Why early helicopters would still use visual gunfire correction

Could 1940s electronics support laser designation from a helicopter?

Laser designation is judged too early, and radio or radar alternatives remain doubtful; visual gunfire correction is the workable conclusion.

A hovering aircraft offers a steadier observation position, which prompts the idea of using it to direct battleship guns remotely. Coded laser signals are judged beyond the electronics available in this period. Radio or radar designation is then considered, but stable hovering alone does not solve the technical problems. Command guidance for a missile is also a different problem from directing a battleship's gunfire through a helicopter. After considering those alternatives, the conclusion returns to visual correction.