If you are operating a cirrus or a columbia that is now equipped with a beacon light you might get a fine from the FAA for not having the strobes on, as they are required any time that the engine is running.
Is this an aircraft limitation?
I agree with the above post that all planes should have a beacon.
I disagree. It's equipped great. If it's not, are you really gaining anything by installing one? Doubtful.
Beacons were installed on turbojet airplanes to warn of engine operation on the ground. That's the design and purpose. Certainly it can be used on turbopropeller and piston airplanes, helicopters, etc. Some like to leave the beacon on all the time to warn of a master switch that's been accidentally left on. Whatever floats one's boat. But to suggest that the beacon should be in all aircraft or that all aircraft should be required to have a beacon, is a bit of a stretch.