Feeds

LOHAN rolls out racy rocketry round-up

Progress to date on our audacious spaceplane mission

  • alert
  • submit to reddit

Next gen security for virtualised datacentres

2: Rocket motor testing in the Rocketry Experimental High Altitude Barosimulator (REHAB) chamber

It's fair to say that the small matter of how to get a solid rocket motor to fire at altitude has been a right palaver. It's taken months to go from an initial concept of a shed-built hypobaric test chamber to the full-fat REHAB rig:

The latest iteration of our Rocketry Experimental High Altitude Barosimulator rig

The bits and pieces are:

  1. Perspex lid
  2. Igniter cable
  3. REHAB chamber
  4. Vacuum pump
  5. Pressure gauge
  6. Digital thermometer
  7. Evacuation tube
  8. Thermocouple cable
  9. Safety tether tied to SPB standard brick
  10. Vacuum filter
  11. Insulated box
  12. Silicone seal

The only novelty here is the vacuum filter, which we've added to the system to allow us to see if the firing of reader Rob Eastwood's custom igniter is causing a significant pressure rise in the chamber prior to motor ignition.

The connected vacuum filter, before igniter firing

The filter will intercept any smoke particles and other gunk from the igniter before it gets to the vacuum gauge - an expensive piece of kit kindly supplied by Applied Vacuum Engineering.

This means we can test for igniter-induced pressure rise without shutting off the isolation valve between chamber and gauge.

We'll give that a go next week. In the meantime, we do know that we can persuade a Cesaroni rocket motor to fire at around 20mbar - equivalent to 76,500ft (23,300m):

The REHAB chamber lid almost vertical as it flies away from the rocket exhaust

Watch Video

We've got more REHAB tests planned just as soon as a new batch of motor reloads turns up, so there's further low-pressure tomfoolery on the horizon.

Secure remote control for conventional and virtual desktops

More from The Register

next story
Our LOHAN spaceplane ballocket Kickstarter climbs through £8000
Through 25 per cent but more is needed: Get your UNIQUE rewards!
LOHAN tunes into ultra long range radio
And verily, Vultures shall speak status unto distant receivers
NASA to reformat Opportunity rover's memory from 125 million miles away
Interplanetary admins will back up data and get to work
SpaceX prototype rocket EXPLODES over Texas. 'Tricky' biz, says Elon Musk
No injuries or near injuries. Flight stayed in designated area
EOS, Lockheed to track space junk from Oz
WA facility gets laser-eyes out of the fog
Volcanic eruption in Iceland triggers CODE RED aviation warning
Lava-spitting Bárðarbunga prompts action from Met Office
LOHAN Kickstarter breaks NINETEEN THOUSAND of your EARTH POUNDS
That's right, OVER 9,000 beer tokens - and counting
prev story

Whitepapers

Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
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.
Advanced data protection for your virtualized environments
Find a natural fit for optimizing protection for the often resource-constrained data protection process found in virtual environments.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.