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LOHAN acquires aircraft arboreal avoidance algorithm acronyms

Is that an ARMADILLO in your PANTS or are you just pleased to see me?

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We invite readers to raise a glass or two today to autopilot wrangler Linus Penzlien, who touched down in Spain yesterday afternoon ahead of an intensive week of Vulture 2 spaceplane Pixhawk custom parameter programming and testing.

And here is the man himself meeting local lass Ruperta this morning ahead of an intensive codefest:

Linus with Ruperta the donkey

Our Low Orbit Helium Assisted Navigator (LOHAN) mission requires several bespoke pieces of coding, and Linus will be working with APM:Plane lead developer Andrew Tridgell to implement them.

As we reported last week, the parameters include an "ascend wait" mode, wherein the Pixhawk twiddles its thumbs while the fantastical flying truss launch platform soars to motor ignition altitude, "launch detect" and subsequent autopilot activation into flight mode coding and, most ambitiously, a magnetic tree detection and emergency avoidance algorithm.

Recently, we used the Vulture Central mainframe to run some simulated High Altitude Ballooning (HAB) missions. In 99.92 per cent of cases, anything falling from the sky following balloon burst ended up hitting a tree.

Sensationally, when we simulated some HAB flights over Mars, 11 per cent of payloads also ended up entangled, even though the Red Planet doesn't actually have any trees.

Evidently, dark and mysterious forces are at work, but we're determined our Vulture 2 will be fully armed to defend itself against arboreal magnetic attraction.

Andrew has provisionally created APM parameter MAG_TREE_AVOID, but in the spirit of LOHAN we're going to need a snappy acronym for this advanced capability.

Reader Alister has already suggested ARMADILLO (Automated Realtime Magnetic Arboreal Detection and Impact Limitation with Landing Obstacles), while Sir Sham Cad reckons the whole thing is complete PANTS (Pixhawk Avoidance of Nearby Tree System).

We know you lot like a a bit of acronym tomfoolery, so stop whatever paid work you were doing and get stuck into this vital challenge. ®


More from the lovely LOHAN:

  • You can find full LOHAN coverage right here.
  • If you're new to LOHAN, seek out our mission summary for enlightenment.
  • There are photos our our magnificent Vulture 2 spaceplane here, and detailed structural plans here.
  • For your further viewing pleasure, we have all our photographic material stored on Flickr.
  • Our LOHAN and Paper Aircraft Released Into Space (PARIS) videos live on YouTube.
  • We sometimes indulge in light consensual tweeting, as you can see here.

LOHAN - A Special Projects Bureau production in association with...

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