Loki has 1GB of external storage space to accumulate SBF files. Older SBF files will not be overwritten as new ones are created, so it is good practice to delete unwanted files from your Loki unit. Users often think their SBF files are not being recorded, when the problem is disk space. If you perform a flight and do not see an SBF file, delete some older files and then power Loki on and Off. Your missing files should be visible after the power cycle.