On Fri, 9 Apr 2004 10:11:27 +0100
Jonathan Richards <[EMAIL PROTECTED]> wrote:
> I've been reading this thread with interest. You'll tell me if I'm wrong,
> JvH, but I believe the situation is that the HUD code (i) contains
> information which is proprietary ("industrial property") and (ii) attracts an
> [inter]national security protective marking, i.e. in loose journalistic terms
> it's a military secret.
I like the way you sum things up. That's exactly what I wanted to say in
a much less understandable manner. ;-)
> I can see several reasons why the latter should be
> the case if the HUD code tells you about the capabilities and performance of
> an in-service military aircraft. What this implies is that the HUD code is
> very specific to a particular aircraft, and hasn't been written so that the
> SECRET bits are parameterised.
That's more or less the way it is.
> Yesterday, you wrote '... we can't distribute
> ... even the symbol definitions' which I find intriguing; when I last had
> access to information in this area, the symbology was the subject of
> unclassified NATO definitions. Have you got a foo fighter underground
> somewhere?
Now that would be nice... Actually, our symbology is probably
non-standard. However, I've tried to search the internet for
"MIL-STD-1787A" (or B or C or D), which is a document mentioned
(incorrectly as MIL-STD-1797A) in FlightGear's README.xmlhud and the
document itself does not seem to have been published on the internet.
Maybe you have to buy it ? Or can we request it from an official source ?
> Seriously, in my experience it is the *performance
> characteristics* of military equipment that are secrets - if the aircraft is
> in service there will be an entry for it in Jane's!
Of course...
> Is the information which makes the HUD classified so embedded that it can't
> be extracted?
Maybe that's the easier way to put it, although it is not that simple.
Part of the answer is in Rick's post.
--
Jorge Van Hemelryck
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