Back to the main page

Mailing List Logs for ShadowRN

From: R Andrew Hayden <rahayden@*****.WEEG.UIOWA.EDU>
Subject: Equation Summaries, Comments, Suggestions.
Date: Fri, 12 Mar 93 06:41:40 CET
Comments to what I am about to say are EXPECTED. Send them to the list
for all to see.


Alright, I've let this little war on here fester for a couple of
days in an attempt to see what kind of response my "radical" posts
produced. In addition to the usual net.banter, I also got about
three or four really good flames. Not bad; I'll give them about
an 8 or so.

Now, what I'm going to do is once again sumarize the current
suggested equations. I'm going to make some suggestions about
them. This suggestions, which some will find 'distasteful', are
made with the hope we can get this thing moving again. Please
read it all before you fly off the handle and make more stupid


In any case, I've also taken another chance to pull down the logs,
print them out, and pour over them again to try to get some kind
of an idea of just where in the hell we are on this thing. I'll be
honest. I have no 'frickin' idea where we are currently heading.
All I know is that we are currently stalled with our feet on the

Now, according to the logs, the following equations were offerend
and had no complaints:

Max Vel = (Power / Mass) * 3 m/Combat Turn
Cru Vel = (Power / Mass) m/C. T.

Now, let's start with these, does anyone have any problems with
these equations (assuming that an average engine would yield
average speeds)?

I have only one problem, and is that I think havign max speed
being 3x cruising is too high. Lets drop that down to 2x perhaps.

If there are no other comments, than consider these two equations
to be carved in Silly Putty.



gas = (28000 / Mass) km/l
Multi= (42000 / Mass) km/l

>>> No proposals were made for electric

Unfortunately, these two equations have the drawback of not taking
into account the size of the engine, only the mass of the vehicle
body. We've batted around several possible ideas to comabt this
discrepency, but none have produced results.

Now, don't get angry and start swearing (it causes the veins in
your forehead to show), but what if we use a table. This table
gives an economy figure based on engine size v vehicle wt. It
would looks something like this (and this is very crude).

500 1000 1500 2000 2500 3000 3500 4000
400 >>>>> Fill this with data. As Engine size and wt goes up,
450 the economy goes down. <<<<<

Now, a table will have to be done for each engine type for each
vehicle, but it should be pretty easy to fill in the blanks and
get it done.

I think this will work because economy does not come in to play
very much inless your characters are going to go cross country or
fly an great distance.


Engine Size and Engine Mass:

ES= Sqrt(POWER) or Power = (ES)^2
EM= ES (kg)

Anyone have a problem with these? The only thing I see is that
there should be a size/weight multiplier applied for different
engine types, but if anything we can make different engine types
an accessory and you apply a multiplier then.



There have really be no good equations proposed for acceleration.
There were a couple, but right away some major flaws in them were
found. Because of this difficulty, and in the interest of getting
this part DONE, I'm going to suggest that we going to a relational
system in which power v weight is applied to a table to yield an

Each vehicle class would probably have a different table, but I
think in the end it will prove much faster and easier and less
prone to being incorrect mathematically.


Those are my suggestions and comments. I would greatly appreciate
it if the people who signed up to work on this project could have
the decency to at least look at this and comment. This is a group
effort, thus input is expected from those in the group.

[> Robert Hayden <] [> ____ Come out, Come out <]
[> <] [> \ /__ Wherever you are! <]
[> rahayden@***** <] [> \/ /
[> aq650@****.INS.CWRU.Edu <] [> \/

Further Reading

If you enjoyed reading about Equation Summaries, Comments, Suggestions., you may also be interested in:


These messages were posted a long time ago on a mailing list far, far away. The copyright to their contents probably lies with the original authors of the individual messages, but since they were published in an electronic forum that anyone could subscribe to, and the logs were available to subscribers and most likely non-subscribers as well, it's felt that re-publishing them here is a kind of public service.