Mitchell argued that anti-ship aircraft could defend the coastline more effectively than coastal guns and naval vessels. A fleet also had responsibilities beyond the coast. An opponent could remain outside aircraft range and attack maritime trade. Coastal defense by aircraft therefore left an unresolved requirement to protect shipping farther out at sea.
Notable Point · 1:28:13-1:28:45
Coastal aircraft leave trade beyond their reach
An enemy fleet could avoid shore-based aircraft while attacking the trade those aircraft could not reach.