Slingology – Building and Flying a Sling TSi

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  • MX

    A Lightweight Maintenance & Compliance Dashboard for Experimental Builders

    Published by

    Stathis Papaefstathiou

    on

    December 25, 2025
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    A Lightweight Maintenance & Compliance Dashboard for Experimental Builders

    Owning and building an experimental aircraft quietly turns you into several people at once. You’re the builder, the operator, the maintenance manager, the compliance officer, and—whether you intended it or not—the historian of the airplane. Regulations don’t care that these roles live in one human brain. They still expect clarity,…

    Continue reading →: A Lightweight Maintenance & Compliance Dashboard for Experimental Builders
  • Ready Room

    Could a Sling TSi Ever Have Autoland? A Thought Experiment

    Published by

    Stathis Papaefstathiou

    on

    December 22, 2025
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    Could a Sling TSi Ever Have Autoland? A Thought Experiment

    TL;DR: Emergency Autoland has moved from impressive demos to real-world use, forcing a new question for general aviation: not whether an airplane can land itself perfectly, but how much automation is needed to avoid the worst possible outcome. This post breaks Emergency Autoland down into its fundamental requirements — deciding…

    Continue reading →: Could a Sling TSi Ever Have Autoland? A Thought Experiment
  • Build

    Builder Log: Ready for Paint — A Look Inside the Factory-Assist Build Process

    Published by

    Stathis Papaefstathiou

    on

    December 18, 2025
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    Builder Log: Ready for Paint — A Look Inside the Factory-Assist Build Process

    This week’s visit to Torrance looked a little different from the recent ones. I wasn’t on the shop floor turning wrenches or checking off build tasks. Instead, this was a review milestone—looking at the work completed by the Airplane Factory team over the past several weeks and confirming that the…

    Continue reading →: Builder Log: Ready for Paint — A Look Inside the Factory-Assist Build Process
  • Hangar, MX

    The Hybrid Logbook: A Practical Record-Keeping Model for GA Pilots and Owners

    Published by

    Stathis Papaefstathiou

    on

    December 2, 2025
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    The Hybrid Logbook: A Practical Record-Keeping Model for GA Pilots and Owners

    TL;DR: Aviation records must survive for decades, but digital tools rarely do. The most resilient approach for a GA pilot with a single airplane is a hybrid model: keep paper as the master, scan everything important as a backup, and use a lightweight online dashboard for reminders, planning, and analysis.…

    Continue reading →: The Hybrid Logbook: A Practical Record-Keeping Model for GA Pilots and Owners
  • Ready Room

    Garmin Pilot IFR Checklist for Real-World Flying: Quick Reference to the Rules You Need Most

    Published by

    Stathis Papaefstathiou

    on

    November 25, 2025
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    Garmin Pilot IFR Checklist for Real-World Flying: Quick Reference to the Rules You Need Most

    TL;DR: A controller’s reminder about “procedure turn confusion” led me to build a Garmin Pilot IFR Checklist — a compact, quick-reference list of acronyms and rules we all tend to forget once the checkride is behind us. It’s designed for in-flight reference inside Garmin Pilot, covering items like IM SAFE,…

    Continue reading →: Garmin Pilot IFR Checklist for Real-World Flying: Quick Reference to the Rules You Need Most
  • Hangar

    From Builder to Owner: Understanding Aircraft Maintenance Logs

    Published by

    Stathis Papaefstathiou

    on

    November 22, 2025
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    From Builder to Owner: Understanding Aircraft Maintenance Logs

    TL;DR: Your airplane’s logbooks are more than paper—they’re proof. They certify your airworthiness, protect your wallet, and tell the story of your machine. Whether you fly a certified Cessna or a homebuilt Sling TSi, the same truth applies: if it’s not written, it didn’t happen. This post breaks down what…

    Continue reading →: From Builder to Owner: Understanding Aircraft Maintenance Logs
  • Build Specs

    My Sling TSi Configuration Omnibus — Every Decision in One Place

    Published by

    Stathis Papaefstathiou

    on

    November 13, 2025
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    My Sling TSi Configuration Omnibus — Every Decision in One Place

    After nearly a year of research, conversations, spreadsheets, and the occasional late-night rabbit hole, it’s finally time to lock everything in. As the airplane transitions into the paint phase, every configuration choice—from engine to avionics, from parachute to visors—has been (hopefully!) finalized. This post serves as a consolidated reference of…

    Continue reading →: My Sling TSi Configuration Omnibus — Every Decision in One Place
  • Build Specs

    Rotax 915iS vs 916iS: Why I Chose the New Generation for My Sling TSi

    Published by

    Stathis Papaefstathiou

    on

    November 5, 2025
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    Rotax 915iS vs 916iS: Why I Chose the New Generation for My Sling TSi

    TL;DR: This post compares the Rotax 915iS vs 916iS, the first and most defining decision of my Sling TSi build. The newer 916iS—nicknamed “The Impossible Engine”—delivers 19 more horsepower, a 2000-hour TBO (vs 1200 on the 915iS), and better fuel efficiency while adding only about eight pounds. Inside, it’s almost…

    Continue reading →: Rotax 915iS vs 916iS: Why I Chose the New Generation for My Sling TSi
  • Hangar

    A Pilot-Owner’s Guide: MOGAS vs 100LL in Rotax iS Series Engines

    Published by

    Stathis Papaefstathiou

    on

    October 31, 2025
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    A Pilot-Owner’s Guide: MOGAS vs 100LL in Rotax iS Series Engines

    TL;DR: Rotax’s iS-series engines were built for unleaded fuel, not 100LL. MOGAS keeps them cleaner and cheaper to maintain, but avgas is still what most U.S. airports pump. The smart move is to use MOGAS whenever possible and 100LL when you must—add Decalin, use semi-synthetic oil, and stick to 50-hour…

    Continue reading →: A Pilot-Owner’s Guide: MOGAS vs 100LL in Rotax iS Series Engines
  • Adventures, Training

    Three Days at Oshkosh: Lessons from the EAA Leadership Academy

    Published by

    Stathis Papaefstathiou

    on

    October 29, 2025
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    Three Days at Oshkosh: Lessons from the EAA Leadership Academy

    When I first decided to build an airplane, I knew I was signing up for a technical challenge—but what I didn’t expect was finding a community that feels like aviation’s beating heart. That community is the Experimental Aircraft Association (EAA), a nonprofit that exists to promote and support recreational aviation.…

    Continue reading →: Three Days at Oshkosh: Lessons from the EAA Leadership Academy
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Eating an elephant one bite at a time.

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