I'm toying with an idea in relation to a SGA story I'm writing. Would you consider it possible for Atlantis to develop powered exoskeletons and/or armoured suits a few years post-season 5? (We know they've encountered aliens with those types of suits, such as the Vanir, so they certainly have places where they may find inspiration.)
The way I see it, a powered exoskeleton in itself is possible, since the technology has existed on Earth since the 1960s. The powering system should also not be a problem, since in-franchise they have naquadah and can find inspiration to design smaller power packs from both the Area 51-built generators and the Jaffa/Goa'uld technology. Those power packs would additionally last longer than the technology we have on Earth today, though I'm open to suggestions as to how long they might actually last before needing to be replaced.
So, for those tech-savy people out there, here are some of my technical questions (creative license is allowed):
1) What kind of lightweight material would be best to use in the exoskeleton? Do we have any in-franchise that would work better than real life materials?
2) Would it be best to use electronic servomotors or pneumatics for the joint actuators?
3) Would Atlantis be capable of designing an external armour that could withstand projectile/energy weapons? If yes, what would they need to do that?
4) Is it more plausible to build a rigid exoskeleton and have the wearer use a heavy-armoued suit beneath, or to build a hard shell suit over an exoskeleton with overlapping armour plates that follows the wearer's motions (like the medieval knights wore, or Stormtroopers - take your pick)?
As always, thanks in advance!