but it was easy to confuse from/to or think you are tuned to station x when actually you are on Y, etc. Particularly night VFR was hard to be sure you were exactly where you thought you were. We did not fly over open water at night. Later we got a primitive GPS, no maps just waypoints and lat/lng. That thing was so much easier to use it was night and day. Just dial in a 3 letter code for your airfield, and you get range,bearing,eta. GPS is a huge improvement to safety and convince, but if it goes out a night or in bad weather there are gonna be some problems.

jandrese 7y ago
If it goes out you're back to the old methods, but of course you're all rusty on those old methods because you don't normally have to use them. I've had kids ask me what we did before we had GPS and Google Maps and I tell them that we got lost or turned around a lot more often.