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HelicopterMain Discussion › Lifeguard drone (heli) completes world-first ocean rescue
01-20-2018 11:08 PM  89 days agoPost 21
madgadget

rrApprentice

St Louis MO

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I want to auotrotate one of my hexes, please share video

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01-20-2018 11:38 PM  89 days agoPost 22
Professor Fate

rrKey Veteran

Goose Creek S.C.

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Best you could ask for is a ballistic parachute.

Welcome my son, Welcome to the machine

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01-20-2018 11:43 PM  89 days agoPost 23
JuanRodriguez

rrProfessor

The Villages, Florida

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Jamovich
A hexacopter (and above) can “autorotate” if one of its motors fails
Yes, I would like to see some video footage as well....

Or is this just more unsubstantiated "keyboard talk" ??

Been there, done that and old enough to know better.....

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01-20-2018 11:52 PM  89 days agoPost 24
madgadget

rrApprentice

St Louis MO

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walkera showed a hybrid drone @ ces 2018. Gas engine charged on board lipos boasting more than 2hrs flight time with camera payload. 1200mm hex hybrid. I had one bad prop on my octo and the z15 gimbal couldn't handle it. I'm curious how modern gimbals tolerate gas engine pulses.

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01-21-2018 02:53 AM  89 days agoPost 25
Jamovich

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Bangalore, India

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Autorotation on a quadcopter

Watch at YouTube

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01-21-2018 02:59 AM  89 days agoPost 26
Jamovich

rrVeteran

Bangalore, India

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And failure for hexacopter

Watch at YouTube

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01-21-2018 04:30 AM  89 days agoPost 27
IYKIST

rrKey Veteran

London united kingdom

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I would not call that autorotation, the other motors are still working and making up for the failed motor, cut the power to all motors and see if it autorotates.

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01-21-2018 05:26 PM  88 days agoPost 28
TMoore

rrMaster

Cookeville, TN

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That's limp home mode right there. My truck has that, except you can actually steer and halfa$$ drive the truck during that operation.

Autorotation? No!

Delayed Response Operator Not Engaged

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01-21-2018 07:34 PM  88 days agoPost 29
ticedoff8

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Morgan Hill, CA. USA

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Jamovich
I think the term "autorotation" is well defined.

http://www.dictionary.com/browse/autorotation
noun, Aeronautics.
1.
the condition of flight occurring when lift is derived solely from the action of air upon the unpowered rotor of a moving helicopter or autogiro.
Quad / Hex / Octo -copters do not autorotate.
Their flight stability is derived solely from from controller power to the motors.
Take away the multi-rotor's motor power, it flies like a brick.

Those videos show how a multi-rotor can survive a single motor failure.
You can find videos of multi-rotors surviving multiple motor failures
None of them are "autorotating"

Believe 1/2 of what you see and none of what you hear.
Fake News will be the downfall of our Republic!

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01-24-2018 07:17 PM  85 days agoPost 30
dela

rrApprentice

Stillwater Oklahoma

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Jamovich said: "A hexacopter (and above) can “autorotate” if one of its motors fails".

He intentionally put put "autoratate" in quotes, and said if ONE of its motor fails.

I knew what he meant.

RDD

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