[simpits-tech] Motion systems for sims - Best Ride Yet

[Marv De Beque]

The best ride I ever had in a sim was at NASA.  They used a centrifuge 
and a projected image of what you see out the nose of a fighter jet.  
The image is projected right in front of you as you set inside the 
capsule.

They run you up to 4.2 G's at times and the capsule tilts forward and 
back so the G force changes vector.

They do a full spin into the ground at one point and you swear that you 
are about to augur into the dirt!  It is so real, then, at the last 
second, they pull out hard and heavy as the G force collapses you into 
the seat maxing out at 4.2 G.

Quite a convincing ride!  ;-)))))


Marv


On Wednesday, April 10, 2002, at 03:03 PM, Alan D. Mazurka wrote:

> hi, group
>
> interestingly, an 8 foot display (as projected through a DLP projector) 
> has some very interesting effects on people 'visiting' my sim:
>
> * people usually grab something the first time i bank an aircraft.
>
> * i have had one person stop a driving sim because they became motion 
> sick.
>
> * whenever i drive NASCAR racing, the left side of my neck always aches 
> from turning left. of course there are positively no g-forces involved, 
> but my neurological programming has instinctively trained me to 
> 'tighten up' as i go into the corners.
>
> * after about 10 minutes of driving the Amtrak Acela at 110 plus MPH, 
> the large display really, really communicates speed. somehow, the 
> visuals accumulate in your subconscious.
>
> these events do not happen on a regular CRT-type display. it probably 
> has something to do with playing with your peripheral vision.
>
> your middle ear does not necessarily become involved, i really feel 
> it's a situation where you are "playing back" (through your nervous 
> system)  all your prior _experience_ involving those motion cues. 
> perhaps,  in effect "simulating" the experience.
>
> yes, unless the motion is precisely calibrated, you get sick. Disney 
> discovered this when developing its motion-based rides.
>
> ...in case you didn't know..
>
>  - adm -
>
> At 04:32 PM 4/10/02 +0200, you wrote:
>
> Nice link about spatial disorientation: 
> http://www.spatiald.wpafb.af.mil/illusions.asp
>  
>
>
>

>
>
> Alan D. Mazurka                    Webspace Design & Implementation
> adm.design@verizon.net