What can an MCP do that a traditional spacesuit cannot?Do the astronauts still need to spend hours in the airlock acclimatising to avoid the bends?
Quote from: A_M_Swallow on 01/14/2014 04:06 pmWhat can an MCP do that a traditional spacesuit cannot?Do the astronauts still need to spend hours in the airlock acclimatising to avoid the bends?The theory is much better mobility with much less bulk.
Airlock depress time is dependent on the difference in pressure between the normal pressure on-board and the pressure in the suits. If you're using the same pressure, you could just suit up and go.The problem is that operating a normal suit at 14.7 psi makes moving the joints a major chore.
Quote from: A_M_Swallow on 01/14/2014 04:06 pmWhat can an MCP do that a traditional spacesuit cannot?Do the astronauts still need to spend hours in the airlock acclimatising to avoid the bends?The theory is much better mobility with much less bulk.Airlock depress time is dependent on the difference in pressure between the normal pressure on-board and the pressure in the suits. If you're using the same pressure, you could just suit up and go.The problem is that operating a normal suit at 14.7 psi makes moving the joints a major chore.
Quote from: mheney on 01/14/2014 04:23 pmQuote from: A_M_Swallow on 01/14/2014 04:06 pmWhat can an MCP do that a traditional spacesuit cannot?Do the astronauts still need to spend hours in the airlock acclimatising to avoid the bends?The theory is much better mobility with much less bulk.Well it's much less "theory" than fact since that's what all the testing has shown. Much higher mobilty, much higher dexterity, with far less energy "fighting" the suit pressurization at the joints.Less bulky but you tend to run into thickness issues at "full" (14.7psi) counter pressure but it greatly depends on the materials used. I understand the MIT "Biosuit" experiments have found suitable modern materials to allow full function, full pressure suits.QuoteAirlock depress time is dependent on the difference in pressure between the normal pressure on-board and the pressure in the suits. If you're using the same pressure, you could just suit up and go.The problem is that operating a normal suit at 14.7 psi makes moving the joints a major chore.In a normal pressure suit moving a joint has to overcome the internal pressur to "bend" the joint because the suit wants to "expand" and remain rigid.
Quote from: mheney on 01/14/2014 04:23 pmQuote from: A_M_Swallow on 01/14/2014 04:06 pmWhat can an MCP do that a traditional spacesuit cannot?Do the astronauts still need to spend hours in the airlock acclimatising to avoid the bends?The theory is much better mobility with much less bulk.Well it's much less "theory" than fact since that's what all the testing has shown. Much higher mobilty, much higher dexterity, with far less energy "fighting" the suit pressurization at the joints.Less bulky but you tend to run into thickness issues at "full" (14.7psi) counter pressure but it greatly depends on the materials used. I understand the MIT "Biosuit" experiments have found suitable modern materials to allow full function, full pressure suits.
Quote from: RanulfC on 01/14/2014 06:21 pmIn a normal pressure suit moving a joint has to overcome the internal pressur to "bend" the joint because the suit wants to "expand" and remain rigid. That only true for soft suits, hard suits do not expand. Most modern suit designs are hybrids between the two.
In a normal pressure suit moving a joint has to overcome the internal pressur to "bend" the joint because the suit wants to "expand" and remain rigid.
QuoteWell it's much less "theory" than fact since that's what all the testing has shown. Much higher mobilty, much higher dexterity, with far less energy "fighting" the suit pressurization at the joints.Less bulky but you tend to run into thickness issues at "full" (14.7psi) counter pressure but it greatly depends on the materials used. I understand the MIT "Biosuit" experiments have found suitable modern materials to allow full function, full pressure suits.The last real research I've seen was by Webb. It seems like for the past decade all Dava has done is shown off a non-functional mock-up.
Well it's much less "theory" than fact since that's what all the testing has shown. Much higher mobilty, much higher dexterity, with far less energy "fighting" the suit pressurization at the joints.Less bulky but you tend to run into thickness issues at "full" (14.7psi) counter pressure but it greatly depends on the materials used. I understand the MIT "Biosuit" experiments have found suitable modern materials to allow full function, full pressure suits.
I get it that working in a spacesuit can be difficult, tiring and painful, but how much of this can be relieved by specific exercises. I know that I start off each new ski season with muscles that can be painful, underperforming and possibly dangerous, but after a month or two into the season I am very comfortable and effective. I could see that regular recent training could make working in a space suit much more comfortable, and especially for a MCP suit.How easy or practical is it to do regular exercise in an inflated space suit?
Is possible that MACE (Modified ACE) in EVA modality will be more confortable and sliding that the old A7LB suit?
Any about the overgarnment of this suit?Integrate white?
Actually, I'm thinking different colors for different astronauts. Red, Green Blue, Orange, Yellow, etc. This would allow quick and simple identification of personnel in space. Basicly primary colors. I'd also like to suggest that the outermost covering be a "rubberized" or otherwise nonporus outer covering to minimize dust and dirt entrapment in the suit fabric. A nonporus outer covering is MUCH easier to clean off than a porus fabric covering.