Mass Driver Range

By Upton, Django ·

TML message #7820From bundle 623

A while back someone wanted a better direct fire range formula for mass
drivers.
The following is one I worked out:
                      r          (  3.858*10^-6*Muzzle Vel     )
Short range (m) =------------- ln( ------------------------ +1 )
                  1.286*10^-5    (            r                )
r is in cm, muzzle vel is in m/s.
Send me a message if you want to know how I derived it!
Or if you don't want to use the natural log button on your calculator (or
spreadsheet) a very rough fix is to use 0.25 instead of 0.015 in GDW's
formula.

For indirect fire use 0.01 instead of GDW's 0.004.

I've noticed a lot of High Guard designs appearing recently so hear goes
with one of my favorites:

Empire class battle carrier

CB-V7414J4-000700-70005-T  MCr 213552.2  655250tons
Batteries         1   1                       TL=15
Batteries bearing 1   1                   Crew=3049
Marines=655 Fuel=288310 EP=26210 Agility=1
Carries 27 Vanguard class battleriders

Vanguard class battlerider

BR-K106KJ3-E49909-452N9-0  MCr 9886.6  10600tons
Batteries   6   1 62216                    TL=15
Batteries B.6   1 62216                 Crew=148
Marines=11 Low=74 Fuel=2014 EP=2014 Agility=6
Scoops & Purification, Frozen Watch
Backups: Meson Screen-9, Nuclear Damper-9,Computer-9fib

The first 2 Empire class carrying the first 54 Vanguards constituted a true
"Trillion Credit Squadron".

About the ongoing TCS v's FFW debate, the thing to remember is that the TCS
budget is based on the taxes paid by the average Imperial citizen that is
devoted to the upkeep of the Imperial navy. Just what the average citizen of
the Imperium actually is can only be determined by adding up the
population*TL of every world and dividing by the population of the Imperium.
I'm not going to do that but I think that the average citizen probably lives
on a TL 10-11 world with a class C starport. Thus by the time the money gets
spent building and maintaining ships on TL14-15 worlds with class A
starports its only worth half as much. Once you take into account the amount
of money diverted to run the bureaucracy and R&D,( to keep ahead of the
Zho's etc. Just think of the amounts of money spent by the likes of Lockheed
to not build aircraft :-)), you have probably Halved the money again! Then
take out the money required for expendables ( try adding up the cost of all
those nukes) and your not left with all that much to buy ships with!

Stay tuned for "The Compleat FF&S Errata" or "Why didn't they get someone to
proofread the bloody thing"

 -Django