Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
Sorry to say it does not. It's because the ordinance is visibility tags connected to simconnect objects which add weight.
-Tim

Actually if you want to get into the air fast there is an override switch in the far lonely left rear of the front cockpit that will allow you to use the loadout manager with out having to shut down the engines and parking brake. it's a sort of cheat switch and coincidental in real life it's an armament safety switch.
-Tim