What is the major problem with taking high altitude observations?
A
Possible errors due to unusual refraction may exist.
B
The tables are not as accurate due to inherent errors in the spherical triangle at high altitudes.
C
Rapidly changing altitudes make it difficult to get an accurate altitude.
D
It is difficult to establish the point where the sextant is vertical to the horizon.
E
İlgili Sorular
Which daymark has no lateral significance?A marine chronometer should be rewound once every __________.On a small passenger vessel, backfire flame arrestors are§installed on a/an __________.BOTH INTERNATIONAL & INLAND Which statement is true concerning a towing light when a towing vessel i...An occulting light is one in which __________.