Hacker News Reader

Rad labs volume 2 has a great description of the radio navigation/positioning systems in use at the time: https://archive.org/details/mitradiationlabo0002john/mode/1u...

I believe several of these were also used by civilian aviation before and after the war

TL;DR: both sides used systems with multiple ground antennas that allowed pilots to essentially triangulate their position or at least know they're in a given lane.

View on HN

I understand that the germans used radio navigation to guide their nighttime bombers over Britain. Wikipedia suggests that the British quicly countered this.

One thing i find interesting is the fact that by sending beacons ahead of the bombing party, they literally broadcasted their intentions to the enemy but that didn't seem to worry them too much.

Reply on news.ycombinator.com