Currently-configured suit with Mark II home-built convolute elbow section on the left, and on the right (in black/yellow) the off-the-rack, industrial hosing convolute elbow section (already tested on the sleeve testbed, but not yet on the suit under pressure) that is lighter, cheaper and simpler. SO suit Mark I was the essential suit without convolute elbows that gave essential function but limited mobility at operational pressures of up to 3.5psi: Mark II was same suit but with the home-constructed (on left) heavy convolutes that gave significantly better mobility at operating pressures; Mark III will be same suit with both lighter, cheaper and simpler convolutes (black/yellow) to give even better mobility at high suit pressures. Mark IV will be an entirely new suit with either these new elbow sections, or a different variety under construction & testing at present. We'll only give that new approach another month or so, then make the decision and build Mark IV; to make a flight at the end of the year, we have always to move ahead, even if only a little, every day.
Monday, January 12, 2015
Our first Open House of 2015 was a lot of fun, with lots of visitors -- just a few shown in the photo above (click to enlarge) -- from Portland State University's Aerospace Society and Portland State University Rapid Prototyping Group. We also had a visiting marine historian from the Explorers Club (he's dived to over 13,000 feet in Russian submersibles) and a couple of people simply walking by the porch saw the interesting devices inside, and came in to see what was up. Great fun!
Monday, December 29, 2014
Last summer we had some good test experiences in a cold chamber, testing the suit and its Life Support System at -20F. We'll be back in there this coming year for a more controlled test, which will be written up as a technical brief. The three technical briefs so far written can be found here. Photo by A. Magruder.
Friday, December 26, 2014
Tuesday, December 23, 2014
Between the thrilling and dramatic tests, there are hundreds of hours of building and planning the pressure suit project. I am organizing the precipitates of this work into research briefs that I archive online in PDF format; you can find the latest by clicking here.
Friday, December 5, 2014
Thursday, December 4, 2014
If you prefer, a direct link.