HANG Newsletter - Royal Institute of Navigation

Royal Institute of Navigation
The first one is the compass from a V1. I feel this must be relatively rare
because not only did it fly in the company of a ton of explosive but it was the
first part of the V1 to arrive. The first photograph shows what was offered for
sale, at £195, and the second photograph taken from a service manual shows
a compass in place in the V1 nose cone. It is one third of the V1 navigation
system on the assumption that the V1 relied upon compass, altimeter and
clock.
Addison Luard calculator. Photo credit 1stjuly.
This is the Addison Luard course and wind calculator of about 1935. The type
B is for 3 vector calculations and type D for 4 vectors though I am not sure
which model is on display here. I have seen it described as expensive and
cumbersome but to me it is a work of art. Look at the mechanism –
computation would be a pleasure but this one was expensive and sold for
£119.
P3 and P10 compass. Photo credit aspentree123.
The final item is a P3 compass. The P series of compasses culminated in the
P10 shown on the right; the P10 together with the P11 and P12 were the
standard RAF compasses at the end of WW2. This family started with the P1
of 1924 and the whole series looked very similar except for the P3 shown
here looking like a hand held compass. It was the only P series compass with
a vertical card and viewed from the side. This attempt to break the mould
cannot have been successful because the design reverted to the familiar grid
compass viewed from above as in the P10. This P3 was a small bit of
unrecognised history at £67.
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