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Transformers: Generation 1
A violent Decepticon. Transforms into a bright red fighter jet. His breastplate transforms into a miniature mechanical falcon. He is proud of his speedy flight power which surpasses that of Leozack. His final attack is called the "Blizzard Crow" which freezes the air, shaping it into an ice needle which is then shot at the enemy.  He combines with 5 other Breast Force members to form Liokaiser.
The Breast Force was named one of the top Unfortunately Named Transformers by Topless Robot in 2009.
Gaihawk spent many episodes of Victory imprisoned. He was later freed by his Breast Force comrades and proceeded to massacre his guards.
Shortly after rescuing Gaihawk, Leozack reveals to the other Breast Force members (save Hellbat) that he plans to replace the untrustworthy Hellbat with Deathcobra. Leozack mentions that he and Deathcobra had worked together in the past, and that the new arrival would be a much more reliable teammate than Hellbat. Hellbat (having spied on the others and learned of the plan) attempts to convince Deathcobra to go away. Unluckily for him Deathcobra bluntly refuses, determined to keep his word and meet with his old friend Leozack. Following an altercation, Hellbat accidentally kills Deathcobra and frames the Autobots. When Star Saber arrives shortly after Hellbat slew Deathcobra, Leozack furiously orders the team to unleash their secret weapon: their combined form Liokaiser. Liokaiser nearly killed Star Saber, but the arrival of God Ginrai was just barely enough to force the combiner to retreat.
In episode #23, "Fight to the Death!! Antarctic Battle", the Breast Force drains energy from the Antarctic, melting the polar ice. The Multiforce aid people trapped in a flood in South America when Star Saber orders them to meet him at a United Nations research base in the Antarctic. Wing and Mach arrive first and are confronted by Liokaiser. Waver tows in the rest of Multiforce by sea and despite forming Landcross they are outclassed by Liokaiser’s ability to turn invisible. Star Saber and Galaxy Shuttle arrive to help in the fight as Jan, Stakeout and Seawatch help evacuate the human scientists from the U.N. base. Liokaiser continues to best the Autobots in battle thanks to his ability to turn invisible, but as the Decepticon gestalt is about to finish off Victory Saber, Deathsaurus steps in and insists that he have a hand in the demise of his enemy. Star Saber takes the opportunity to take the battle to the air, matching Deathsaurus’ deadly wings with his skill. Galaxy Shuttle takes out the Decepticon energy collector with an energy blast and the Decepticons retreat in the Thunder Arrow. The humans scientists thank the Autobots for their help.
The Breast Force appears in episode #24 "Crisis! Ambush in the Desert." Greatshot patrols the galaxy for Decepticons and comes to Earth where he spots the Decepticon ship Thunder Arrow. The Dinoforce attack an oil field in Saudi Arabia for its energy. When the Autobots arrive they are ambushed by the Breast Force. The Autobot Brainmasters form Road Caesar, but it doesn't help. Greatshot comes to the rescue as Star Saber calls for help. Deathsaurus arrives to take his anger out on Greatshot. Blacker injures himself saving Greatshot from an attack. Star Saber and Greatshot take on Deathsaurus and the Breast Force. The Breast Force retreats when they became too injured to combine.
In episode #25 "A Deadly Battle" Blacker recovers at the Autobot Shuttle Base under the care of the Rescue Patrol. God Ginrai contacts Star Saber from space wanting to know about Blacker's injuries and offering to help if the Autobots on Earth need him. In the Thunder Arrow the Decepticons plan their next mission, with member of Breast Force wanting revenge on Greatshot and Deathsaurus closely watching Leozack. The Breast Force are sent to attack an Autobot garrison in Asia. Star Saber receives an SOS from the garrison orders the Brainmasters to remain at the base as he, the Rescue Patrol and Galaxy Shuttle respond. Blacker suspects the Autobot left without him and finds it shameful. The Breast Force focus their attacks on Star Saber and get the best of him. Blacker orders Braver and Laster to join in the fight, leaving him to protect the Shuttle Base. Liokaiser leads Star Saber into a trap where Deathsaurus is waiting. Realizing Star Saber is in danger Jan and Stakeout send an SOS, hoping Greatshot will answer. As Deathsaurus goes to deliver a fatal blow to Star Saber with his cannon God Ginrai arrives to block the blast. All the combatants are injured in the fighting and with the arrival of Braver and Laster the Decepticons flee. God Ginrai's wounds are severe and he collapses.
Liokaiser continued to be a major threat to the Autobots until he met his match in Victory Saber. In the final battle, he meets his demise when he is hurled by Victory Leo into a huge energy cannon and blasted into deep space.
Gaihawk appears among the Decepticons under the command of Banzai-Tron in the Transformers: Timelines story "Wings of Honor." He works along side Skyquake, Hooligan, Hellbat and Leozack. The Decepticons follow the Autobot ship Eight Track to the planet Beta-Nine, where they hope to beat them to the cargo that had crashed there aboard the Autobot ship Van De Graaff.
In the Timelines fiction Gaihawk's body is based on the Energon Starscream toy, but colored to match Gaihawk.
- Generation 1 Gaihawk D330 (1989)
- A Japanese exclusive and new mold that has not yet been reused.
- Combiner Wars' Liokaiser (unreleased)
- A figure set in which Dezarus replaces Leozack and Jaruga in forming Liokaiser; Gaihawk is present as a retool of Combiner Wars Air Raid.
- http://www.toplessrobot.com/2009/12/the_30_most_unfortunately_named_transformers.php The 30 Most Unfortunately Named Transformers By Kevin Guhl, Dec. 16 2009
- "Fight to the Death!! Antarctic Battle". Written by Hajime Suzuki. Transformers: Victory. September 5th, 1989. No. 23, season 1.