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In Case You Missed It
Avionics Special: Surfing the Rapids
Marc Cooks installation of Grand Rapids Technologies Horizon HX synthetic vision EFIS is darned near plug-and-play, and works beautifully.
Engine Beat
How are your cylinders doing? A differential compression test can uncover any problems-almost before they start. Steve Ells explores what the results mean, and what to do about them.
MGL Infinity Singles
MGL Avionics/Stratomaster has cut a nice swath through the EFIS and discrete-electronic-instrument world. The company’s ALT-1, from its Infinity Singles line, makes a good, low-cost backup altimeter with a surprising list of features. By Marc Cook.