I'm quite sure that is a model helicopter and by the sound it just might be jet turbine powered.
BTW it is perfectly easy to loop a model helicopter with a teetering head rotor system. You just need lots of speed before entry otherwise you dont make it around before getting a mast bump - which isnt serious as the masts are usually solid steel and they wont break very easily.
I cant think of a real helicopter with the required grunt.
BTW it is perfectly easy to loop a model helicopter with a teetering head rotor system.
For freshman flyers .. please be sure to read the word "model" in the above statement as attempting a loop or roll with an underslung system in a full size aircraft and it's likely to be the last thing you do!
Yes, the Salt Lake City accident surely qualifies as a master cock-up, and just goes to prove that even after that particular 'wing-over' manoeuvre had been publicly performed around two and a half thousand times, a small drop in self discipline and peripheral awareness bites back hard.
SLC airfield ... 5,800 ft ASL, temperature +96 degrees F ... So just to say please don't try this at home without some guidance from a qualified DAE. Best wishes to all loopers. Dennis K.
Oh ... and to keep the record straight, the video clip embedded by Savoia was the Enstrom version of a Loop performed at North Weald. The accident Salt Lake City Sikorsky 300C manoeuvre was a 'nil power wing-over.' For the uninformed - not a lot of difference perhaps. DRK