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[email protected] (425) 402-0433 October 2017 | Volume 34, Number 10 Flight Review 6 GET RADICAL! Murphy’s latest is all about fun. By Paul Dye. Builder Spotlight 16 CHANGING A PERFECTLY GOOD AIrpLANE: Building a modified RANS S-9, part 1. By Michael Ryer and John Wells. 20 LANDING GEAR GURU: Robbie Grove of Grove Aircraft Landing Gear Systems. By Eric Stewart. 26 STATIC PORT LOCATION AND ALTITUDE CALIBRATION: Often a challenge, accuracy depends on three things: location, location, location. By Reinhard Metz. 34 SO YOU’D LIKE TO GO FASTER: Secrets for reducing drag, 16 part 2. By Dave Anders. 42 GETTING YOUR PLANE READY FOR THE DAR: Common pitfalls and problems that builders face. By Dave Prizio. 48 ErrOR CHAIN: The demise of theCosmic Fish. By Lewis Bjork. 52 BUILD YOUR OWN LEAK-DOWN TESTER: Converting a Harbor Freight compression tester for aircraft engine use.