since nobody complained yet; the tbl-entry given in the txt can not be used as such - here is a corrected one (you migh replace the ML-16s)
$Name: GTT Corsair
$Short name: TTran2
$Species: Terran
+Tech Description:
XSTR(The GTT Corsair is a heavy assualt troop transport, used it situations too voitale for the GTT Eylsium.
Redesigned with mutch heavyer armor , extra turrets and thrusters. And with it's optimized powergrid the GTT Corsair gields twice as mutch power output as the Elysium., 3060)
$end_multi_text
$POF file: GTT_Corsair.pof
$Detail distance: (0, 2000, 4000, 10000)
$Show damage: YES
$Density: 1
$Damp: 0.2
$Rotdamp: 0.6
$Max Velocity: 0.0, 0.0, 45.0
$Rotation time: 4.0, 7.0, 6.0
$Rear Velocity: 0.0
$Forward accel: 6.0
$Forward decel: 1.0
$Slide accel: 0.0
$Slide decel: 0.0
$Expl inner rad: 50.0
$Expl outer rad: 200.0
$Expl damage: 200.0
$Expl blast: 500.0
$Expl Propagates: NO ;; If set to Yes, then when the ship dies, the explosion propagates through it.
$Shockwave Speed: 0.0 ;; speed shockwave expands at, 0 means no shockwave
$Default PBanks: ()
$Default SBanks: ()
$SBank Capacity: ()
$Shields: 0
$Power Output: 16.0
$Max Oclk Speed: 55.0
$Max Weapon Eng: 0.0
$Hitpoints: 8500
$Flags: ( "transport" "in tech database")
$AI Class: Captain
$Afterburner: NO
$Countermeasures: 0
$Scan time: 2500
$EngineSnd: 128 ;; Engine sound of ship
$Closeup_pos: 0.0, 6.0, -90
$Closeup_zoom: 0.5
$Score: 20
$Subsystem: turret01, 15, 1.0
$Default PBanks: ( "ML-16 Laser" )
$Subsystem: turret02, 15, 1.0
$Default PBanks: ( "ML-16 Laser" )
$Subsystem: turret03, 15, 1.0
$Default PBanks: ( "ML-16 Laser" )
$Subsystem: turret04, 15, 1.0
$Default PBanks: ( "ML-16 Laser" )
$Subsystem: engine, 25, 0
$Subsystem: navigation, 15, 0
$Subsystem: communication, 5, 0
$Subsystem: sensors, 10, 0
$Subsystem: weapons, 10, 0