IAC 2014 Toronto technical sessions: Hibernation and air launches are back in vogue but MarsOne food plans need revisiting

by | Oct 21, 2014 | Commercial human spaceflight, commercial launch services, Satellites, Science, Spaceport, Technology | 0 comments

Too much to see, and too little time to see it is the usual complaint about IAC, especially with respect to the various parallel strands of technical sessions.

Trying to get the timing right to switch between sessions for individual lectures was virtually impossible and “no shows” complicated the timing calculations. The internal arguments over the Ariane 5 and Ariane 6 decision within ESA led to several of these papers being cancelled. Likewise, those Chinese and Russian presenters who could not get visas had their lectures cancelled.

Even with these cancellations there was still too much to see.  The subject areas ranged from human exploration of the solar system to the latest developments in electric propulsion; from space debris mitigation methods, to new small launch vehicles; from hypersonic engine designs to new bellows fuel tank systems.

The quality of the presentations was variable but a small sample of the more interesting ones is reviewed here:

SOAR space plane to be launch stage

While Dream Chaser and its new junior brother gained all the headlines, work by the Swiss Space Systems (S3) organisation continues, as was itemised in IAC-14 D2.7.2. While Payerne Airport in Switzerland is the base of the project, S3’s plan is to fly operationally from Gran Canary in the Canaries, Spaceport Colorado, in Colorado, USA, and Kennedy Space Center, in Florida, USA.    Supported by ESA, Dassault Aviation and the Von Karman Institute, the concept involves air-launching a small hypersonic SOAR space plane which is powered to Mach 8 using a LOx/Kerosene rocket engine. 

SOAR carried by Airbus commercial jet aircraft. Courtesy: S3

SOAR carried by Airbus commercial jet aircraft. Courtesy: S3

At circa 80km altitude a small expendable upper stage will be released from SOAR’s payload bay, which will allow the launch of small satellite payloads up to 50kg into 700km low Earth orbits. The presenter, Laurent Gathier, of Dassault Aviation, reminded the audience that the S3 firm had already received a launch contract.  In September last year S3 and Spacepharma SA enterprise, a firm specialising in medical experiments in microgravity, signed a contract for the launch of four small satellites in 2018, followed by a monthly launch over two years, making a total of 28 planned launches.

On Redirecting Asteroids: two main options

While NASA’s planned Asteroid Redirect Mission (ARM) has come under fire from the scientific and space communities as not being scientific or adventurous enough given its cost, Christopher Moore, NASA’s Deputy Director, Advanced Exploration Systems Division, at least gave some fascinating detail as to the two options being considered (IAC-14 A5.4.1). 

One way or another, NASA's Asteroid Redirect Mission (ARM) will use solar electric propulsion to return an asteroid or part thereof to the Earth-Moon system. Courtesy: NASA

One way or another, NASA’s Asteroid Redirect Mission (ARM) will use solar electric propulsion to return an asteroid or part thereof to the Earth-Moon system. Courtesy: NASA

Option A involves using an inflatable boom actuated large bag to capture a small asteroid.  The bag carrying spacecraft would approach along the spin axis of the asteroid and then match its spin rate before pulling the bag around it. 

Option B has a spacecraft attempting to return a large asteroid boulder instead.  This would be grappled off the surface of an asteroid using robotic manipulators employing articulated trusses and micro-spine grippers.

After capture has been achieved, the asteroid or boulder would be returned to the Earth–Moon system in a flight lasting several years for further investigation by astronauts. Moore explained that the mission would use nanosats to externally monitor any capture procedure. 

Apart from noting that ARM’s solar electric propulsion would be directly applicable to Mars exploration missions, Moore also emphasised that important asteroid deflection technologies would be demonstrated, including ion bean deflection using a Hall Effect thruster’s plume, kinetic impact and gravity tractor techniques.

The initial launch of the ARM would take place in 2019 with the manned visit to the recovered asteroid or boulder occurring in, say, 2025.  Before the main mission, a low- cost precursor, NEA Scout, would be flown.

According to Moore, any manned element would probably need new all-in-one space/pressure suits to be designed with new portable life support and radiation protection.

Earth–Moon L2 space stations, new use for SLS, and placing a Skylon runway at Kourou

Other papers proposed small space stations at the Earth-Moon L2 positions to act as bases and technology demonstrators for such missions.  Meanwhile, both Airbus and Orbital Sciences Corp suggest using modified versions of their respective ATV and Cygnus craft as extra manned modules to aid long-range Orion operations including for asteroid research flights.  

Several papers indicated that NASA is actively considering using an early SLS launch to carry the Europa Clipper mission, cutting over four years and several flybys off its mission plan.

Space engineering consultant, Mark Hempsell, (IAC-14 D2.4.5) said that Reaction Engines, one of his clients, was actively thinking about operation of its Skylon D1 single-stage-to-orbit space plane.  Apart from mentioning Skylon upper-stage (SUS) operations, he noted that for infrastructure and Earth spin boost reasons, Skylon should be launched from the Kourou launch site in French Guiana. 

Proposed Skylon spaceplane deploys Skylon Upper Stage (SUS), with attached satellite, from its payload bay. Courtesy: Reaction Engines Limited

Proposed Skylon spaceplane deploys Skylon Upper Stage (SUS), with attached satellite, from its payload bay. Courtesy: Reaction Engines Limited

Hempsell showed where Skylon’s ultra-long 5.9km runway would be positioned following land surveys that had shown the ground to be solid enough.  He cheekily suggested that it would be even better to remove the proposed Ariane 6 launch pad as it was in the way a bit!

Proposed Skylon runway at Kourou. Courtesy: Reaction Engines Limited

Proposed Skylon runway at Kourou. Courtesy: Reaction Engines Limited

MIT rubbishes Mars One food plan

An analysis performed by post-graduate students at the Massachusetts Institute of Technology (MIT) (IAC-14 5.2.7) on the Mars One plan to send televised colonists to Mars came to the conclusion that not only would they run out of harvested food, given the stated 50m2 area used for these crops (MIT suggests that 200m2 would be needed), but that the crops would probably indirectly kill the colonists anyway.   That is, the right amount of crops would produce too much oxygen, which would, in turn, bizarrely cause the crew eventually to suffocate from hypoxia after 68 days. 

Sydney Do presents MIT’s analysis that the MarsOne colonists are doomed. Courtesy: David Todd/Seradata

Sydney Do presents MIT’s analysis that the MarsOne colonists are doomed. Courtesy: David Todd/Seradata

The increasing production of oxygen would raise the level to fire hazardous levels. Attempts to reduce the air pressure and oxygen levels by venting would lower this risk but would lose nitrogen.  The net result would be a downward spiral where oxygen would dominate the atmosphere and yet would eventually be at too low a pressure for the crew to breath. 

One way around this, according to MIT, would be to devise an oxygen scrubber device.  MIT also suggests that the food should be taken with the colonists (four arriving initially) and that spare parts might be an issue, especially as further colonists arrive though 3D printing technology may solve this.

Torpor and hibernation is a good thing for long range spaceflight if not for space lectures

While science fiction has often referenced methods of cryogenic freezing or suspended animation for crew “storage” during long-term space missions, recent work has shown that, at least for the latter, a practical reality exists.

Sigourney Weaver’s Ripley character hibernates in Alien (1979) Courtesy: 20th Century Fox

Sigourney Weaver’s Ripley character hibernates in Alien (1979) Courtesy: 20th Century Fox

Mark Schaffer, of SpaceWorks Enterprises (IAC-14 A5.2.8), talked about the recent use of rapid cooling to aid the recovery of hospital trauma patients. It had been shown that nasally injected coolant could lower the body’s core temperature by three degrees over six hours.  This allowed a state of reduced metabolism “torpor” or “hibernation” to be achieved.  

In research done for the NASA Institute of Advanced Concepts, it was demonstrated that “hibernated” crew in this way could be fed intravenously, cutting the volumetric space, water and foodstuffs needed to keep a crew alive for a long-distance missions.

Schaffer was at pains to note that no full human torpor experiments had yet taken place on non-trauma patients and none for longer than about a week. According to Schaffer no tubing is needed to keep the airway free of mucus build-up.

About Seradata

Seradata produce the renowned SpaceTrak Launch & Satellite Database. Trusted by 100 of the world’s leading Space organisations, SpaceTrak is a fully queryable database used for market analysis, failure/risk assessment, spectrum analysis and space situational awareness (SSA).

For more information go to www.seradata.com/spacetrak

Related Articles

IAC 2014 Toronto: Space agency heads cannot cooperate while visas are barred

While the heads of several space agencies delivered the usual platitudes about international cooperation at the IAC 2014, the “missing Read more

IAC 2014 Toronto Exhibition: Lockheed Martin wows the audience – but so does UK Pavilion

While quite small, the IAC's exhibition of stands had plenty of “big players”, such as Lockheed Martin, Boeing, SpaceX and DLR.  Read more

IAC 2014 Toronto: Venue, the City and the opening ceremony

The International Astronautical Congress (IAC) is arguably the most important annual meeting of the world’s space agencies.  This year, the Read more

Aspiring launch provider Relativity Space awarded contract to launch military STP payload

Relativity Space, an American company developing "3-D printed" rockets, has been given a contract by the US military to launch Read more

The newspace SPAC craze continues with established players Rocket Lab and Spire Global going public

Rocket Lab announced on 1 March 2021 that it plans to merge with Vector Acquisition Corporation, a SPAC (Special-purpose acquisition Read more

Recently gobbled up BCT receives order for six further Blackjack sats from DARPA

During February 2021 DARPA extended its Blackjack commitment with Blue Canyon Technologies (BCT) by exercising part of an option to Read more

Firefly Aerospace contracted to fly NASA JPL mission in 2022

On 18 February 2021 General Atomics has contracted Firefly Aerospace to launch the OTB-2 (MAIA) mission to LEO in 2022. Read more

ABL secures two payloads for the maiden flight of its RS1 rocket

On 16 February 2021 upcoming American, launch provider ABL Space Systems announced that it had secured two commercial payloads for Read more

Cookies & Privacy

Click here to read about use of cookies on the website