Just to set the record straight, after further research I have discovered that the KGV did not have its 15ft duplex retro fitted with a 22ft single.
Unfortuneately the book I based my claim on - "Ensign 1 - the KGV class" by Alan Raven has mislabeled the photo. As it was both the front cover and
the title page of a book designed to offer high quality photos I find this very sloppy.
I recently borrowed a copy of "Range & Vision", a history of Barr & Stroud. It contains very little useful technical information but does make a number of claims, not all believable.
The RN acquired 77 of the 15ft duplex RFs before WW2. This equates roughly to 1 each for the front line BBs and 1 for each cruiser built after WW1.
The Japanese acquired 10 of the above by 1930, but I don't know what they did with them.
The PoW carried a 22ft duplex, not a 15ft one.
The PoW relied on her rear DCT RF to initially shoot at the Bismarck at DS.
The DoY initially fired at the Scharnhaust using optical RFs - only later switching to radar.
Baush & Lomb in the US reached an agreement with Zeiss to build RFs under licence. Which probably accounts for the US using stereoscopics.
I recently borrowed a copy of "Range & Vision", a history of Barr & Stroud. It contains very little useful technical information but does make a number of claims, not all believable.
The RN acquired 77 of the 15ft duplex RFs before WW2. This equates roughly to 1 each for the front line BBs and 1 for each cruiser built after WW1.
The Japanese acquired 10 of the above by 1930, but I don't know what they did with them.
The PoW carried a 22ft duplex, not a 15ft one.
The PoW relied on her rear DCT RF to initially shoot at the Bismarck at DS.
The DoY initially fired at the Scharnhaust using optical RFs - only later switching to radar.
Baush & Lomb in the US reached an agreement with Zeiss to build RFs under licence. Which probably accounts for the US using stereoscopics.
