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Japan's ispace reveals "HAKUTO-R" Mission 1 Lunar Landing crash results
PlainName:
--- Quote ---at least offer a better landing outcome then eyeballing it?
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I am not a pilot, but I think you can manually land a decent sized plane via eyeballing. Justification for this stance is the FAA Airworthiness Directive which was rushed in when 5G looked like it would be turned on before the radio altimeter manufacturers got their act together. There were 80 airports where this directive took effect, and the one linked to here covers Boeing 737 aircraft. The impact (sorry!) wasn't that they couldn't land without the altimeter but that they would take longer to come to a halt when doing so - there are several systems (like auto-brakes) which depend on the altimeter, so not having it would affect those systems.
Maybe an actual pilot can comment on this. I had previously assumed you could land via eyeball (but wouldn't if you didn't have to). Might be a bumpy landing since you're a long way up, but the landing gear has shocks :)
tszaboo:
--- Quote from: PlainName on May 29, 2023, 08:19:08 pm ---
--- Quote ---Judging when a sensor has failed due to a jump in readings, compared to flying over a cliff... it seems pointless because even then you have no alternate sensor or worse yet it also reads a jump and gets disqualified. SPLAT.
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Well, presactly. Yet the software peeps are being made out to be rubbish:
--- Quote ---Unreliable software thinks that hardware doesn't work properly. Hardware works properly.
Also, let's change last minute where we land.
So management and software engineers. Every time.
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Given the hardware, let's hear how tszaboo would solve everything.
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First of all, this comes out on top of a series of failed space missions that were wrecked by software. While for example Opportunity was operational for way longer than the hardware was designed for. In fact they almost lost it several times due to software issues. So you just have to trust the hardware better than firmware. Instead of discarding the reading and landing half a kilometer high, maybe just use the reading.
But if you are actually interested, they would need to tweak some parameters in their Kalman filter.
PlainName:
--- Quote ---maybe just use the reading
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And maybe nosedive into the crust. I don't think there's a programming language that uses hindsight.
tszaboo:
--- Quote from: PlainName on May 29, 2023, 10:30:01 pm ---
--- Quote ---maybe just use the reading
--- End quote ---
And maybe nosedive into the crust. I don't think there's a programming language that uses hindsight.
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As I read, that's exactly what it did, due to software.
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