To add a bit more:
In "Wings Over France" (or "Up and At 'Em" in the U.S.A.)
Harold Hartney writes of experiments in early 1916 in FE2D machines of 20 Squadron RFC:
“We made rapid strides in instruments and in radio with the help of experts in each line sent out to work with us. In radios we had vacuum tubes with continuous wave operation way back there in 1916. I had one such set in my plane and operated it in conjunction with compass (broadcasting) stations. We developed trailing and fixed antennae, which would make modern patentees’ eyes bulge with wonderment. One day I discovered the possibility of compass radio direction finding and reported it…..We actually worked on something I have yet to see perfected in this country – something very badly needed – an instrument to help the pilot to detect mountains and other very high obstacles ahead in fogs or when he has his head in the enclosed cockpit.”
I think Hartney wrote his book in 1939 or 1940, so I think we can safely call him a prophet in this respect! I also recall that the problem with the trailing antennae was that it was over 100 feet long and could wrap itself around the control surfaces or other parts.
Bob
__________________
Testerchild
Remembering:
Driver T2/10816 G Tester, born Kirkcaldy, Fifeshire: A.S.C. & Aerial Gunner 20 Squadron RFC - my maternal grandfather: Killed in aerial combat 28.09.1917: Pont du Hem Military Cemetery, France.
Able Seaman J McCullagh, born Co. Wicklow, Ireland: my Great Uncle: Killed in action, SS Mavisbrook, 17th May 1918.
Captain R A Sellwood, born London: 44th Bn C.E.F. - My paternal Grandfather - Survived
The Union Flag runs in my veins.
HTTP://www.winged-sabres.com