Re: More on the maglev

[revdoc@uow.edu.au (Phil Herring)]

In article <6pbtbe$iug$4@news.mel.aone.net.au>, dbromage@fang.omni.com.au
(David Bromage) wrote:

> One thing they do say is that a transrapid can accelerate from 0 to
> 300km/h in 3800m, or 0 to 500km/h in 5000m. Doing the maths, this means an
> average acceleration of about 0.9m/ss, actually much higher as
> acceleration drops off to 0.75m/ss above about 350km/h. \
> 0.9m/ss is about 0.1g. In comparison, a Boeing 747 hurtles down the runway
> on take off at an average of about 0.l2g, just a tad faster. (The initial

Yes, *but*, all that you're saying here is that the MagLev _can_
accelerate at 0.1g; not that it *always will* accelerate at 0.1g.
Presumably, they can accelerate at whatever rate they want below that.

Any further argument based on this 0.1g figure is, IMO, pointless.

> force you feel on your back is much higher, but eases off a little after a
> few seconds). A transrapid pulling away from a station would feel much
> like an aircraft taking off. I for one wouldn't find that very comfortable
> on a service with several stops.

I once flew half the length of Chile on a Ladeco jet that took off and
landed about 4 or 5 times, with maybe 15 minutes airborne between. It
didn't bother me in the slightest. (Although the stale sandwiches were
less than thrilling :)


-- Phil.