Altitude Indicators

Every pilot knows “Hoover’s Law”: It’s not a question of if your vacuum system will fail, but when your vacuum system will fail. To eliminate the vacuum problem, many owners have opted to go with an electric primary or standby gyro. Great idea—until the power goes out. Then what? Well, thanks to Mid-Continent Instruments, pilots who install its new 4300 series Lifesaver electric attitude indicator with built-in battery backup can keep flying for up to an hour.