Feeds

LOHAN's fantastical flying truss sprouts tail

Vulture 2 launch platform design shapes up nicely

  • alert
  • submit to reddit

Build a business case: developing custom apps

The Low Orbit Helium Assisted Navigator (LOHAN) team has been bogged down over the last few weeks in hypobaric rocket motor tests, but we've also been busy firming up the design for the Vulture 2 launch platform - our fantastical flying truss.

Click here for a bigger version of the LOHAN graphicIt's been a while since we last pondered this critical structure, which will be a carbon fibre triangular truss under which our spaceplane will soar aloft to its launch altitude.

The truss will also act as a platform for mission electronics, batteries, cameras, etc, all of which will sit inside a styrofoam box at the structure's rear end.

The LOHAN mission summary gives an overview of our cunning plan. Note that the Vulture 2 launch system - and specifically how we mount the launch rod - isn't the definitive design, and we've already got some planned changes based on input from our beloved reader experts.

Click here for a bigger version

LOHAN fans will recall we've already tested one flying truss model...

Katarina with the flying truss ready to go

...which gave us enough information to come up with a definitive design.

Here's a one-quarter scale model of how the finished two-metre-long truss will actually look, complete with a mocked-up electronics enclosure and, provocatively, a shapely rear end:

The one-quarter scale model of our flying truss, with tail

We suspended the truss at its planned inclination of 20° from vertical and let the wind do its stuff. The biggest potential problem on the ascent is wild spinning, but our design has one big advantage over the Paper Aircraft Released Into Space (PARIS) solid main payload box.

The fact that we have an open structure at one end of the truss, and the electronics enclosure at the other, causes a weather vane effect which tends to dampen the spinning. By adding a tail, as seen in the above snap, we've been able to further reduce spin as the entire truss naturally orientates itself into the wind.

So, we're pretty happy with that, and are poised to buy some carbon fibre bits and get on with the full-fat truss. As noted above, just how we mount the Vulture 2 launch rod assembly is still to be firmed up, and since it depends on the final dimensions of the spaceplane, we'll deal with that when the Vulture 2 emerges from the 3D printing machine.

As we move inexorably closer to a stratospheric climax, your comments/suggestions on LOHAN's progress are warmly welcomed. ®

Further LOHAN resources:

  • New to LOHAN? Try this mission summary for enlightenment.
  • You can find full LOHAN coverage right here.
  • Join the expert LOHAN debate down at Reg forums.
  • All the LOHAN and Paper Aircraft Released Into Space (PARIS) vids live on YouTube.
  • For our SPB photo archive, proceed directly to Flickr.
  • We sometimes indulge in light consensual tweeting, as you can see here.

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

  • 3T RPD logo
  • University of Southampton logo
  • Applied Vacuum Engineering logo
  • Escher Technologies
  • Flashpoint Fireworks logo

Securing Web Applications Made Simple and Scalable

More from The Register

next story
World Solar Challenge contender claims new speed record
One charge sees Sunswift travel 500kms at over 100 km/h
SMELL YOU LATER, LOSERS – Dumbo tells rats, dogs... humans
Junk in the trunk? That's what people have
The Sun took a day off last week and made NO sunspots
Someone needs to get that lazy star cooking again before things get cold around here
Boffins discuss AI space program at hush-hush IARPA confab
IBM, MIT, plenty of others invited to fill Uncle Sam's spy toolchest, but where's Google?
Famous 'Dish' radio telescope to be emptied in budget crisis: CSIRO
Radio astronomy suffering to protect Square Kilometre Array
BEST BATTERY EVER: All lithium, all the time, plus a dash of carbon nano-stuff
We have found the Holy Grail (of batteries) - boffins
Bad back? Show some spine and stop popping paracetamol
Study finds common pain-killer doesn't reduce pain or shorten recovery
Forty-five years ago: FOOTPRINTS FOUND ON MOON
NASA won't be back any time soon, sadly
Jurassic squawk: Dinos were Earth's early FEATHERED friends
Boffins research: Ancient dinos may all have had 'potential' fluff
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Seven Steps to Software Security
Seven practical steps you can begin to take today to secure your applications and prevent the damages a successful cyber-attack can cause.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.