[8] Together with Win Rampen, Salter also played a key role in the development of digital-displacement pump-motors, later manufactured by Artemis Intelligent Power.
In small scale controlled tests, the Duck's curved cam-like body can stop 90% of wave motion and can convert 90% of that to electricity.
[14] According to sworn testimony before the House of Parliament, The UK Wave Energy programme was shut down on 19 March 1982, in a closed meeting.
[15][16] An analysis of Salter's Duck resulted in a miscalculation of the estimated cost of energy production by a factor of 10,[17] an error which was only recently identified.
[18] Salter was appointed Member of the Order of the British Empire (MBE) in the 2004 Birthday Honours for services to engineering.