I had a rather exciting half-week away from internet. And my galactic map is even more convoluted.
So after seeing neither hide nor hair of NPRs beyond a single survey ship cruising through Sol, I suddenly ran into three all at once. One of my survey vessels jumped into Basil in the middle of a massive confrontation between two NPRs, one side of which was pounding the other. The victor decided it would be a good idea to pop my survey ship, so I stomped their fleet into the ground with a horde of FACs and frigates, and then nuked them into submission. That was good enough, as it added 1.4b population to my empire, along with a trio of JGCs, as well as a few bits of tech. In addition, I opened hostilities with the other NPR, and found that they are still using nuclear pulse engines, so they won't be an issue. As for the race I'm fighting, the Barrackpur, they are either a large empire (as they had another, smaller world that I wiped entirely in the same system as the one I capped), or are now stuck fighting me from a minor colony, as I'm still seeing occasional ships. Oh, and they like radically different conditions, which will make them good colonists.
Specifically:
+ 0.444 to 0.148 Oxygen atm
+ -11.7 to -61.7 degrees Celsius
+ 0.53 to 2.11 g
+ 3.38 atm max
Better yet, less than two days after starting my invasion, another of my ships found the system of Manticore (FUCK YES), with three habitable worlds (one 0.00 cost) with another NPR sitting on the best one. They were tougher, but I still pounded them flat. Even with my fleet sitting on their shipyards and killing their colony ships and FACs as they completed, with their ground forces gone, and with me periodically nuking them, they didn't surrender. So I dropped 400 dirty nukes on them, and they wisely gave up. They didn't have any ships left, and had lost quite a bit of industry, but they bumped me two tech levels in AS, EW FC range, and Gauss cannons (as well as one in mining rate, Jump Drive SQ size and distance from point, and one in cloak efficiency), so it was well worth it.
The Danais (the fellows I conquered) help round out environ tolerances as well:
+ 0.087 to 0.299 atm Oxygen
+ 31.8 degrees to 77.8 degrees
+ 0.64 to 1.68 g
+ 4.47 atm max
So for not much effort, I tripled my population and industrial base, got close to 50 new shipyards, got a trio of JGCs, got a great tech boost, and greatly expanded my range of 0.00 col cost worlds.
Aggressive imperialism is great.
Also, currently laying down the first hulls for my new generation of missile destroyers. I'm planning for 5-ship squadrons, with three basic destroyers, a sensor-heavy leader with a number of sensor buoys for JP and planet picketing, and a Jump Destroyer with an engine large enough to ferry an entire squadron.
Pegasus class Missile Destroyer 16,000 tons 1121 Crew 3306.41 BP TCS 320 TH 2600 EM 900
8125 km/s Armour 5-56 Shields 30-300 Sensors 66/66/0/0 Damage Control Rating 30 PPV 15.84
Maint Life 4.87 Years MSP 1292 AFR 204% IFR 2.8% 1YR 90 5YR 1349 Max Repair 288 MSP
Magazine 571
Internal Confinement Fusion Drive E5 (26) Power 100 Fuel Use 50% Signature 100 Armour 0 Exp 5%
Fuel Capacity 610,000 Litres Range 137.3 billion km (195 days at full power)
Delta R300/12.5 Shields (12) Total Fuel Cost 150 Litres per day
CIWS-250 (8x6) Range 1000 km TS: 25000 km/s ROF 5 Base 50% To Hit
Size 4 Missile Launcher (33% Reduction) (12) Missile Size 4 Rate of Fire 400
Missile Fire Control FC141-R20 (2) Range 141.7m km Resolution 20
Mjolnir-4a (143) Speed: 30,100 km/s End: 44.3m Range: 80.1m km WH: 9 Size: 4 TH: 301 / 180 / 90
Active Search Sensor MR141-R20 (1) GPS 5760 Range 141.7m km Resolution 20
Thermal Sensor TH6-66 (1) Sensitivity 66 Detect Sig Strength 1000: 66m km
EM Detection Sensor EM6-66 (1) Sensitivity 66 Detect Sig Strength 1000: 66m km
Missile to hit chances are vs targets moving at 3000 km/s, 5000 km/s and 10,000 km/s
This design is classed as a Military Vessel for maintenance purposes
Pegasus-J class Jump Destroyer Escort 16,000 tons 1195 Crew 3353.93 BP TCS 320 TH 2600 EM 900
8125 km/s JR 5-250 Armour 5-56 Shields 30-300 Sensors 66/1/0/0 Damage Control Rating 25 PPV 7.92
Maint Life 1.31 Years MSP 655 AFR 409% IFR 5.7% 1YR 402 5YR 6030 Max Repair 441 MSP
Magazine 195
J16000(5-250) Military Jump Drive Max Ship Size 16000 tons Distance 250k km Squadron Size 5
Internal Confinement Fusion Drive E5 (26) Power 100 Fuel Use 50% Signature 100 Armour 0 Exp 5%
Fuel Capacity 565,000 Litres Range 127.1 billion km (181 days at full power)
Delta R300/12.5 Shields (12) Total Fuel Cost 150 Litres per day
CIWS-250 (8x6) Range 1000 km TS: 25000 km/s ROF 5 Base 50% To Hit
Size 4 Missile Launcher (33% Reduction) (6) Missile Size 4 Rate of Fire 400
Missile Fire Control FC141-R20 (1) Range 141.7m km Resolution 20
Mjolnir-4a (49) Speed: 30,100 km/s End: 44.3m Range: 80.1m km WH: 9 Size: 4 TH: 301 / 180 / 90
Active Search Sensor MR141-R20 (1) GPS 5760 Range 141.7m km Resolution 20
Thermal Sensor TH6-66 (1) Sensitivity 66 Detect Sig Strength 1000: 66m km
Missile to hit chances are vs targets moving at 3000 km/s, 5000 km/s and 10,000 km/s
This design is classed as a Military Vessel for maintenance purposes
Pegasus-S class Destroyer Leader 16,000 tons 1277 Crew 5524.1 BP TCS 320 TH 2640 EM 900
8250 km/s Armour 5-56 Shields 30-300 Sensors 550/1/0/0 Damage Control Rating 21 PPV 2.7
Maint Life 0.02 Years MSP 216 AFR 2048% IFR 28.4% 1YR 10414 5YR 156208 Max Repair 2400 MSP
Magazine 18
Internal Confinement Fusion Drive E7 (22) Power 120 Fuel Use 70% Signature 120 Armour 0 Exp 16%
Fuel Capacity 720,000 Litres Range 115.7 billion km (162 days at full power)
Delta R300/12.5 Shields (12) Total Fuel Cost 150 Litres per day
CIWS-250 (6x6) Range 1000 km TS: 25000 km/s ROF 5 Base 50% To Hit
Size 3 Box Launcher (6) Missile Size 3 Hangar Reload 22.5 minutes MF Reload 3.7 hours
Missile Fire Control FC70-R20 (1) Range 70.8m km Resolution 20
Size 3 Active Sensor Buoy (6) Speed: 0 km/s End: 240d Range: 0m km WH: 0 Size: 3 TH: 0 / 0 / 0
Active Search Sensor MR1180-R20 (1) GPS 48000 Range 1,180.6m km Resolution 20
Active Search Sensor MR26-R1 (1) GPS 240 Range 26.4m km Resolution 1
Thermal Sensor TH50-550 (1) Sensitivity 550 Detect Sig Strength 1000: 550m km
Missile to hit chances are vs targets moving at 3000 km/s, 5000 km/s and 10,000 km/s
This design is classed as a Military Vessel for maintenance purposes
And yeah, I'm being lazy and playing with maint. off this time around.