Unguided Bomb

The Unguided Bomb (the free-fall high explosive bomb) is a recurring special weapon through the Ace Combat series, appearing in nearly all games from Ace Combat 04: Shattered Skies onwards. Lacking any special properties, it is the standard bomb for attack aircraft, and it usually comes in three sizes: small (500 lb Mk.82 and 250 kg FAB-250), medium (1000 lb Mk.83 and 500 kg FAB-500-M62), and large (2000 lb Mk.84 and FAB-1000). Small bombs is only in the Ace Combat 04:Shattered Skies game and denoted UGBS (Unguided Bomb (Small)). Medium bomb are designated as medium (Unguided Bomb (Medium), UGBM) only in Ace Combat 04: Shattered Skies game, in all the other games they are designated as Unguided Bomb (UGB) without specifying their weight.

Ace Combat 04: Shattered Skies
Aircraft that can use small iron bombs (UGBS): Aircraft that can use medium iron bombs (UGBM): Aircraft that can use large iron bombs (UGBL):
 * F-5E Tiger II (Mk.82)
 * F-16C Fighting Falcon (Mk.82)
 * Mirage 2000 (Mk.82)
 * MiG-29A Fulcrum (FAB-250)
 * F-4E Phantom II (Mk.83)
 * F-14A Tomcat (Mk.83)
 * F/A-18C Hornet (Mk.83)
 * F-15C Eagle (Mk.83)
 * EF-2000 Typhoon (Mk.83)
 * F-2A Viper Zero (Mk.83)
 * Su-35 Super Flanker (FAB-500-M62)
 * A-10A Thunderbolt II (Mk.84)
 * F-117A Nighthawk (Mk.84)
 * F-15E Strike Eagle (Mk.84)
 * Su-37 Terminator (FAB-1000)
 * S-37A (FAB-1000)

Ace Combat 5: The Unsung War
Aircraft that are compatible with unguided bombs:
 * F-5E Tiger II (UGB Mk.83 x12)
 * A-6E Intruder (UGBL Mk.84 x10)
 * F-16C Fighting Falcon (UGB Mk.83 x14)
 * Mirage 2000D (UGB SAMP EU3 (French version Mk.83) x14)
 * MiG-29A Fulcrum (UGB FAB-500-M62 x14)
 * MiG-1.44 Flatpack (UGBL FAB-1000 x18)

Ace Combat Zero: The Belkan War
Aircraft capable of using unguided bombs:
 * F-5E Tiger II (UGB Mk.83 x10)
 * J35J Draken (UGB Mk.83 x8)
 * F-1 Kaizen (UGB Mk.83 x12)
 * MiG-21bis Fishbed (UGB FAB-500-M62 x10)
 * F-4E Phantom II (UGBL Mk.84 x8)
 * F-16C Fighting Falcon (UGBL Mk.84 x14)
 * MiG-31 Foxhound (UGBL FAB-1000 x12)
 * Mirage 2000D (UGB SAMP EU3 x14)
 * Su-27 Flanker (UGBL FAB-1000 x8)
 * F-15C Eagle (UGBL Mk.84 x10)

Ace Combat X: Skies of Deception
In the game Ace Combat X: Skies of Deception, aircraft uses only US bomb Mk.80 type. Planes that use UGBs (Mk.83): Planes that use UGBLs (Mk.84):
 * Mirage 2000D
 * F-5E Tiger II
 * MiG-29A Fulcrum
 * Su-27 Flanker
 * JA-37 Viggen
 * XFA-24A Apalis
 * A-6E Intruder
 * F-1 Kaizen
 * F-117A Nighthawk
 * F-4E Phantom II
 * MiG-31 Foxhound
 * MiG-1.44 Flatpack

Ace Combat 6: Fires of Liberation
Aircraft compatible with unguided bombs:
 * F-2A Viper Zero (UGB Mk.83)
 * F-15E Strike Eagle (UGB Mk.83)
 * F-16C Fighting Falcon (UGB Mk.83)
 * Su-47 Berkut (UGB FAB-500-M62)

Ace Combat: Joint Assault
Also, as in the game Ace Combat X: Skies of Deception, aircraft uses only US bomb Mk.80 type.

Aircraft that can use Unguided bombs (Mk.83): Aircraft compatible with UGBLs (Mk.84):
 * AJS 37 Viggen
 * F/A-18E Super Hornet
 * F-5E Tiger II
 * Su-27 Flanker
 * MiG-29 Fulcrum
 * XFA-24A Apalis
 * Mirage 2000D
 * A6M5 Type Zero Carrier Fighter
 * F-117A Nighthawk
 * F-4E Phantom II
 * MiG-31 Foxhound
 * MiG-1.44 Flatpack
 * F-1 Kaizen
 * A-6E Intruder
 * A6M5 Type Zero Carrier Fighter
 * F6F-5 Hellcat

Ace Combat: Assault Horizon
Aircraft that can drop UGBs:
 * F-15E Strike Eagle (2000 lb Mk.84)
 * F-4E Phantom II (2000 lb Mk.84)
 * Su-25TM Frogfoot (500 kg FAB-500-M62)
 * Ka-50 Hokum (FAB 500-M62)