I was hacking in the TBL entry for the GTF Jupiter. I had gotten into Fred2, but when I attempted to put it in the mission Fred2 crashed. The TBL file is 379 KB, and this is the enty: 
$Name:                          GTF Jupiter
$Short name:            TFight
$Species:                       Terran
+Type:                          XSTR("Adv. Space Superiority", -1)
+Maneuverability:       XSTR("Good", 2940)
+Armor:                         XSTR("Medium", -1)
+Manufacturer:          XSTR("Triton Dynamics", -1)
+Description:         XSTR( " ", -1)
$end_multi_text
+Tech Description:
XSTR("This craft was designed to replace the Myrmidon as the primary space superiority fighter of the GTVA. With the same number of gun mounts, it's faster and can carry a more diverse payload, but at the sacrifice of secondary payload, with even less than the Ulysses.", -1)
$end_multi_text
+Length:          17 m
+Gun Mounts:      6
+Missile Banks:   1
$POF file:                      jupiter.pof
$Detail distance:       (0, 80, 300, 900)
; $ND:                      42 42 244
$Show damage:           YES
$Density:                       1
$Damp:                          0.1
$Rotdamp:                       0.35
$Max Velocity:          0.0, 0.0, 80.0                  ;; in x/y/z -- z only specified forward.  use special tokens for backward movement
$Rotation time:         3.2, 3.2, 6.0
$Rear Velocity:         0.0
$Forward accel:         3.0
$Forward decel:         2.5
$Slide accel:           0.0
$Slide decel:           0.0
$Expl inner rad:        25.0
$Expl outer rad:        55.0
$Expl damage:           15.0
$Expl blast:            1000.0
$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
$Allowed PBanks:        ( "Subach HL-7" "Akheton SDG" "Morning Star" "Prometheus S" "Prometheus R" "Lamprey" "Circe" "Maxim" "UD-8 Kayser" "Targeting Laser")
$Allowed Dogfight PBanks:        ( "Subach HL-D" "Prometheus D" )
$Default PBanks:        ( "Subach HL-7" "Prometheus R" )
$Allowed SBanks:        ( "Rockeye" "Tempest"  "Hornet" "Tornado" "Hornet#Weak" "Harpoon" "Harpoon#Weak" "EMP Adv." "TAG-A" )
$Allowed Dogfight SBanks:    ( "Tempest D"  "Hornet D" "Harpoon D" )
$Default SBanks:        ( "Harpoon" )
$SBank Capacity:        ( 30 )
$Shields:                       450
$Shield Color:      100 100 255
$Power Output:          9.0
$Max Oclk Speed:        94.0
$Max Weapon Eng:        120.0
$Hitpoints:                     240
$Flags:                         ( "player_ship" "fighter" "in tech database")
$AI Class:                      Captain
$Afterburner:           YES
   +Aburn Max Vel: 0.0, 0.0, 160.0
   +Aburn For accel:       1.0
   +Aburn Fuel:            400.0
   +Aburn Burn Rate:       50.0
   +Aburn Rec Rate:        25.0
$Countermeasures:       25
$Scan time:                     2000
$EngineSnd:       128                   ;; Engine sound of ship
$Closeup_pos:           0.0, 0.0, -22
$Closeup_zoom:          0.5
$Shield_icon:           shield-jupiter
$Ship_icon:                     iconfighter01
$Ship_anim:                     ssjupiter
$Ship_overhead: loadjupiter
$Score:             12
$Trail:
   +Offset:      -7.75 -2.8 0.75
   +Start Width:   0.25
   +End Width:   0.05
   +Start Alpha:   1.0
   +End Alpha:   0.0
   +Max Life:   1.0
   +Spew Time:   60
   +Bitmap:   Contrail01
$Trail:
   +Offset:      7.75 -2.8 0.75
   +Start Width:   0.25
   +End Width:   0.05
   +Start Alpha:   1.0
   +End Alpha:   0.0
   +Max Life:   1.0
   +Spew Time:   60
   +Bitmap:   Contrail01
$Subsystem:                     communication,  10, 0
$Subsystem:                     navigation,             10, 0
$Subsystem:                     weapons,                        20, 0
$Subsystem:                     sensors,                        10, 0
$Subsystem:                     engines,                        35, 0
Can anyone help me?
------------------
Webmaster of 
GTD WolfAny and all Bosch Beer is hereby stolen - ahem, confiscated - by the GTVA - No, ensign, don't get out the cups yet - and must be sent to the GTXD Mars Class Destroyer, the GTD Wolf - Corporal, I said we wanted pizza, not hamburgers! - stationed in this system. Any reluctance to comply and we'll make you our pinata - ahem, PoW - until further notice.