The Battle of Coughing Sky

"You've heard the stories, you've read the history, you've seen the paintings - take heart, Yrdain, you're about to be in one!" - Rorym III Amberfern, moments before the battle.
The Battle of Coughing Sky was a surprise counter-offensive during the Whispered War of 1750ASR by the Jerisain Sun against the Yrdain Empire who had arrived over Quaydesh to rescue the captured Ditarch, Devyntias Amberfern and his cousins. The battle was the first official conflict of the war, and ended with the Empire victorious. Due to the vast technological difference between the two fleets, the Jerisain Sun were only able to destroy a quarter of the Yrdain ships and partially damage the Primonarch's Flagship before being annihilated themselves. Coast Hirak'hun, the de-facto admiral of the Jerisain Sun's fleet, escaped with his crew. The battle earned its title due to the cacophony of cloudburst explosions that filled the sky.

After the disappearance of the Ditarch, Deyntias Amberfern in early 1750, it was revealed that he had somehow ended up in Satus along with his cousins, Pantryr and Astyira, as well as his Heirtaph, Jundaes Ralidus. They had subsequently fallen into the hands of the Jerisain Sun, and were all held hostage. This forced the Primonarch of the Yrdain Empire, Rorym III Amberfern, to break for the first time his oath of peace and set sail to Quaydesh. Relying on intel that suggested the Jerisain Sun was comprised of almost entirely ground forces, Rorym set 50 ships of the Evitch Air Company to the journey, believing they would only be needed as an intimidatory presence, but in the time between Devyntias' capture and the news reaching Erwood, the Jerisain Sun had overwhelmed a few loyalist Satese shiplocks and accumulated up to 75 vessels themselves.

When the Yrdain fleet arrived in Quaydeshi airspace, they were caught unprepared by the Jerisain Sun's entire airborne force. While the Jerisain Sun outnumbered the Yrdain, they lacked training and knew very little about air combat, whereas the Yrdain were the world's most powerful ship-based military. There was no parley at this stage, the Jerisain Sun immediately opened fire once in range. The ensuing battle lasted under an hour and ended in the crushing defeat of the Jerisain Sun, with only 13 of their original 75 making it out intact. The Yrdain fleet on the other hand only lost 19 ships and continued their flight towards Devyntias' location.