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HSI vs. CDI: What’s the Difference?

Pilot Institute

You can use the CDI with navigation aids like VOR (VHF Omnidirectional Range) or GPS. We wont explain technical details, so you may not understand the example if you havent used a VOR. Imagine were flying an HSI-equipped airplane away from VOR. Q: What is the difference between a VOR and a HSI? Airport signs!

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RAIM vs WAAS Explained Simply: GPS Made Easy

Pilot Institute

Aviation technology is driven by a continuous pursuit of accuracy and safety. Pilots and aviation engineers are constantly seeking ways to improve navigation precision and reduce the margin of error. Cost and Accessibility How have navigation technologies become more accessible? Why Is WAAS Better Than RAIM?