Related time notes
- Royal Navy Survey Ships: A History - Patreon 55 (Long Patrol)32:51Protector becomes an Antarctic patrol shipNotable Point
- Royal Navy Survey Ships: A History - Patreon 55 (Long Patrol)58:38The second Endurance and icebreaker survivabilityNotable Point
- Royal Navy Survey Ships: A History - Patreon 55 (Long Patrol)1:10:38Protector and the limits of an off-the-shelf polar shipNotable Point