On Apr 17, 5:55�am, Fred J. McCall wrote:
" wrote:
On Apr 16, 10:48?am, Fred J. McCall wrote:
" wrote:

For a doable Mars mission you really need a dramatic cut in flight
time, ether a nuclear or ion propulsion for round trip.

Otherwise the consumables, radiation exposure etc becomes a deal
breaker.

All untrue.

While its true we COULD do a mars mission with chemical propulsion,
the risks costs and time involved just isnt practical.

Bull****.



besides with such a long flight time a mechanical breakdown could see
the entire crew die a long slow death.

So it was impossible for Europe to discover and explore the New
World...

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"Some people get lost in thought because it's such unfamiliar
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� � � � � � � � � � � � � � � � � � � --G. Behn- Hide quoted text -

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well at least the crew had air to breathe and could fish for food and
werent getting a possible killer radiation risk on the way.

beyond which we need low cost to orbit, once thats accomplished
everything else gets easier