Stalk the Sky by Tara Grayce

In a war fought high in the sky over the northern seas, one half-elf defends his legendary legacy.

With the Alliance Kingdoms and the Empire of Mongavaria now at war, half-elf Fieran Laesornysh has been sent to the naval base of Dar Goranth with one mission: protect the strategically important base from attack.
But when he arrives, he discovers there are no aeroplanes for his men, they have been assigned to a squadron of elves, and the elven commander resents Fieran for his lineage. Defending Dar Goranth will be a little difficult if he can’t even get off the ground.
With his motley crew of squadron mates at his back and the half-dwarf female mechanic Pip at his side, Fieran must navigate the challenges of his first command and the war both in the sky and within his own squadron.

Stalk the Sky is book 2 in the War of the Alliance series, a humorous steampunk fantasy series filled with magical gadgets, elven warriors, and a hint of no-spice romance perfect for fans of Lindsay Buroker and K.M. Shea.