Stevelup is correct. You can use an electronic calculator in the nav exam. But it must be just a simple number cruncher type - you cannot use a programmable calculator or phone app, ie you cannot use something that will provide you with the answer even if you dont know how to work it out.
(CAA Standards Doc 11 para 2.7.9 refers)
Last edited by Heston; 2nd April 2013 at 17:04.