Hitting a commercial jetliner with an off the shelf drone is impossible--especially at that altitude. With $8K it becomes feasible, but I'd put the level of difficulty at about the same as driving a Bugatti Veyron at 70mph in reverse and executing a j-turn (think Hollywood 180 spin) into a tight spot between two SUV's at the grocery store--3 times in a row.
As rare as plastic bags are at 1700 feet, if it was a sunny day in London in an area with a lot of jet traffic, then it was in all likelihood a bag that was kicked up by a car, caught a massive thermal and managed to get blown around by jet traffic.
(1) Fly fixed wing RC in excess of 180mph weekly and have flown quads for 3 years.
Hitting a commercial jetliner with an off the shelf drone is impossible--especially at that altitude. With $8K it becomes feasible, but I'd put the level of difficulty at about the same as driving a Bugatti Veyron at 70mph in reverse and executing a j-turn (think Hollywood 180 spin) into a tight spot between two SUV's at the grocery store--3 times in a row.
As rare as plastic bags are at 1700 feet, if it was a sunny day in London in an area with a lot of jet traffic, then it was in all likelihood a bag that was kicked up by a car, caught a massive thermal and managed to get blown around by jet traffic.
(1) Fly fixed wing RC in excess of 180mph weekly and have flown quads for 3 years.