F-One Jack

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F-One Jack (エフワンジャック), or Jack for short, is a Machine Robo from Cronos and later Electronic Planet B-1, where he would become a member of the Battle Hackers.

He is one of the Wheelmen and thus among the fastest Machine Robo members thanks to his V6 engine, which has an output of 1200 horsepower and can push him to speeds of 812kmph. In vehicle mode he uses a Vector Backfire and in robot mode he uses a Shoulder Cannon.

Fiction[edit | edit source]

Machine Robo: Revenge of Cronos cartoon[edit | edit source]

Voice actor: Kenichi Ono

F-One Jack largely used his speed to smuggle contraband around Cronos with Hot Rod Joe. At one point in their smuggling career the pair were caught in a shower of acid rain and needed Bike Robo to fetch Metal Laster from Vira for them. The pair then kept out of the Machine Robo war with the Gyandlar until the Battle Base came under attack from a new Gyandlar weather machine. Kendō Robo and Rom Stol decided they need a powerful explosive from Cleo City to take the machine out; however, the Alpha and Beta compounds used to make it were too volatile to be transported by air or together, while only having a three-hour lifespan. Pro Truck Racer suggested using the Wheelmen, and while several of the Machine Robo were unsure due to the Wheelmen being amoral smugglers Rom ruled they had little choice. Rom, Pro Truck Racer and Bike Robo set off to meet them, with the latter calling in his favour to secure their help; however, unknown to the Machine Robo the Wheelmen had already been contacted by the Gyandlar and were planning to sell the group out. The pair picked up the compounds from Cleo City but then had a change of heart, with F-One Jack faking an injury so he could tell the Gyandlar the deal was off; they reacted angrily but he was saved by Rom and Pro Truck Racer. He joined them in saving Hot Rod Joe from Garudi. The explosives were then used by Pro Truck Racer to destroy the weather machine, and the reformed Jack joined the Machine Robo army.Full Power, Wheelmen! He later participated in the final victorious battle against Gadess and the Gyandlar. The Final Battle of Cronos

Machine Robo: Battle Hackers cartoon[edit | edit source]

Voice actor: Nobuyuki Furuta

After the Machine Robo left Cronos and passed a dimensional gateway they re-emerged as the citizens of the Algo Republic on Electronic Planet B-1, where the Wheelmen were part of the Silver Wolves, the Algo Army's ground forces in the battle against the Gurendos. Here Jack had a lighter, more fun-loving personality. He was part of the team led by Silver Wolves commander Pro Truck Racer to investigate the landing of the Good Luck, running a gauntlet of Gurendos fire to reach his leader and help the humans Akira Amachi, Luke Stewart and Mia White. Burning Electronic Planet He later joined the other Wheelmen in making fun of Akira and Luke when they eyed up the Power Suits and suggested piloting them in combat. Jet Riser! Scramble! Nevertheless F-One Jack allowed Akira to 'drive' him afterwards, though the group came under attack from Gakurandar and Kariagen, who drove them into a trap set by Sorikondar and Suji. The human's reflexes saved Jack from one projectile but the group were boxed in by the trap - before being saved by R. JeTan and the Battle Hackers. Strongest Warrior - R.JeTan! The Wheelmen later helped save Akira from Devil Satan 6 after he impulsively set out alone in the Jet Riser and uncovered a plan to destroy the important bridge to Crystal City. Jet Riser - Full Fire!


The Wheelmen later switched from the Silver Wolves to the Battle Hackers. Return to the Good Luck Later Jack went on patrol with Garzack, Hot Rod Joe and Akira. The group got pinned down by Gurendos troops, and Garzack lost his Garfire SP in the scuffle. It was found by Suji, then used by Sorikondar to destroy a store deep within Crystal City. Stolen Garfire-SP Later in Crystal City he raced against Akira in Hot Rod Joe and Patricia in Buggy Wolf, coming second to Joe. He took this with bad grace, and after Akira was instrumental in the Battle Hackers helping Rotary Kid and Twincam Jimmy to save a city from destruction was once again the butt of the human's jokes. Rotary Kid and Twincam Jimmy While relaxing during downtime at base, F-One Jack amused the other Battle Hackers with an impression of Patricia that involved him donning a wig. Muddy Duel During a mission to space in Apollo Robo, F-One Jack was part of the team that raided a Gurendos spaceship that attacked them. Crystalium Recovery Operation F-One Jack and Hot Rod Joe were able to escape the mind-controlling satellite beams used by Sorikondar and get the humans to the Battle Hackers. The group then set out to destroy the device in Apollo Robo and Big Shuttle Robo. While the mission was successful Big Shuttle Robo - with Jack onboard - was damaged in the process and in danger of being sucked into a black hole, before RIM devised a risky strategy to save them. Destroy the Fortress Satellite Later Jack was with the Battle Hackers when Sorikondar launched another attempt to wipe them out, cutting them off from the rest of the Algo Army with a minefield. Along with Zen and Akira he was able to deactivate the mines, which were then attached to the Gurendos captain by Drill Crusher, ultimately killing him. R. JeTan! Run! Jack then worked with the Battle Hackers as they infiltrated and destroyed a huge mobile Gurendos base; however, Mach Blaster was captured after sacrificing himself to buy the rest of the team time to escape, much to Akira's distress. Captive Mach Blaster He later joined the Battle Hackers' raid on the Gurendos' Blood Country headquarters, infiltrating the tunnels below and helping rescue Mach Blaster. Goodbye - Battle Forever

Toys[edit | edit source]


Machine Robo: Revenge of Cronos[edit | edit source]

Wheelmen[edit | edit source]

  • F-One Jack (1987)
    • ID number: MRBH-2
    • Accessories: none
F-One Jack was the 2nd figure in Bandai's Wheelmen series issued in the Machine Robo: Revenge of Cronos toyline, converting from Formula One-style race car to robot, the latter standing somewhere between the size of a Rock Lord and a Super GoBot. The toy features a friction motor in vehicle mode, rubber tyres and a large proportion of diecast, with the engine detailing emphasised. The robot mode has decent articulation, including movement at the shoulders, elbows, knees, ankles and hips - though the later is only outwardly parallel to the body. He also had claw-like hands in robot mode. Like all of the first wave of Wheelmen toys he came with a sheet of additional racing car decals; these were identical across the releases and could be applied wherever the buyer wanted, to fit in with the custom car vibe. Initially the sheets included real racing sponsors, including Elf, Shell, Texaco, Marlboro, Lucky Strike and Bridgestone; at some point this was replaced by a sheet instead featuring bowdlerised versions of the same names, presumably in reaction to some sort of legal issue. The legal issue does not seem to be that a children's toy featured cigarette branding. F-One Jack retailed at ¥1200.
  • Like all of the Wheelmen, F-One Jack was never released outside of Japan.