It's unlikely electric actuators would be lighter, just sketch the spindel parts in there that need to carry the load and you see it. Of course there are more considerations, such as the expansion because of the oil pressure on the tubes, but I am certain a reasonable hydraulic cylinder can be designed that's not super heavy. So these would need to be designed.Ī hydraulic cylinder is built of mainly 2 tubes, and tubes are design elements that can be tuned for light weight. I don't know what off-the-shelf cylinders are available, but I cannot imagine this huge size is available, simply because (almost) no one wants to push 10+ ton of forces on something that flies (except for short cylinders on aircraft landing gear). The material is not optimal (simply steel), they could be thinner, the piston could be hollow etc. Hydraulic cylinders you normally find are far from weight-optimal. Anything that takes part in carrying the weight needs to be rather sturdy. People don't realize the vast forces at play here. PS: If they use this design, I want a Tesla It is a raw design with lot of stress optimization and weight reduction potential, I know. One leg has a footprint of 4 m^2, so 24 m^2 for 6 legs. The stand width goes up to 14m, so a slighty uneven ground shouldn´t be a problem. 6 months away from home you want your landing gear to be 100% reliable There is enough space inside the legs for some damping mechanism and an emergency release via springs, if something goes wrong. No skirt folding/-openig due to its load bearing function.Īfter a few sheets of paper and some quick and dirty CAD work I ended up with this. wide rectangular profiles for high moment of inertia and torsional stiffness.
#Kerbal space program controls landing gear plus#
Plus you have batteries and electric motors for the flaps anyway) Engine heat at launch, months of deep, deep cold in space, reentry heat, etc. no hydraulics (I´m not very deep into hydraulics, but I think the temperatures are not very suitable for it. high base area of the feet to not sink in. I had some toughts on the leg problem too and think they will go for a solution as simple as possible.
Quote from: Walter83 on 03:18 pm Hi guys, a long time reader/first time writer here.
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