They "failed to see and avoid"
Dear FAA,
Please mandate ADS-B Out and In. And please sooner than 2020. These 4 people would be alive today if both aircraft had an ADS-B solution that gave them an alert to the other aircraft's presence, position, and altitude.
They "failed to see and avoid"
Dear FAA,
Please mandate ADS-B Out and In. And please sooner than 2020. These 4 people would be alive today if both aircraft had an ADS-B solution that gave them an alert to the other aircraft's presence, position, and altitude.
Until the dynamics of this particular accident are known, nothing can be said for certain about what would've have helped or not. Especially in a pattern environment at a towered field.
That needs to be figured out first.
Dude, you're slippin'.
Until the dynamics of this particular accident are known, nothing can be said for certain about what would've have helped or not. Especially in a pattern environment at a towered field.
That needs to be figured out first.
Within the confines of my little jurisdiction yesterday, we had four people killed in two motor vehicle accidents, with five more critically injured in those two accidents, and four more sent to the hospital with lessor injury from three other collisions during my eight hour shift. Multiply that times three for the full day's coverage here, and then by a nation of motorists going hither and yon.
What is that, like 38,000 dead and countless more thousands injured during the course of every year? No matter that we take it for granted, there isn't much we do that's more deadly, despite thousands of police road patrols (nationwide) to enforce Vehicle and Traffic law. Well, unless you consider how dangerous our homes are, with ladders and stools and stairs, swimming pools and electricity and fire for cooking, and the choking hazard simple eating actually is ...
I'd personally fly in just about anything, if I didn't have to drive to the airport![]()
Here's the map from the article. I've flown into SDM probably 50-60 times to clear customs. On a clear day we'll routinely cancel IFR over Mexico. It can be a little demanding with terrain constraints to the north, the jump zone and small aircraft in the pattern (and border patrol helo's all over the place @MikeD) But nothing out of the ordinary compared to other places we go. It looks like they both could've been on final for the 26's. Maybe a classic overtake? Some one crossing thier final into the other while turning base? Who knows. To say that ADS-B would be the end all be all is very short sighted. Back in the day the argument was for towers. This Class G airport is dangerous, we need a tower! Well people still hit each other at towered airports and I guarantee they'll still hit each other with ADS-B in and out. Especially if ADS-B doesn't deconflict traffic like TCAS. Oh, and we've still have mid airs with TCAS. Will all this tech make us safer, probably but I won't make a blanket statement that these people would be alive if they had it.
I know the history of TCAS and no, I can't think of any off the top of my head an accident besides those two. TCAS gives deconflicting instructions to participating aircraft. ADS-B in its current form does not. I love my TCAS, don't want to fly with out it. But in a busy pattern in the 45 my head is out side looking. TCAS doesn't have the range to self deconflict before an RA. The six mile scale is practically useless going into busy airspace like TEB an VNY. My point is, when you say these people would be alive with ADS-B, that is a huge statement to make. There are no certainties in aviation. What happens when it comes out the Sabelriner had TCAS, thought they had the traffic insight, ignored the RA and hit the 172? Would you say that ADS-B would've saved them?With the already mentioned Uberlingen 2002 midair and the Brazilian Legacy/GOL, can you name the others? TCAS has tremendously reduced airliner midairs, and it was mandated after the Aeromexico DC9/Piper collision straw-that-broke-the-camels-back in 1986.
Here's the map from the article. I've flown into SDM probably 50-60 times to clear customs. On a clear day we'll routinely cancel IFR over Mexico. It can be a little demanding with terrain constraints to the north, the jump zone and small aircraft in the pattern (and border patrol helo's all over the place @MikeD) But nothing out of the ordinary compared to other places we go. It looks like they both could've been on final for the 26's. Maybe a classic overtake? Some one crossing thier final into the other while turning base? Who knows. To say that ADS-B would be the end all be all is very short sighted. Back in the day the argument was for towers. This Class G airport is dangerous, we need a tower! Well people still hit each other at towered airports and I guarantee they'll still hit each other with ADS-B in and out. Especially if ADS-B doesn't deconflict traffic like TCAS. Oh, and we've still have mid airs with TCAS. Will all this tech make us safer, probably but I won't make a blanket statement that these people would be alive if they had it.
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With the already mentioned Uberlingen 2002 midair and the Brazilian Legacy/GOL, can you name the others? TCAS has tremendously reduced airliner midairs, and it was mandated after the Aeromexico DC9/Piper collision straw-that-broke-the-camels-back in 1986.
Agreed. Until we know the dynamics of this accident, its difficult to truly say what the best preventative measure would be. Any of the above scenarios you mention, are all possible at this early stage. Could've been a failure of TCAS, of ATC, of see and avoid (which legally would be primary in VMC, but we're just talking safety factors here), or a combo of all to varying degrees.
While not TCAS specifically, the midair of Channel 3/Channel 15 helicopters over PHX 8 years ago, as well as the Hudson midair, all aircraft were TIS equipped, providing more SA than just see and avoid, and the accidents still occurred.
That's why we have to know the accident dynamics first, to really be able to know what kind of help electronic systems could've provided, or not.
I know the history of TCAS and no, I can't think of any off the top of my head an accident besides those two. TCAS gives deconflicting instructions to participating aircraft. ADS-B in its current form does not. I love my TCAS, don't want to fly with out it. But in a busy pattern in the 45 my head is out side looking. TCAS doesn't have the range to self deconflict before an RA. The six mile scale is practically useless going into busy airspace like TEB an VNY. My point is, when you say these people would be alive with ADS-B, that is a huge statement to make. There are no certainties in aviation. What happens when it comes out the Sabelriner had TCAS, thought they had the traffic insight, ignored the RA and hit the 172? Would you say that ADS-B would've saved them?