Complex sentence: The radar was repaired, although "Halibut" was without depth gauges, main compasses, gyros, radio, and a number of other systems, although most of the damage was actually to the hull and its fittings.
Split into simpler sentences: The radar was repaired, although "Halibut" was without depth gauges, main compasses, gyros, radio, and a number of other systems. Most of the damage was actually to the hull and its fittings.