I have just received this from a pilot who flew Herons with Fiji Airways.
Fiji Airways regional destinations in the 1960’s had no alternatives. A low range disel beacon and no night lighting or engineering facilities. Hence no night navigation needed. All flights had to carry 2 hours minimum island reserve fuel. Sometimes flight planning had to bend the rules on one leg.
The sextants were rather large – ex Qantas beasts mounted in the front escape hatch. Passenger seating was only ten with #1 seat position becoming a chart table and #2 a sideways navigators position. A drift sight was also mounted at the cabin side at #2 seat and the navigator was usually the skipper with the co pilot then doing the handling from the left hand seat. On some legs for over 5 hours – no auto pilots! Each Astro position line was the product of three two minute observations with two two minute gaps between them. All averaged out and not forgetting about 5 minutes for calculations.
Remaining pax seats become toilet at 15, galley # 14 , and #13 the TGE (travelling ground engineer) who was also the steward serving the box lunches and coffee!