Refueler
Well-known member
The hyperbolic systems for the bombers were originally the Gee the which was being developed in the late 1930s, coincidently at the same time a team of Americans were doing the same thing as a method of measuring aircraft speed.
The ships navigation system was first employed on Anglesey in 1942 where Decca demonstrated the system to the MOD and as that test was successful they did another trial on the Moray Firth, one of the transmitters was stationed at Wick Airport for the second test, that was also very successful and Decca went into production to equip the landing ships with the navigation system.
The minesweepers used it to clear 10 lanes through a minefield leading to the beaches on Northern France and the following boats with the troops and equipment were given lane assignments to follow on through the cleared paths all using the navigation system it was called Gee Outfit QH and first used in earnest on the Dieppe raid in August 1942.
You should know that G was only one of the systems and later systems evolved ...