The RBMI beacons are designed primarily for night operation as identification and location markers for airports. The patented belt-drive system eliminates the lubrication required by conventional gear-drive beacons (U.S. Patent No. 5339224). All of the moving parts are permanently lubricated and there is no maintenance required except for lamp replacement.
- FAA: L-801 AC 150/5345-12 (Current Edition)
- ICAO: Annex 14, para. 5.3.3