Feeds

LOHAN deluged with Reg readers' interjections in REHAB

Revised hypobaric chamber plan for your delectation

Remote control for virtualized desktops

The Special Project Bureau's elite Hypobaric Evaluation And Design (HEAD) team has spent the last couple of days contemplating your suggestions as to how we might get LOHAN to suck more more effectively.

Click here for a bigger version of the LOHAN graphic

To rewind a bit for Low Orbit Helium Assisted Navigator virgins, we're planning to build a hypobaric chamber to test whether a proposed solid rocket motor for our Vulture 2 spaceplane will fire at low temperature and pressure.

Our initial concept for the Rocketry Experimental High Altitude Barosimulator (REHAB) didn't provoke too many howls of derision, but there were plenty of practical suggestions for improvements.

We've taken these on board, and here's our revised plan:

Our revised hypobaric test rig concept

Working more or less from top to bottom, here are details of the revisions, and a couple of clarifications:

  • The top plate has a safety tether ring, or similar, so we can tie it to something and prevent it going ballistic should an explosive event occur when the rocket motor fires.
  • The plate sits on a silicone rubber seal (good to -70°C, or thereabouts), and a flange – which provides a wide base and prevents the seal from being sucked into the inner tube.
  • The ignition wires pass through the top plate, to avoid the hassle of sticking them through the curved wall of the inner tube.
  • The dry ice pellets are packed into in the space between the inner and outer tubes, and vent freely into the atmosphere. There is no dry ice in the inner chamber.
  • The evacuation tube passes though the inner chamber base, for the same reason as applies to the ignition wires.
  • The inner tube base is also the entry point for a temperature sensor cable.
  • The shut-off valve is between the chamber and the pressure gauge. It'll be closed prior to the motor firing to prevent damage to the gauge and/or vacuum pump.

Some of you demanded a camera set-up to record the internal action, which we're still mulling. We have to balance what footage it might actually get against the amount of work required to provide a viable viewing port. We shall see.

Regarding materials, we're keeping an open mind. It is a case of seeing what's readily available at a reasonable cost. Watch this space... ®

A tip of the hat to our LOHAN associatesOpenPilot

Secure remote control for conventional and virtual desktops

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.
Getting started with customer-focused identity management
Learn why identity is a fundamental requirement to digital growth, and how without it there is no way to identify and engage customers in a meaningful way.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Simplify SSL certificate management across the enterprise
Simple steps to take control of SSL across the enterprise, and recommendations for a management platform for full visibility and single-point of control for these Certificates.
Top 5 reasons to deploy VMware with Tegile
Data demand and the rise of virtualization is challenging IT teams to deliver storage performance, scalability and capacity that can keep up, while maximizing efficiency.