Feeds

Readers, we need you... for LOHAN ignition failsafe brainwaves

Last call for back-up rocket-sparking designs

  • alert
  • submit to reddit

Beginner's guide to SSL certificates

The Low Orbit Helium Assisted Navigator (LOHAN) team is inviting experts among our super readers to submit final proposals for a back-up ignition system for our Vulture 2 spaceplane's mighty rocket motor.

Click here for a bigger version of the LOHAN graphicAs SPB ballocket regulars know, the primary system designed to light LOHAN's fire is the Special Project Electronic Altitude Release System (SPEARS) control board.

SPEARS uses GPS-determined altitude to switch on reader Rob Eastwood's 12V custom igniter. This design was developed after motor tests in the Rocketry Experimental High Altitude Barosimulator (REHAB) chamber showed off-the-shelf igniters by Cesaroni and AeroTech don't much like low-pressure environments.

Accordingly, Rob put together a custom bit of kit, which proved up to the challenge of getting ammonium perchlorate composite propellant motors fired up in a near vacuum...

Rob Eastwood's diagram of his custom LOHAN igniter

At our request, the igniter has two electricity supply cables - one for connection to the 12V battery pack controlled by SPEARS, and another for a back-up system.

Our first thoughts on such a system were that it should be entirely mechanical and triggered at, or after, balloon burst. Here's what we suggested:

Graphic of our proposed mechanical failsafe mechanism

This didn't much impress some of our regular LOHAN commenters, and here's their initial input.

Well, we've taken that on board and are keeping an open mind. However, we do now have to make a final decision, so this is the last chance to chip in your two bits' worth before we finally get down to business.

So, it's thinking caps and kettles on for brilliant ideas and nice cuppas, respectively. As soon as we'll trawled through all the options, we look at the more plausible ones and get back to you with our planned line of attack. ®


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
  • HAB Supplies logo
  • Rock 7 logo

Paper Aircraft Released Into Space

Intelligent flash storage arrays

More from The Register

next story
Renewable energy 'simply WON'T WORK': Top Google engineers
Windmills, solar, tidal - all a 'false hope', say Stanford PhDs
SEX BEAST SEALS may be egging each other on to ATTACK PENGUINS
Boffin: 'I think the behaviour is increasing in frequency'
HUMAN DNA 'will be FOUND ON MOON' – rockin' boffin Brian Cox
Crowdfund plan to stimulate Blighty's space programme
Post-pub nosh neckfiller: The MIGHTY Scotch egg
Off to the boozer? This delicacy might help mitigate the effects
I'M SO SORRY, sobs Rosetta Brit boffin in 'sexist' sexy shirt storm
'He is just being himself' says proud mum of larger-than-life physicist
NASA launches new climate model at SC14
75 days of supercomputing later ...
Britain's HUMAN DNA-strewing Moon mission rakes in £200k
3 days, and Kickstarter moves lander 37% nearer takeoff
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
The Heartbleed Bug: how to protect your business with Symantec
What happens when the next Heartbleed (or worse) comes along, and what can you do to weather another chapter in an all-too-familiar string of debilitating attacks?
New hybrid storage solutions
Tackling data challenges through emerging hybrid storage solutions that enable optimum database performance whilst managing costs and increasingly large data stores.