DEC GT40 original list price?

From: Megan <mbg_at_world.std.com>
Date: Mon Oct 4 18:51:29 1999

>Is it intentional that the minimum thrust setting is 10%?

I'm afraid I can't answer that... only Jack can.

I seem to remember that with that setting, if nothing else is
changed, you get pretty close (though you have to do 100% thrust
for a few seconds...)

>After the game ran correctly for about six hours, it lost the thrust
>indicator (the little horizontal line with a two-digit percentage right
>next to the thrust control bar). It was still possible to control the
>thrust. After another half hour, the display stopped working entirely,
>although from the keyboard beeping on crashes, it was obvious that the
>game was still running. I surmise that the display list was getting
>corrupted.

That is possible... each crash extends the display list because of the
wreckage. But I'm not sure. I have seen the unit run for MANY hours
without crashing or even losing any of the display... I guess it may
have to do with how much memory you have.

A few tricks...

        o I'm sure you know about flying through the mountain, so
          I won't mention it here.

        o Same for the trick of flying up over the mountain and
          landing on the other side... I think these have both been
          documented

        o If the lander lands successfully within range of the
          McD's, it sets the amount of fuel to be a constant for
          the take-off. You can land again if you are fast on
          reducing the amount of thrust.

        o The amount of fuel left is kept in location 130 or 140
          (if I remember correctly). If you run out of fuel, it
          is possible to halt the machine and fuel-up :-)

>If I'd had time to do it, it would have made sense to ask someone for a
>copy of the RIM loader and a description of RIM format, and use that
>instead, since it would require much less time to toggle in, and be less
>error prone.

Or take out the extra serial interface and put in an RX11 and attach
it to a desktop RX01... My first contact with a GT40 was in such a
configuration... running RT-11 (1975)

>I suppose that I should mention that Mike Cheponis and I won the VCF
>First Place award in the Minicomputer category for our GT40 exhibit. It
>was rumored that Jack Burness might attend the VCF, but AFAIK he didn't.

Congrats!

                                        Megan Gentry
                                        Former RT-11 Developer

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Received on Mon Oct 04 1999 - 18:51:29 BST

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