Leon Schulz, Reginasailing · βίντεο

Τι καλύπτει αυτό το βίντεο

Leon Schulz explains celestial navigation sight reduction in a concise tutorial aimed at ocean sailors.0:13 A sextant measures the angle between a celestial body and the horizon; the navigator records that observed altitude and notes the exact time.0:20 An assumed position — accurate to within roughly 30 miles — is then looked up in the nautical almanac to find the altitude that should have been measured from that spot.0:46 The difference between the observed and tabulated altitude gives a distance from the assumed position, producing one line of position.1:15 A second line, from a second celestial object or a later sun sight, crosses the first to fix the boat's location.1:30 For a running sun fix, the morning sight's line of position is advanced along the course and distance traveled before crossing it with the noon or afternoon sight.2:27 Schulz notes that two objects work simultaneously — sun and moon in daytime, a planet and a star at twilight.0:47 Final accuracy is a handful of miles, and any initial position error corrects itself by the following day.0:46

Σκάφη σε αυτό το βίντεο

Περισσότερα από το Leon Schulz, Reginasailing

John Neal and Leon Schulz on Regina Laska in the Azores.Αυγ 2026Engine Room SafetyΙουν 2026Stuck Trudesign Valves during MCA Inspection and solutionΜαΐ 2026IMRAY or Reeds Almanac?Απρ 2026

Από Leon Schulz, Reginasailing — δείτε το σκάφος του καναλιού, το πλήρωμα και κάθε αναλυμένο βίντεο.

The Sailing Directory Newsletter

Ένα email με τις καλύτερες ανακαλύψεις του στόλου — τις στιγμές, τα σκάφη και τις ιστορίες που αξίζουν τον χρόνο παρακολούθησής σας. Εισάγετε τη διεύθυνσή σας για να λάβετε το δικό σας αντίγραφο.