Complex sentence: In February 1946 the company proposed a system with two main stations located at Shannon Airport in Ireland and Gander International Airport in Newfoundland (today part of Canada), with a third station in Bermuda to provide general ranging information to measure progress along the main track.
Split into simpler sentences: In February 1946 the company proposed a system with two main stations located at Shannon Airport in Ireland and Gander International Airport in Newfoundland (today part of Canada). A third station in Bermuda would provide general ranging information to measure progress along the main track.