These need to be included aircraft model side to work;
e.g.
<signals include="/Aircraft/Generic/flightrecorder/components/ai-models-carrier.xml">
<count type="int">4</count>
</signals>
<signals include="/Aircraft/Generic/flightrecorder/components/ai-models-escorts.xml">
<count type="int">12</count>
</signals>
<signals include="/Aircraft/Generic/flightrecorder/components/ai-models-tanker.xml">
<count type="int">4</count>
</signals>