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Over the last week, we’ve been testing the two solutions to address the “watchdog” timer issue that prevented the helicopter from transitioning to “flight mode” and performing a high-speed spin test of the rotors on April 9. These solutions, which have each been verified for use in flight are: 1) adjusting the command sequence from Earth to slightly alter the timing of this transition, and 2) modifying and reinstalling the existing flight control software, which has been stable and healthy for close to two years. The first solution requires adding a few commands to the flight operations sequence and has been tested on both Earth and Mars. From testing this technique on Ingenuity over the last few days, we know this approach is likely to allow us to transition to flight mode and prepare for lift-off about 85% of the time. This solution leaves the helicopter safe if the transition to flight mode is not completed. On Friday, we employed this solution to perform our first-ever high-speed spin test on Mars.
This solution is the least disruptive to a helicopter that, up until we identified the watchdog issue, has been behaving just as we expected. It is the most straightforward, since we do not have to change its configuration.
We also know that if the first attempt does not work on Monday, we can try these commands again, with good probability that subsequent tries in the days following would work even if the first doesn’t. For these reasons, we’ve chosen to pursue this path.
This video highlights three important milestones in the flight-testing program of the Mars helicopter system. The testing took place in the 25-foot space simulation chamber at NASA's Jet Propulsion Laboratory in Southern California where the Martian atmosphere was reproduced.
originally posted by: crayzeed
All I can say is if that's the guy who's going to fly the copter it'll crash. The top rotor is going the wrong way.
but the top rotor is spinning the wrong way.
The test required a certain rotation be attained?
You don't want it to fly, don't spin it so fast.
Go big or go home! The #MarsHelicopter successfully completed its 2nd flight, capturing this image with its black-and-white navigation camera. It also reached new milestones of a higher altitude, a longer hover and lateral flying.
Faster, farther, bolder. #MarsHelicopter is set for flight No. 3 on April 25. go.nasa.gov...
Range: 330ft (100m) roundtrip
Altitude: 16ft (5m)
Data expected later Sunday. Til then, peep this shot of rover tracks from the 2nd flight.