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Ion Drives and SolarSails

By Harry McNamara

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Ion Drives_

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What is an Ion Drive?

propulsion for spacecraft

Fueled by electricity

hrust by acceleratin! ions

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Ho" does an Ion drive "or#?

ion pass throu!h an electrostatic !rid en!ine thepotential di$erence of the electric %eld convertsion&s #inetic ener!y'

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Why can(t "e use solar sails on)arth?

Because of !ravity Because of many other resistances

Wind resistance

*adiation can( be re+ected "ell

,-one layer

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Do"nsides about the ion drive'

Super slo" .nder development

Is not fully utili-ed

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Why can(t "e use Ion Drives on)arth?

Because of !ravity Because of many other resistances

Wind resistance

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Solar Sails

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What is a Solar Sail?

hin metal sheets /ery lon!

Many shapes

0o" thrust propulsion

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Ho" does a solar sail "or#?

Solar pressure1 *adiation pressure

.ses li!ht from the sun

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Ho" can "e use an ion drive

cheaper space travel2heaper fuel costs then chemical3nuclear4 fuel

5'6 #m1s

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Sources

"""'Wi#ipedia'com """'bln!'net

"""'Iondrive'net

"""'popularmechanics'or!

"""'Solarsails'or! """'nissan 'com

"""'fen!lee'com