Time is 290 build points divided by build power. Drain is mass and energy per second while it is building, so more build power finishes sooner and costs the same total, but pulls harder on the economy.
Survivability
155 HP
2.87 / mass
Wreckage
Mass44
Mass in water26
Health140
Per veterancy level
Health+16
Regen+1hp/s
Mass to kill108
Mobility & intel
Speed3
Turn rate310
Vision radius20
Worth knowingfrom blueprints
Cannot target airreaches land, water, seabed only
HoverCrosses water on the surface, and can be hit by torpedoes while doing it.