SLC radar
... that British Army researchers developed SLC radar in their spare time after they grew tired of watching how "searchlight beams swung wildly about the sky but rarely found and held a target"?
... that <a href="./British_Army" id="mwAZI" rel="mw:WikiLink" title="British Army">British Army</a> researchers developed <b id="mwAZM"><a href="./Searchlight_Control_radar" id="mwAZQ" rel="mw:WikiLink" title="Searchlight Control radar">SLC radar</a></b> in their spare time after they grew tired of watching how "searchlight beams swung wildly about the sky but rarely found and held a target"?