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72 flights later and a rotor blade short, Mars chopper loses its fight with physics

(2024/02/26)


A little more light is being shed on the fate of NASA's Mars helicopter, Ingenuity, thanks to fresh images snapped by the Perseverance rover.

After an expectation-busting 72 flights over almost three years, the helicopter was finally retired in January 2024 when NASA's Jet Propulsion Laboratory (JPL) found rotor damage following a quick up-and-down flight to check the helicopter's systems.

NASA confirmed that Ingenuity was upright and in communication with ground controllers but would fly no more. Images released at the time indicated that the tip of at least one rotor blade had suffered damage. Subsequent images showed a missing upper rotor blade, however, the pictures were frustratingly low resolution.

[1]

Images snapped on February 25 by Perseverance's SuperCam Remote Micro-Imager, located at the top of the rover's mast, provide the best look yet at the damage, and we can see why NASA opted to retire the poor thing.

[2]

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Simeon Schmauß, a GeoVisual Design student at the Munich University of Applied Sciences, took the [4]raw data uploaded to NASA's Perseverance mission website and shared a set of [5]reprocessed images showing the fate of Ingenuity more clearly.

[6]WATSON picks up slack on Mars for SHERLOC as Perseverance gadgets show age

[7]Mars Helicopter Ingenuity will fly no more, but is still standing upright

[8]NASA lost contact with Mars helicopter Ingenuity, then managed to find it again

[9]Maverick Mars chopper has survived way past its warranty – now it's time for a sequel

In short, the tip damage on one blade was only part of the story. In Schmauß's [10]images , the detached rotor blade is clearly visible and lies approximately 15 meters from the helicopter. It also appears to have the same damage to its tip as the blades that are still attached.

The fact the blades all have the same damage indicates that it might have occurred before the rotor blade separated from the helicopter. However, there is still no definitive indication of what caused the damage. The distance traveled by the rotor blade suggests that it detached while in flight.

NASA has yet to comment on the latest imagery and issue a postmortem on what happened during Ingenuity's final flight. The agency intends to use similar technology to retrieve samples on the troubled Mars Sample Return mission, so learning lessons from Ingenuity's demise is vital for engineers preparing the next generation of Mars helicopters.

[11]

Regardless of what happened on that last flight, Ingenuity's mission remains an astonishing success. The helicopter was only supposed to manage five flights, and the fact it got as far as 72 flights before retirement is nothing short of jaw-dropping. ®

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[1] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_offbeat/science&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2Zd0YHmT@GgReI3ybYSYiBwAAAUg&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0

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[4] https://mars.nasa.gov/mars2020/multimedia/raw-images/LRE_1072_0762099726_099ECM_N0501618SCAM02072_0010I9J

[5] https://twitter.com/stim3on/status/1761715831472291996

[6] https://www.theregister.com/2024/02/15/perseverance_instrument_issues/

[7] https://www.theregister.com/2024/01/26/mars_helicopter_ingenuity_grounded/

[8] https://www.theregister.com/2024/01/22/mars_ingenuity_incident_esa_ice/

[9] https://www.theregister.com/2023/11/23/ingenuity_pushes_the_envelope/

[10] https://www.flickr.com/photos/semeion/53549974562/in/photostream/

[11] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_offbeat/science&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44Zd0YHmT@GgReI3ybYSYiBwAAAUg&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0

[12] https://whitepapers.theregister.com/



SnailFerrous

Bird strike, obviously.

Anonymous Coward

I'm glad i finshed lunch before reading your comment... as it stands, I don't need a new keyboard, and I don't need to clean my monitor...

elsergiovolador

Red kite? Probably that's why they can't see them, cause the reddish wings...

"nothing short of jaw-dropping"

Pascal Monett

Par for the course for successful NASA missions.

Why are you linking to Xshitter for photos instead of NASA or JPL???

ben kendim

https://www.theregister.com/2024/02/26/nasa_ingenuity_rotor_damage/

You all can't be bothered to see if NASA or JPL have imagery? You need to go to Musk for that?

Wait, hang on a mo...

heyrick

I know the JPL team is made of geniuses that managed to do something incredible with flying on another planet ...

...but are you now telling me that their final flight managed to land correctly (like, the right way up!) with a freaking rotor missing? How the bloody hell did they pull that off?!?

Re: Wait, hang on a mo...

lglethal

Through a combination of Perseverence and Ingenuity, perhaps?

I'll get my coat...

Re: Wait, hang on a mo...

John Robson

My guess - the rotors were damaged (if not visibly) on a(/the?) previous flight, and the tips failed during the flight, with the imbalance on the upper rotor causing loss of rotor. Since it was just a straight up and down... it could probably have dropped a fair way and survived.

Re: Wait, hang on a mo...

Phones Sheridan

My thoughts are that a blade fatigued causing rotor imbalance and the fatigued blade damaged all the other blades before being hurled off at high speed. YouTube has videos of blade fatigue on wind turbines, one second it’s there, the next it isn’t and the turbine usually shakes itself to bits in another second or so.

andrewj

At least it was bolted on, so no Boeing involved

Thanks little copter. . .

Philo T Farnsworth

You did a great job. . . as did all the human engineers and scientists at JPL who built you, tested you, and helped you fly.

Thanks for making this old nerd proud.

QOTD:
"It wouldn't have been anything, even if it were gonna be a thing."