Original URL: http://www.theregister.co.uk/2011/09/16/lohan/

LOHAN deluged with Reg readers' interjections in REHAB

Revised hypobaric chamber plan for your delectation

By Lester Haines

Posted in SPB, 16th September 2011 10:11 GMT

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:

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