function emailCurrentSheetAsPDF() {
  var ss=SpreadsheetApp.getActive();
  var sh=ss.getActiveSheet();
  var shts=ss.getSheets();
  for(var i=0;i<shts.length;i++) {
    if(shts[i]!=sh) {
      shts[i].hideSheet();
    }
  }
  var fldr=DriveApp.getRootFolder();
  var file=fldr.createFile(ss.getBlob().getAs('application/pdf'));
  GmailApp.sendEmail("bighillhelitack@gmail.com", "F-106", "Aircraft Dispatch".{attachments:[file]});
  file.setTrashed('true');
}