PRW Nautical Tables

 L(P) 21 22 23 L(P) s (R+d) raz.j - raz.j - raz.j - s (R+d) ist.j + ist.j + ist.j + P(V) R(p') Z1(2) P(V) R(p') Z1(2) P(V) R(p') Z1(2) 46 42° 11.3' 61° 04.5' 69.6° 41° 50.0' 59° 49.0' 68.8° 41° 27.9' 58° 34.4' 68.0° 134 47 43° 03.7' 60° 37.6' 69.0° 42° 41.7' 59° 21.4' 68.1° 42° 18.9' 58° 06.1' 67.3° 135 48 43° 55.8' 60° 09.5' 68.3° 43° 33.2' 58° 52.6' 67.4° 43° 09.7' 57° 36.6' 66.5' 136

NAO Nautical Table

 B: (-) for 90° 90° 21 22 23 A/H B/P Z1/Z2 A/H B/P Z1/Z2 A/H B/P Z1/Z2 46  134 42   11 61   05 69.6 41   50 59   49 68.8 41   28 58   34 68.0 226  314 47  135 43   04 60   38 69.0 42   42 59   21 68.1 42   19 58   06 67.3 227  313 48  136 43   56 60   09 68.3 43   33 58   53 67.4 43   10 57   37 66.5 228  312

Please pay attention how one determines parameters' signs from either Table. The users of PRW-Tables they pick-up signs directly from the Tables. When using NAO-Tables, it is necessary to study the rules printed on the tables’ margins. This demonstrates how they copied the form of PRW-Tables and trying to disguise it, they succeed only in making complicate rules where rules were not needed, as signs in PRW-Tables are just picked-up together with parameters.

PRW Nautical Tables

The Nautical Tables - NAO and PRW - overlap for the latitude values 18°, 19° and 20°. The number values of parameters P (V), R (p'), (w1,2) for PRW Tables and A/H, B/P, Z1/Z2are the same save for PRW Tables which are more precise as NAO Tables round minutes to integral number.

NAO Nautical Tables