Perfect 0.84 ratio, rotationally symmetric, and extra room in the middle for radars or laser turrets if desired.

Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Perfect 0.84 ratio, rotationally symmetric, and extra room in the middle for radars or laser turrets if desired.