From: miller@math.psu.edu (Donald S Miller)
Description: SFB: How to calculate BPVs (long!) (was: SFB construction?)

Here's a system I use to calculate BPV which gives results fairly close
to their (Task Force Games) BPV's:
 
1. Add together the box value for each box on the SSD (values found below).
2. Apply the following increases: +50% if the ship is a 1X design, +30%
   if the ship has a cloaking device, +10% for stealth (and others that
   I forget right now, sorry!)
3. Divide the result by 2.5.  This is the Economic BPV of the ship.

Box values (some of these are ripped from SFB Commander's edition annexes):
 
Hull (F,A)      1
Hull (C)        1.2
Cargo           1
Tran            1
Trac            1
Trac-Mech Link  2
Shuttle         1 for each box, 1 for each bay, 2 for each admin shuttle
Fighter Box     +1 more (but don't pay the 2 admin shuttle cost)
Launch Tube     +1 more
Lab             2
Probe           2
Repair          3
Hold (2X)       4
Armor           1.5
Bridge          3
AuxCon          3
Emer            3
Flag            3
Scty (extra)    2
Btty (1 pt.)    1
Btty (5 pt.)    5
Warp (L,R)      4 (5 for orion)
Warp (C)        5 (6 for orion)
Impulse         3 (4 for orion)
PF Warp Pack    3
APR             2
AWR             3
Shields         1/6
PA Panel        4
Sensor "6"      2
Sensor "5"-"1"  1
Sensor "0"      0 (no more than 1 per ship)
Scanner "0"     2
Scanner "1"-"8" 1
Scanner "9"     0 (no more than 1 per ship)
DamCon          equal to number in box, no more than one "0" per ship
ExcDam          2 for every box beyond: hull/3+1 (round down)
Ph-1            2 *
Ph-2            1.5 *
Ph-3            1 *
Ph-4            4 *
Ph-G            3 *
Photon          5 *
Disr            4 *
Fusion          2 *
Hellbore        8 *
PPD             20 *
Pl-D            5 *
Pl-F            4 * (-1 for each box beyond the first for ISC)
Pl-L            7 * (without 1X tech, this a Pl-G that cannot upgrade to Pl-S)
Pl-G            10 *
Pl-S            15 *
Pl-M            17.5 *
Pl-R            20 *
Drone-A         4
Drone-B         5
Drone-C         5
Drone-G         6
ADD             2 ?
ESG             8
SFG             20
Option Mount    6 * (side or wing), 8 * (centerline)
TRH             10 *
TRL             5 *
Hangar (size4)  28
Crew Unit       0.1
Passenger       0.05
Brd Prt         0.5
Deck Crew       0.5
Mauler          1 per power box connected to it
Spec Sensor     10
DisDev          15 ?
Web Generator   4 ?
Web Snare       6 ?
Web Caster      12 * ?
DERFACS         2
UIM             5 ?
OAKDISC         3 ?
x2 Drn Control  3
x3 Drn Control  5
 
 
* Apply the following multipliers based on the weapon's arc in degrees:
120     x1
150     x1.125
180     x1.25
210     x1.375
240     x1.5
270     x1.625
300     x1.75
330     x1.875
360     x2
 
Forgive any errors or omissions.  There are probably a lot of systems I
have forgotten (I am doing this by memory believe it or not).  If there
is any interest I can get my real list from home and post it (that list
is much longer and includes a FASA Star Trek to SFB conversion).  This
is roughly based on the old (S3.3) in Commander's Edition but with a
constant divisor.  This system has some obvious problems, but it does
give BPV's usually within 20% of their reported TFG value (again, with
certain exceptions).
 
Donald Miller