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Altitude Corrections. Quiz Q & A. Junior Navigation Chapter 4. 1. Dip correction is the angular difference between the visible horizon and a true horizontal. a. True b. False.
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Altitude Corrections Quiz Q & A Junior Navigation Chapter 4
1. Dip correction is the angular difference between the visible horizon and a true horizontal. a. True b. False
2. A ship's captain takes a sight from the ship's rigging with a HE of 54 feet. His mate takes a sight from the deck of the ship with a HE of 18 feet. For which HE will the dip correction be greatest? HE of 54 feet
3. Find the dip correction: HECorrection 18 ft ____ 22 ft ____ 72 ft ____ -4.1' -4.5' -8.2'
4. For the following data, determine main sextant altitude corrections: Body Date ha Sun UL 21 June 17° 32.1' Sun LL 29 Sept 43° 46.0' Sun UL 29 Sept 43° 46.0' Sun LL 10 Mar 61° 41.6' Main -18.8' +15.0' -16.8' +15.7'
Altitude Corrections End of Quiz Q & A Junior Navigation Chapter 4