
6
Object Size Scale
Object Distance Scale
Angle Index
Reticle Angle Index Scale
Base to Top of Lighthouse= 2.5
Example: Top of lighthouse is level
with 2.5 on reticle angle scale. Rotate
calculator dial so “2.5” on angle index
is opposite the mark. If lighthouse is
known to be 100’ high, distance to
the lighthouse is 4000’.
Summary of Contents for OffShore 21
Page 2: ...2...
Page 3: ...3 Index English 4 Fran ais 12 Espa ol 20 Deutsch 29 Italiano 36 Portugu s 44...
Page 9: ...9 1 2 3 4 Buoy Buoy Buoy Lighthouse Lighthouse Lighthouse Lighthouse Position Position...
Page 17: ...17 1 2 3 4 Bou e Bou e Bou e Phare Phare Phare Lighthouse Position Position...
Page 25: ...25 1 2 3 4 Boya Boya Boya Faro Faro Faro Faro Faro Posici n Posici n...
Page 33: ...33 1 2 3 4 Boje Boje Boje Leuchtturm Leuchtturm Leuchtturm Leuchtturm Position Position...
Page 41: ...41 1 2 3 4 Boa Boa Boa Faro Faro Faro Faro Posizione Posizione Posizione...
Page 49: ...49 1 2 3 4 B ia B ia B ia Farol Farol Farol Farol Posi o Posi o...
Page 52: ...2005 B P O www tasco com...