The flight deck was enlarged in 1997 and in 2005 she was refitted in Poland with a new bridge and improved electronics suite.
Hollandse Signaalapparaten supplied the entire electronics suite.
These ten aircraft were delivered directly into storage in 1965 while they awaited fitment of an improved electronics suite.
Her 1942 electronics suite also included a Type 270 echosounder.
This bass incorporated a massive electronics suite, with state variable filtering capability, and had pickups mounted on brass tubing so that their position could be adjusted.
The electronics suite takes some getting used to.
The aircraft is based on the Lockheed P-3 Orion airframe, but mounts the electronics suite of the S-3 Viking.
Studies of the electronics suite had started in February 1949, prior to the 201A specification, and were folded into the project.
The aircraft was provided with a sophisticated electronics suite by Ferranti for autostabilisation and contact identification.
She'd been refined in a Belfast shipyard, her hatches strengthened, her huge, forward deck crane removed, and her electronics suite upgraded and modernized.