Ship Modifications 1. Take an existing SSD as the basis for your construction or modification. You may not seperate the ship into sections and modify each piece seperately. You may not modify a ship that has already been modified by these rules. 2. Systems: A ship may only use systems of it's race. This is defined as any system that appears on at least three (3) SSDs of that race. If a system is added, it increases the BPV by the amount given. If a system is removed, it reduces the BPV by half of the amount given. If one system is replaced with another, you use the difference in the two BPVs (you don't have to sell one system for half price than buy the other at full price). 3. Shields/PAs: You may add up to (6-Size Class)*6 shield boxes or, in the case of Andros, (5-Size Class) PA panels to the ship. They may be arranged however you wish. Shields and PAs may be removed with no limits. PAs that are removed do not lower the PA cost. Shields and PAs cannot be moved around (changing their facing) except by removing them, and then adding new boxes using the limit above. BPV Cost: Shield = 1/6, PA = 4. 4. Tracks: Up to (6-Size Class) boxes may be added among Sensor, Scanner, DamCon, and ExcDam. No track may gain more than 1 box. For DamCon, an added box can be at most 2 higher than the highest box on the existing track. Sensor, Scanner, and DamCon may be removed with no limit, except the lowest box in each track (which cannot be removed by any means). BPV Cost: Sensor "6" = 2, Sensor "5" to "1" = 1, Scanner "0" = 2, Scanner "1" to "8" = 1, DamCon "rating" = rating, ExcDam = 2. 5. Control systems: You may add up to (5-Size Class) control spaces to the ship. The control spaces may be of any type, as long as the race has the control space in question (no Flag on Klingons, no Scty on non-Klingons). Control Spaces are defined to be: Bridge, Emer, Aux, Flag, Scty. Control spaces can be removed with no limit except for the last box of Bridge. Control spaces cannot be changed from one type to another directly. BPV Cost: 3 for any control space. 6. Weapons systems: Weapons cannot be added at all, but they can be changed from one type to another. You cannot add space (defined in the exact way as Orion Option Mounts) or boxes, but space or boxes can be reduced. Thus, two 1 space PL-F's (2 spaces & 2 boxes total) may be merged into one 2 space PL-G (2 spaces & 1 box) but not vice versa. For this rule, Ph-3's and ADD-6's are 1/2 space when adding or removing. In no case may you add more than (6-Hull Size) of any given weapon, i.e. a size 4 Fed can change at most 2 weapons into Photons. If your ship ends up with (6-Size Class)*2 torpedo weapons or more, it is most likely subject to shock. The BPV adjustment is calculated by simply adding the difference in the Option Mount costs. The BPV may be lowered by this process. For this purpose, Wing/Side Options are 1 space and "+1" BPV, Centerline Options are 1 space and "+2" BPV. After you have changed weapons around, remove the arcs on all new ESGs and Drone/ADD Racks. ESGs and Drone/ADD Racks that become other weapons (that require arcs) can have any continuous 120 degree arc you desire (such as FA). In all other cases the new weapon arc must be continous and completely contained within the old weapon arc (i.e. an FX arc may be reduced to FH or FA). PHTN, HB, PL-R, SFG, PPD, WC, OPT are limited to a 120 degree arc. PL-D, TRH, TRL, Fusion are limited to a 180 degree arc. Disruptor and Snare are limited to a 240 degree arc. PL-S/G/F are limited to a 120 degree arc, but may have a swivel as long as the new arc is completely contained within the old arc (they cannot have a swivel if they came from an ESG or Drone Rack). No where in these rules is it legal to widen an arc on a weapon. No where in these rules is it legal to add a mauler. A mauler (the entire weapon, not just one arrow) may be removed, reducing the BPV of the ship by 0.5 per box connected. 7. Power systems: Up to (6-Size Class)*2 power boxes may be added to the ship, at the costs below. Power systems may be changed into other power systems, again as long as the race has the relevant technology. The following sum must be preserved: (# Warp boxes)/3+(# Torpedo weapons). Thus, if your design has 3 more Warp boxes than the original, you must have one less Torpedo weapon than the original (this is the effect of "Hot Warp" technology). The ship must have at least 1 remaining Impulse box. Power systems may be removed without restriction. BPV Cost: C Warp = 5, L or R Warp = 4, Impulse = 3, AWR = 3, APR = 2, Battery (1 point) = 1.5, Battery (5 point) = 5.5, Emer Impulse = 4. 8. General systems: Up to (6-Size Class)*3 - (# of Power systems you added) - (# of Control systems you added) General system boxes may be added. 'General systems' are those included in the BPV Cost list below. In addition, General systems may be changed from one to another without restriction. At most 1 shuttle door may be added, for 2 BPV. General systems may be removed without restriction, but the ship must have at least (6-Size Class)*2 Hull boxes remaining in any case. BPV Cost: F or A Hull = 1, C Hull = 1.5, Lab = 2, Tran = 1.5, Trac = 1.5, Trac-Mech = 2, Shuttle = 2, Fighter = 2, Fighter with Launch Tube = 3, Repair = 3, Cargo = 1.5, Probe = 2, NWO = 5. 9. Special systems: Cloaking devices, UIM, DERFACS, OAKDISC, Ability to Double Engines, and other such things cannot be added. They can be removed: UIM = 4, DERFACS = 2, OAKDISC = 3, Double Engines = 1 per box, Cloak = 15% of final BPV, Stealth = 5% of final BPV, Nimble = 5% of final BPV. 10. Nothing else may be changed on the SSD. Movement Cost, Turn Mode, Size Class, Crew Units, everything else not mentioned in these rules do not change. The SSD may be redrawn (modifying its shape) for cosmetic purposes. Yes, you can make some questionable ships, such as the Fed CA with 30 C Warp and all Ph-G's armament. But is that a ship you would really want to fly? Don Miller