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The Space Elevator from Science Fiction to Engineering - page 7 / 50

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Carbon Nanotubes (CNTs)

5km continuous 1% CNT composite fiber

Carbon nanotubes: measured at 200 GPa (54xKevlar)

Sufficient to build the elevator

Mitsui(Japan): 120 ton/yr CNT production, US$100/kg

Sufficient to build the first elevator

CNT composite fibers: 3-5% CNTs, 3 GPa, 5 km length

Not strong enough yet but a viable plan is in place to get there (Carbon Designs, Inc.)

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