uk 2nd mate equipment oral exams
precision aneroid barometer
7:50
uk 2nd mate equipment oral exams
marine sextant
10:44
uk 2nd mate equipment oral exams
marine sextant 3+barometer
2:20
uk 2nd mate equipment oral exams
marine sextant 2
4:20
uk 2nd mate equipment oral exams
Precision aneroid barometer part 2... continue of part1
7:16
uk 2nd mate equipment oral exams
barograph
5:57