<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>danaliv</author><text>Use them on trips when you don’t need them so you’re prepared. I flew home over New Years via VORs and pilotage just to keep it sharp.</text><parent_chain><item><author>verelo</author><text>As a private pilot, this is the kind of thing that makes me scared to fly without being well versed on radio nav aids. I feel like i know them well, but honestly i use them so rarely in practice it would likely be an uncomfortable situation.</text></item></parent_chain></comment><story><title>USAF Is Jamming GPS in Western U.S. For Largest Ever Red Flag Air War Exercise</title><url>http://www.thedrive.com/the-war-zone/17987/usaf-is-jamming-gps-in-the-western-u-s-for-largest-ever-red-flag-air-war-exercise</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>edraferi</author><text>Which is exactly why the military is knocking out GPS Afro the exercise. Gotta train for the worst.</text><parent_chain><item><author>verelo</author><text>As a private pilot, this is the kind of thing that makes me scared to fly without being well versed on radio nav aids. I feel like i know them well, but honestly i use them so rarely in practice it would likely be an uncomfortable situation.</text></item></parent_chain></comment><story><title>USAF Is Jamming GPS in Western U.S. For Largest Ever Red Flag Air War Exercise</title><url>http://www.thedrive.com/the-war-zone/17987/usaf-is-jamming-gps-in-the-western-u-s-for-largest-ever-red-flag-air-war-exercise</url></story>