TL-14 7500 Mj Meson Gun + notes

Date: Wed, 25 Oct 1995 17:20:11 -1600
From: Michael Bailey <pd82495@wapol.gov.au>
Subject: TL-14 7500 Mj Meson Gun + notes

As with the laser barbette, I've included the design notes to aid anyone new
to FF&S (hope it helps).

TL-14 7500 Mj Meson Gun (spinal mount)

1/ Length = 180m (arbitrary figure, this will fit on a 4000 t Open Frame,
8000 t 
                  Needle or 20000t Wedge)

2/ Discharge Energy = 7500 Mj (again arbitrary...)

3/ a) Effective length = 180 x 1.2 = 216 m
   b) Tunnel volume    = 13,500 m^3
   c) cross sectional  = 75 m^2
      (bore size       = 9.77 m)
   d) mass             = 8100 t
   e) price            = MCr 1350

4/ Effective range     = 216,000 km

5/ Beam pointer:  210,000 km (7 hexes) 
   Weapon short range = 210,000 km
   V = 4.2 m^3, M = 4.2 t, P = MCr 0.42

6/ Damage: DV = 5*(I^0.5)
            I = DE/(R/EL)^2 (round (R/EL)^2 to nearest 0.5

   Short range:  I = 7500/(210/216)^2 = 7500/1 = 7500
                DV = 433
   Med. range :  I = 7500/(420/216)^2 = 7500/4 (3.78 rounds to 4) = 1875
                DV = 216
   Long range :  I = 7500/(840/216)^2 = 7500/15 (15.12 rounds to 15) = 500
                DV = 112
   Extr. range:  I = 7500/(1680/216)^2 = 7500/60.5 (60.49 rounds to 65) = 124
                DV = 56

7/ a) Input energy = 7500/0.2 = 37500 Mj
   b) Homopolar generator (37500 Mj capacity)
      V = 1500 m^3, M = 3000 t, P = MCr 15
   d) Power requirements:
      ROF  10 = 208.3 MW
      ROF  50 = 1041 MW
      ROF 100 = 2083 MW

8/ Crew = (tunnel volume / 100) * control point multiplier
        = 13500/100 * 0.25 (CPM @ TL-14)
        = 34 (to nearest 1)
   
   34 x Crew workstations
   V = 238 m^3, M = 6.8 t, P = MCr0.068

Summary:

TL-14 7500 Mj Meson Gun (Spinal Mount)

V = 15242.2 m^3         Power:  ROF  10 = 208.3 MW
M = 11111.0 t                   ROF  50 = 1041 MW   
P = MCr 1357.088                ROF 100 = 2083 MW

Damage = 7:433 14:216 28:112 56:56

The Model 75M3 Meson Gun is probably the smallest spinal weapon found in
line-of-battle ships in the Solomani Navy.  The 75M3 is installed in (among
others) the 8000 t Diaz Class Auxilliary/Light Cruiser, as well as the 15000
t Moglichen Class Light Cruiser.  The weapon has also been adapted for use
in deep site planetary defense batteries.  
Michael Bailey (pd82495@wapol.gov.au)