Both have a childhood friend and the other main protagonist as love interests
Both main characters parents are not present
Both involve flying machines to protect humanity
Both involve girls created to fight
Both involve main character showing the other how to be a normal human
(Contains minor spoilers below)
A lot of common points, both purely physical / visual and also related to the story.
Futuristic universe (this one shows up some combat airplanes with a futuristic armament & design) ; main character with pink hairs (can't miss this detail) ; strong growing up relationship between her & the other male character
Main character having an issue to pilot (in Ditf : a mecha ; in GAF, an airplane) until the male character appears, etc
For now, many more similarities but I won't spoil. Just consider GAF is a younger (meaning closer in the time from reality) scifi anime, showing up air fights, strong male/female relationship, etc read more
Close story , sci-if anime , in darling there's a robots but in air force there's a air fighters , also close anime start but better end , there's aliens too wants to destroy the Humanity , and the heroine can't ride the air fighter without the hero , in short they are like a same anime
Technologically advanced weaponry of unknown origins threatens the safety of the earth, and the only ones who can fight them are similarly technologically advanced weapons controlled by super AIs that have taken the form of cute girls who have taken a liking/bonded with the protagonist.
One is the air force and the other is the marines.
In both series, humanity faces a threat and is forced to use parts of the enemy to create defense weapons.
In Girly Air Force, there is girls who represent planes, in Aoki Hagane no Arpegio, there is girls who represent boat.
- a squad of pilots composed only with females fighters
- air fights
- more funny / relaxing than serious (even with the war context)
- Girly Air Force takes place in an alternative current world (including high technology planes & "upgraded pilots"
- Kouya no Kotobuki Hikoutai takes place in an alternative older world (I would say XIXth century approximately)
- GAF has fast & explosive fights while Kouya no Kotobuki Hikoutai figures lower fights but more skilled (lot of maneuvers)
- Kouya no Kotobuki Hikoutai's animation and design are really different (especially about movements).
The heroines of these series are extremely similar in both their personalities and their outlooks on life. Mikan and Sakura are both elementary-school girls who find their school life difficult because of their crazy classes, especially one troublemaking boy. They succeed in solving their problems using their optimism, never-give-up attittues, and unique skills
Girly Airforce uses glimpses of the legendary Itano (Air) Circus. That's the insane speed barrage of missles and dogding dog fighting planes. Ichiro Itano is the man who created this technique in the even more legendary series Macross. For a great dog fighter, watch the OVA Macross Plus. If you like any of the airial combat in Girly Airforce, and a great love story, check out Macross Plus. But don't stop there, watch *all* of the Macross series.