Vacuum Pump Substitutes from $500 to $300,000

Flying around in a single-engine airplane usually means depending on its lone vacuum pump to turn some gyros. Even piston-powered twins have a weak link or two in their systems. Despite training in no-gyro procedures, recent high-profile accidents have demonstrated that failure of the vacuum system is both insidious and a bona fide emergency. In a follow-up to his recent article on vacuum system failures, AVweb's Scott Puddy takes a look at some of the choices available on today's market to back up your vacuum pump. There are a lot of options and a wide range of price points. Which is the best solution for you?

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