dabol... at (no spam) gmail.com> wrote in message

news:477b3da3-d98e-48c7-a656-5c17b90fe378 at (no spam) e39g2000hsf.googlegroups.com...

Why does NASA persist in spending millions of dollars developing new,
innovative vehicles for traversing the moon? There are literally
dozens of desert vehicles on earth, quad runners, 4x4's, dune buggied
designs etc that already exist that would do what many of these
proposed vehicles do already. just retrofit them with electric motors
and be done with it. we dont need new frames, 8 wheeled turning
vehicles, etc. they should be focusing their energies on the power
sources, not the physical vehicles.use off-shelf offroad hardware.

Sure. And how much mass budget do you have to fly that thing there?

And what are you going to do about navigation once you're out of sight of
the landing vehicle?

Oh and when your sitting in the shade and the wheels get to be about 200
degrees below 0 how is your rubber going to react?

What about the grease in your ball bearings?

What about when you're in the hot sun and temperatures are above the boiling
point of water?

On Jul 3, 11:05 am, "Greg D. Moore \(Strider\)"





mooregr_deletet... at (no spam) greenms.com> wrote:
dabol... at (no spam) gmail.com> wrote in message

news:477b3da3-d98e-48c7-a656-5c17b90fe378 at (no spam) e39g2000hsf.googlegroups.com....

Why does NASA persist in spending millions of dollars developing new,
innovative vehicles for traversing the moon? There are literally
dozens of desert vehicles on earth, quad runners, 4x4's, dune buggied
designs etc that already exist that would do what many of these
proposed vehicles do already. just retrofit them with electric motors
and be done with it. we dont need new frames, 8 wheeled turning
vehicles, etc. they should be focusing their energies on the power
sources, not the physical vehicles.use off-shelf offroad hardware.

Sure.  And how much mass budget do you have to fly that thing there?

And what are you going to do about navigation once you're out of sight of
the landing vehicle?

Oh and when your sitting in the shade and the wheels get to be about 200
degrees below 0 how is your rubber going to react?

What about the grease in your ball bearings?

What about when you're in the hot sun and temperatures are above the boiling
point of water?

You left out passenger compartments not sized for EVA suits or
controls not sized for gloves

Also tires that explode because of the vacuum.

And for mass budget, why build it for 1 g will it will operate in 1/6
g

Also suspension system for 1 g is not going to work in 1/6 g
and the tires and treads needs to account for the different properties
of lunar soil.- Hide quoted text -

- Show quoted text -

Many of the off road vehicles, such as dune buggies, are
already minimized for weight by their space frame roll bar

Why does NASA persist in spending millions of dollars developing new,
innovative vehicles for traversing the moon? There are literally
dozens of desert vehicles on earth, quad runners, 4x4's, dune buggied
designs etc that already exist that would do what many of these
proposed vehicles do already. just retrofit them with electric motors
and be done with it. we dont need new frames, 8 wheeled turning
vehicles, etc. they should be focusing their energies on the power
sources, not the physical vehicles.use off-shelf offroad hardware.

On Jul 3, 11:05 am, "Greg D. Moore \(Strider\)"
- Show quoted text -

This may sound silly, but what about some mountain bikes with proper
tires/lubricants ?

They could fit a small trailer to carry bulkier stuff.

Why does NASA persist in spending millions of dollars developing new,
innovative vehicles for traversing the moon? There are literally
dozens of desert vehicles on earth, quad runners, 4x4's, dune buggied
designs etc that already exist that would do what many of these
proposed vehicles do already. just retrofit them with electric motors
and be done with it. we dont need new frames, 8 wheeled turning
vehicles, etc. they should be focusing their energies on the power
sources, not the physical vehicles.use off-shelf offroad hardware.

dabolton at (no spam) gmail.com> wrote in message
news:477b3da3-d98e-48c7-a656-5c17b90fe378 at (no spam) e39g2000hsf.googlegroups.com...
Why does NASA persist in spending millions of dollars developing new,
innovative vehicles for traversing the moon? There are literally
dozens of desert vehicles on earth, quad runners, 4x4's, dune buggied
designs etc that already exist that would do what many of these
proposed vehicles do already. just retrofit them with electric motors
and be done with it. we dont need new frames, 8 wheeled turning
vehicles, etc. they should be focusing their energies on the power
sources, not the physical vehicles.use off-shelf offroad hardware.

Sure. And how much mass budget do you have to fly that thing there?

And what are you going to do about navigation once you're out of sight of
the landing vehicle?

Oh and when your sitting in the shade and the wheels get to be about 200
degrees below 0 how is your rubber going to react?

What about the grease in your ball bearings?

What about when you're in the hot sun and temperatures are above the
boiling point of water?







--
Greg Moore
SQL Server DBA Consulting Remote and Onsite available!
Email: sql (at) greenms.com
http://www.greenms.com/sqlserver.html

This may sound silly, but what about some mountain bikes with proper
tires/lubricants ?

They could fit a small trailer to carry bulkier stuff.

You expect a person in an EVA suit to ride one?

Why does NASA persist in spending millions of dollars developing new,
innovative vehicles for traversing the moon?

There are literally
dozens of desert vehicles on earth, quad runners, 4x4's, dune buggied
designs etc that already exist that would do what many of these
proposed vehicles do already.

just retrofit them with electric motors
and be done with it. we dont need new frames,

8 wheeled turning
vehicles, etc. they should be focusing their energies on the power
sources, not the physical vehicles.use off-shelf offroad hardware.

charliexmurphy at (no spam) yahoo.com> wrote in message
news:a89063e3-1d5a-4600-a12d-b4a13181bafc at (no spam) w7g2000hsa.googlegroups.com...
On Jul 3, 6:36 pm, John Doe <j... at (no spam) doe.org> wrote:
This may sound silly, but what about some mountain bikes with proper
tires/lubricants ?

They could fit a small trailer to carry bulkier stuff.

You expect a person in an EVA suit to ride one?

Nah, they just take off the suit and hold their breath!

On Thu, 3 Jul 2008 06:28:42 -0700 (PDT), "dabolton at (no spam) gmail.com"
dabolton at (no spam) gmail.com> wrote:

Why does NASA persist in spending millions of dollars developing new,
innovative vehicles for traversing the moon?

Because the conditions are entirely different. Modifying existing
designs would end up more or less as expensive as starting from
scratch, but would almost certainly be heavier, and every pound sent
to the moon will cost several thousand dollars at least.

There are literally
dozens of desert vehicles on earth, quad runners, 4x4's, dune buggied
designs etc that already exist that would do what many of these
proposed vehicles do already.

No, they don't. They weren't designed for +200F to -200F operation in
vacuum, or to be folded up to fit on an LSAM carrier.

just retrofit them with electric motors
and be done with it. we dont need new frames,

Yes, we do. The frames of existing vehicles weigh more than most of
the proposed designs in their entirety.

8 wheeled turning
vehicles, etc. they should be focusing their energies on the power
sources, not the physical vehicles.use off-shelf offroad hardware.

Take a close look at how much you'd have to change. Your effort and
cost savings vanish instantly.

Brian

Yes, I was trying not to be rude as I thought the post mighthave been a
wind up. The thought of a Toyota factory on the moon made me laugh too.

I have a new concept for yer all.

A gyro stabilised pogo stick as simple one man transport.