Haunting in the Heartland (2020)

S1E18 Floating fortress island! Two men brave death!

The Yamato encounters a Gamilas stronghold that sends out Magnetron waves, causing metal structures to shake and break apart. Kodai and Sanada take off in a newly designed seamless aircraft created by Sanada to infiltrate the fortress. They successfully obliterate the installation before the Yamato continues its journey.