Before revision: It was not until 1930 however that airborne radios were reliable enough and had enough power to make them viable to be standard in all planes and it was this year that the International Commission for Aerial Navigation agreed that all aircraft carrying 10 or more passengers should carry wireless equipment.
After revision: It was not until 1930 however that airborne radios were reliable enough and had enough power to make them effective; and it was this year that the International Commission for Aerial Navigation agreed that all aircraft carrying 10 or more passengers should carry wireless equipment.