Pretty sure we achieved that level of coverage here in the US a decade or more earlier than that. A lot of those same rural customers still rely on the telephone system for Internet access. They might be able to get DSL now, but the speeds are going to be low; often just a few hundred kilobits per second.
Open problems are not that yardstick. Fermat's Last Theorem is the result of Wiles and Wiles-Taylor, but without key results from Serre, Ribet, Ihara, Langlands-Tunnels, and Frey's program none of what Wiles did would work. But Wiles did get the prize. Nowadays I think the inputs have shrunk a bit by doing more in the R=T theorem so less other cleverness needed.
yeah and so does the ardupilot documentation including examples. A basic guidance system, which is like single waypoint navigation, is a solved problem. It's in basically every prosumer drone too.
They were over takeoff velocity at that point and could have bounced up in the air and waited for the thrust to come. Would have been sketchy but better than what did happen.
They were not over takeoff velocity at that point. They were at 120 knots when they initiated GA and slowed to 117 knots before aborting (again, the engines take time to spool up despite full thrust configuration and no braking over those seconds). Takeoff is at least 130 knots, I don't know for their exact configuration. (At max takeoff weight it's something like 153 knots, but at the end of their flight they aren't carrying a full fuel load.)
There is one thing an airline never wants to have happen and it is a fatal accident. Everything else is secondary. Having one caused by corporate policy would lead to mass exodus of passengers.
21Air isn't a passenger airline though, it's cargo. It's conceivable that they have lower standards, hire less experienced pilots, and just don't emphasize safety culture in the same way that passenger airlines do.
> It's conceivable that they have lower standards, hire less experienced pilots, and just don't emphasize safety culture in the same way that passenger airlines do.
In German railways there is a saying "Fracht motzt nicht, Fracht kotzt nicht" - freight neither complains nor vomits.
I would not be surprised at all to find this kind of attitude in air freight transportation too.
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