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The Miracle on the Hudson airliner took four 14 lb geese into the engines which was clearly too much. But it would have been able to land at an airport if the d
by danielvf 11y ago
The Miracle on the Hudson airliner took four 14 lb geese into the engines which was clearly too much. But it would have been able to land at an airport if the damage had been restricted to one engine.
FAA standards require airliners be able to safely withstand a 4 lb bird strike.
By comparison, a DJI Phantom drone weighs around 2 lbs and is unlike to be flying in dense enough flocks to damage both engines.
- cmurf 11y agoWhy is foreign object mass alone more relevant than its mass and density when it comes to ensuring turbine engine containment in an ingestion event? Bird have a known density. Drones have variable density. And since the tests thus far are done with birds I think it's unknown what happens when drone X is ingested into a turbine engine. The other fallacy is comparing birds were have minimal control over, vs man made aircraft that should be as capable of avoidance as the current regime.
- danielvf 11y agoTurbine engine containment isn't about containing the foreign object - it's about containing the ludicrously energized turbine blades. What breaks the blades is almost irrelevant. I'm more concerned about damage to the non engine areas of the aircraft, but they routinely survive 18 lb bird impacts in the wild. Even with lithium batteries being about four times denser than a bird, the weight being so much less means that the penetrating power should be less than a half that of a goose.
- neurotech1 11y agoWhat brought down Flight 1549 was damage to the core of both engines. If the birds just damaged the fans, then the aircraft probably would have been able to return and land safely. I'd be more concerned about a DJI Phantom type drone going through the windscreen of a light aircraft and injuring the pilot.