World Record - Mount Everest AS350 B3 landing and take off
Why Aviation Stack Exchange recommends it
Aviation Stack Exchange users link it as concrete evidence that helicopters can operate at extreme altitude, including at the top of Everest.
Recommended by 0 people across 0 different months, 2015 to 2019.
What it is
Official Airbus Helicopters footage of the 2005 record flight in which test pilot Didier Delsalle landed a stock AS350 B3 on the summit of Mount Everest at 8,850 m and then took off again. The short video documents the world altitude landing and takeoff record, later validated by the FAI.
Cited in 2 Wikipedia articles, including Eurocopter AS350 Écureuil, Didier Delsalle.
What people said
Cites Airsick · 2015-09 · Aviation Stack Exchange · on “Why can't helicopters fly at high altitudes?”
Don't believe everything you see in the movies. Doubly so if the movie originated in Hollywood. The world altitude record for a helicopter is 40,814ft (12440m), some 11,000 feet (3353m) higher then Everest, set in 1972 Reference: Wikipedia [LINK] In 2005 Didier DelSalle famously touched down on the summit of Everest in an AS350 Squirrel Reference: Wikipedia [LINK] . See below for a video. Both feats involved specially prepared aircraft and highly experienced crew. As has already been pointed out, a helicopter, just like any other aircraft, has a ceiling above which they cannot fly. Since it's clear that it is possible to fly helicopters to the required altitude in certain conditions , this i
Cites KorvinStarmast · 2017-06 · Aviation Stack Exchange · on “Is a fixed wing more efficient in reaching a certain altitude than rotary wing?”
Admiral, insofar as Mount Everest, A Squirrel did just that [this video] . *On May 14th, 2005 at 7h08 (local time), a serial Ecureuil/AStar AS350 B3 piloted by the Airbus Helicopters X-test pilot Didier Delsalle, landed at 8,850 meters (29,035ft) on the top of the Mount Everest (Kingdom of Nepal). It is also a world altitude takeoff record* ... but I'll offer that it's not an every day thing.
Cites CatchAsCatchCan · 2019-05 · Aviation Stack Exchange · on “Will creating a strong back pressure within a ducted propeller enable an aircraft to attain a higher altitude?”
Helicopters are capable of reaching remarkable altitudes ( see here [this video] ). If your device works at all I doubt it would have sufficient effect to overcome the extra weight.