POV: HOW TO CALCULATE GYRO ERROR BY SUN☀️ (ABC METHOD- UNTIL T/B ONLY) PART 2️⃣! What is the ABC Method? The ABC method is a quick gyro error check using: • Azimuth (true bearing of the Sun) • Bearing (observed gyro bearing) • Correction (gyro error) Formula-wise, it’s simply comparing true azimuth with gyro bearing, but Norie’s Tables help you find the Sun’s true azimuth (A) accurately. ⸻ Data Required Before opening Norie’s Tables, you need: 1. Date 2. GMT of observation 3. Ship’s DR Latitude
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POV: HOW TO CALCULATE GYRO ERROR BY SUN☀️ (ABC METHOD- UNTIL T/B ONLY) PART 2️⃣! What is the ABC Method? The ABC method is a quick gyro error check using: • Azimuth (true bearing of the Sun) • Bearing (observed gyro bearing) • Correction (gyro error) Formula-wise, it’s simply comparing true azimuth with gyro bearing, but Norie’s Tables help you find the Sun’s true azimuth (A) accurately. ⸻ Data Required Before opening Norie’s Tables, you need: 1. Date 2. GMT of observation 3. Ship’s DR Latitude
6.4K views3 months ago
FacebookProf. Kris Minion
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Thomas Coyne, Survival Expert on Instagram: "The General Azimuth Method is the most simple and safe way to navigate off trail. It’s very field expedient as you don’t have to stare at your map and/or compass the entire time you’re navigating. It’s the best system for new and beginning navigators. #bushcraft #hiker #backpacker #adventuretravel"
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Thomas Coyne, Survival Expert on Instagram: "The General Azimuth Method is the most simple and safe way to navigate off trail. It’s very field expedient as you don’t have to stare at your map and/or compass the entire time you’re navigating. It’s the best system for new and beginning navigators. #bushcraft #hiker #backpacker #adventuretravel"
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