This lighting pattern would have to be created by a .fx file, and therefore could not be built into a model. Once someone has created the fx file though, it would ojnly be a matter of changing the aircraft.cfg. all of posky's a/c use fx files for lights so it is possible.
the other way would be to create a gauge that flips the landing lights switch on and off. not very practical though

Okay, lets get things a bit straight, true effects relating to lights smoke flames etc. are .fx files. Why would they not be built into a model? For one thing that can be understood about modeling, is that nothing is ever built into a model, it's always designed. Sure it's possible to create a 3d model of beacon rotating but in this case it's just not required. Your very close when you stated to
"create a gauge that flips the landing lights switch on and off. not very practical though"
That's where computers come in, for programing that code, so it doesn't require a human to switch it on and off.. lol
Actually, I would not want it built into the model--that makes it harder to apply to another aircraft. I was suggesting that someone pick up that project (maybe I'll run it by the guy who does the Nick's light FX) or point me in a direction to learn how to do it. thanks though.
NickN is the guy that deals with this stuff, btw he is on the SimV forums as user specified "NickN" and work with him.
-Good Luck, SN

8-)