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Continue reading →: Dual ADAHRS vs. G5: A Reliability Analysis for the Garmin G3XTwo of the same sensor isn’t redundancy. A failure mode analysis of dual GSU 25 vs. GSU 25 + G5 in the Garmin G3X ecosystem — including what happens to the autopilot, and what the brand-new AXIS launch tells us about how Garmin itself architects redundancy.
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Continue reading →: MOGAS vs. 100LL, Revisited: A Season of Flying LaterA season of real cross-country hours changed my thinking on MOGAS vs. 100LL — including one detail about my own engine I got flatly wrong the first time.
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Continue reading →: The First Sample: Engine Oil Analysis for the Rotax 916 iSOil analysis is one of the most underused condition monitoring tools in the experimental world. Here’s what it is, how it works on the Rotax 916 iS specifically, and how to start doing it correctly.
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Continue reading →: The Last Form: The Repairman Certificate, ExplainedAfter years of building, the final piece of paper is a five-minute formality — but the certificate it produces is the most misunderstood document in homebuilding. Here’s what the experimental aircraft builder repairman certificate actually grants, the FARs behind it, and what the FAA application process looks like.
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Continue reading →: Your Sling Will Get AC Before It Gets a Real Heater. That’s the Whole Story.GA has invested 18 years engineering cabin cooling. It hasn’t invested meaningfully in cabin heating since 1948. The same airplane that’s getting vapor-cycle AC this year is still using an exhaust muff to heat the cabin. That asymmetry is the story — and it starts with a valve, a cable,…
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Continue reading →: FAR 91.171 Made Easy: A Free Electronic VOR Check Logger for IFR PilotsSlingologyVOT is a free, offline-first Progressive Web App for IFR pilots to log VOR checks as required by FAR 91.171. Electronically signed, export-ready, and no account required.
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Continue reading →: The Future of ATC: Why the Controller Doesn’t Need to Tell You the Altimeter SettingThe U.S. air traffic control system is understaffed, aging, and straining under the weight of routine, repetitive communications. A technical and economic case for what could — and should — be automated, and what it would take to get there.
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Continue reading →: The Build Is Over. The Flying Has Begun.For the better part of two years, this blog had one job: document the journey from a signed purchase agreement to a flying airplane. That job is done. N117ZS is in her hangar at KAWO, the logbook has its first real entries, and the questions that drove most of what…
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Continue reading →: From Torrance to KAWO: The Ferry FlightSometime in August of 2024, I stood in a hangar in Torrance, California, looking at a pile of aluminum and wondering what I had gotten myself into. Eight months later, I was strapping into that same airplane — now fully built, tested, and signed off — for the longest flight…
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Continue reading →: Sling TSi First Flight — The Good, The Great, and the Open DoorN117ZS — Roci — flew for the first time on March 20th, 2026. Three days at Torrance that covered everything from first flight euphoria to a door-open emergency over Los Angeles. Here’s the full story.
Eating an elephant one bite at a time.
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