Ground Resonance in Helicopters

Inspired by this recent video

I felt inspired to make a compilation of clips showing the "ground resonance" effect in helicopters.

When a helicopter has contact with the ground it becomes a completely different dynamical system compared to its flying state. Certain frequency ranges of the rotor have to be passed very quickly then. Otherwise it can lead to catastrophic failure.

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8 comments posted so far. Login to add a comment.

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+14 1. LQoQK commented 6 years ago

watch while this is on the background
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+9 2. snotraddict commented 6 years ago

0:56 shake that booty. :x
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+11 3. Glubok commented 6 years ago

Ground has always been a bitch for aircrafts. >:)
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+3 4. Geekster (admin) commented 6 years ago

#3 Yeah, kinda is >:)
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+4 5. thundersnow commented 6 years ago

Wow, never heard of an issue like that before...learned something new, thanks for sharing kirkelicious :)
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+2 6. ComentAtor commented 6 years ago

#5 agree , that's why i still come here :)
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0 7. buckleg08 commented 2 years ago

learned something...and this was also in time with kobes chances this appearing?:O
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0 8. Judge-Jake commented 2 years ago

Few sights more sad than a dead helicopter. :(