Bishoujo Yuugekitai Battle Skipper
English title: Battle Skipper
Japanese title: 美少女遊撃隊バトルスキッパー
Alternative titles: Battle Skipper School, Lightning Attacker Exstars Battle Skipper
Type: OVA
Source: Original
Episodes: 3
Status: Finished Airing
Aired: Aug 23, 1995 to Dec 16, 1995
Duration: 27 min per ep
Rating: PG-13 - Teens 13 or older
Studios: Artmic
Producers: Tokyo Kids, Victor Entertainment
Licensors: Central Park Media
Genres: Comedy, Sci-Fi
Themes: Mecha

Despite the title, this is not a feature but the three-part OAV Battle Skipper (1995), which Takashi Watanabe directed before going on to Slayers. 

When the members of the Etiquette Club at St. Ignacio's School for Girls go down the tubes--literally--they acquire the skimpy outfits they wear to pilot the unfortunately named BSs or Battle Skippers, state-of-the-art military mecha. As "Extars," the Etiquette Club members fight to eliminate evil from the world, which means the bizarre schemes of Sayaka, the nasty, super-rich president of the rival Debutante Club, and her flunky, Todo. 

The series was created to promote a line of robot toys from Tomy, and viewers who are willing to accept high school girls' quarrels escalating into battles involving satellite weaponry may enjoy these silly adventures.

(Source: AniDB)