Hudson
Thanks. Another example of why aviators (and good designers) of your era had a profound suspicion of electrics.
Even later in 1969 the Harriers that went to the RAF then did not need a single volt to fly them - unless you wanted a radio. For IMC there was a battery driven T&S
Today the Harrier like any other modern aircraft demands (and to be fair usually gets) electrics for EVERYTHING.
Just like our cars
JF