[simpits-tech] Justin- Good artical on the C-17 sim

[Marv De Beque]

"Home airliner cockpit builders will find if they use a projector onto a
screen directly in front of the pilots that each pilot will be trying to
correct the plane to "his" centerline."

One more reason to build a single seater.  ;-)

Marv
-- 


> From: "Chris Woodul" <crewstation1@charter.net>
> Reply-To: simpits-tech@simpits.org
> Date: Tue, 11 Jun 2002 20:41:22 -0500
> To: <simpits-tech@simpits.org>
> Subject: Re: [simpits-tech] Justin- Good artical on the C-17 sim
> 
> Hi Justin,
> 
> I am familiar with the HUD focus delima. I long time ago in a galaxy far far
> away, I worked for a guy named Bob Carter for a year or so. He was the guy
> who started Thrust Master out of his garage. He also started several other
> companies including FLight Dynamics, which makes many of the HUDs in
> airliners ( IE the late model 737's)
> I toured the Flight Dynamics factory in 1998, and was shown how the image
> from the CRT has to pass thru a very complex set of optics ( would make the
> folks at NIKON get hardons) the purpose of which was to cause the image from
> the CRT to be focused at infinity. Infinity naturally occours at 300 feet.
> Hence the optics to trick the light into being force focused at that
> distance. Since in real jets you are actually looking at infinity out the
> window, it all works like a charm. When you stick a monitor, or a dome very
> close to the HUD, your eyes cant focus on the two "near" objects. Simulator
> makers have ways around the Focus issue for HUDs but the optics are very
> expensive and totally differnt for use in a sim ( imagine trying to get the
> target box in the HUD to line up with a plane on a dome or monitor in front
> of the HUD, as opposed to doing it for a plane at four miles away in Real
> Life? In the case of the C-17 they aparently opted not to use a simulator
> specific HUD option. Kaiser makes a sim specific F-16 HUD, and I have seen a
> really strange solution for the F-16 Block 40 LANTRIN HUD, that was angled
> the wrong direction to the pilot( youll just have to see the pictures of it
> to understand)
> I gave Matt Wietlespach his HUD back in 1998, and told him then, that the
> focus thing would be a problem. I really enjoyed watching him cut it up and
> "personalize" that HUD.
> A similar problem is for people with airliner sims. If you have two people
> sitting side by side looking out the window at a screen directly in front of
> them, you are going to have some collomation issues. Thats why the newer
> visual systems for airliners have a gigantic curved mirror in front of the
> windows. That mirror is reflectin g an image that is being back projected
> onto a smaller curved radius screen ABOVE the pilots heads. What happens is
> the image is much further away for the pilots and the image appears more
> collomated. Home airliner cockpit builders will find if they use a projector
> onto a screen directly in front of the pilots that each pilot will be trying
> to correct the plane to "his" centerline. The optics of the large Level D
> visual simulation systems is very very complex, and is well thought out. AND
> IT IS VERY VERY EXPENSIVE.
> Justin can you email me your phone numbers via discrete?
> 
> Chris Woodul
> 
> ----- Original Message -----
> From: "Justin Messenger" <jjmessenger@yahoo.com>
> To: <Simpits-tech@simpits.org>
> Sent: Monday, June 10, 2002 9:45 PM
> Subject: [simpits-tech] Justin- Good artical on the C-17 sim
> 
> 
>> Chris,
>> The seat looks great, but what else would I expect? :)
>> The C-17 sim was a great time to be sure. One thing I
>> forgot to mention in the article was the problemn with
>> the HUD. You cannot focus on the HUD and the outside
>> view at the same time, its the same problem Matt has
>> with his sim but the C-17 HUD cost a _lot_ more. Send
>> me a private email and we'll talk more about what you
>> want to know.
>> Justin.
>> Phantom.highspeedzone.com
>> 
>> 
>> 
>> ------------------------------------
>> Justin, i just built a one to one all metal replica of
>> the C-17 throttle =
>> quadrant for a company called AAI. We also built a
>> spare just for our =
>> display case, but I got a call from NASA who are
>> building a simulator to =
>> test out algorythms for flying a C-17 with engines
>> only ( ie Crash of =
>> United flight 232 in Souix City Iowa) A company called
>> Wittestien =
>> Solutions Inc is making it control loaded for us and
>> we shall be =
>> integrating it all. Id love to ask you some Technical
>> questions about =
>> the operation of the REVERSE Thrust ( which seems to
>> be fairly unique on =
>> the Globemaster III)
>> Id also love for you to possibly get me in touch with
>> your contact =
>> there...It sounded like you had some fun.
>> Thanks,
>> 
>> Chris Woodul
>> PS you can see the SIMULATED SJU-17/A NACES seat for
>> the F/A-18 that I =
>> designed and built on our company website, or on
>> Wittestiens website ( =
>> they rep our stuff)=20
>> Let me know what you think of the seat!
>> 
>> www.fain.com
>> www.wittsolutions.com
>> try both of these sites--- our website doesnt show
>> much of our sim =
>> capability because Wittenstien Reps our stuff
>> 
>> Chris Woodul
>> 
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