Silger Sonex

Build Log for Sonex 0849B

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  • AHRS Unit Shelf

    AHRS Unit Shelf

    February 12, 2026

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    SNB-E01: Avionics & Electrical

    Installed GPS 175 tray behind panel in preparation for GPS install. Connected SkyView WiFi adapter to back of display along with USB extension (which will be secured at a later time). Fabricated shelf for SV-ADAHRS-200 box from 0.032 sheet. Bent…

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  • Throttle Bell Crank – Part 2

    Throttle Bell Crank – Part 2

    February 12, 2026

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    SNB-P01: Engine Installation

    Installed throttle cable in center panel area. Located throttle and mixture cable pass-through locations on firewall and prepared holes for cable bulkheads. Installed both cable safes. Located throttle bellcrank assembly based on throttle cable pass through then transferred mounting holes…

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  • Fuel System Electronics Wiring

    Fuel System Electronics Wiring

    February 11, 2026

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    SNB-E01: Avionics & Electrical

    Installed molex connectors on fuel probe and fuel flow transducer and connected components to EMS harness and SkyView circuit breaker. Attached voltmeter input of EMS box to main bus bar. Ran firewall forward wires of EMS harness through gromet to…

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  • Throttle Bell Crank – Part 1

    Throttle Bell Crank – Part 1

    February 11, 2026

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    SNB-P01: Engine Installation

    Because we are planning to use a traditional push-pull throttle (instead of a Sonex throttle quadrant) with the AeroInjector, we needed a way to reverse the throttle direction. Assembled throttle bell crank and created mounting bracket from scrap 2″ and…

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  • Engine Installation – Part 1

    Engine Installation – Part 1

    February 10, 2026

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    SNB-P01: Engine Installation

    Continued working on Sonex FWF manual for the Jabiru by marking and trimming cooling fins on cylinder #1. In lieu of further trimming cylinder fins to fit spark plug CHT ring sensors, will opt to use #8 ring terminal sensors…

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  • Thrust Line Measurement

    Thrust Line Measurement

    February 9, 2026

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    SNB-P01: Engine Installation

    Verified engine alignment before moving forward by leveling fuselage with saw horse under tail and setting up laser level though center of crank. Measured bottom front corner of fuselage at 22.75″ from floor and center of crank as 40.25″ from…

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  • Firewall Forward Fuel System

    Firewall Forward Fuel System

    February 9, 2026

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    SNB-G01: Fuel System

    Began working on firewall-forward fuel system by bending solid fuel line for drain branch. Ran -6 fuel line behind upper part of engine mount then bent line to come forward of bottom part. Created a drain cock mount out of…

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  • Wing Root Wiring

    Wing Root Wiring

    February 6, 2026

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    SNB-E01: Avionics & Electrical

    Attached wing tip lights to tip light fairings then installed DT connectors. Installed lights and fairings onto tips of wings. Terminated wing root wires at bulkhead connectors and tested functions. Reinstalled pneumatic bulkhead fittings for RH wing. Installed CHT/EGT harness…

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  • Avionics Sub-panel – Part 2

    Avionics Sub-panel – Part 2

    February 2, 2026

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    SNB-E01: Avionics & Electrical

    Created mount angle for EMS and ARINC module from scrap 0.032 sheet due to lack of clearance for modules with connectors on both ends. Riveted nut plates to vertical mount and then riveted mount to avionics shelf. Laid out backup…

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  • Avionics Sub-panel – Part 1

    Avionics Sub-panel – Part 1

    January 30, 2026

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    SNB-E01: Avionics & Electrical

    Created avionics sub-panel (shelf) from Z04-03 stock. Made mounting hinge pieces from -5 piano hinge to allow for more adjustability. Mocked up shelf locating behind panel and in front of fuel tank and pilot drilled hinges to upper longerons then…

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  • Circuit Breaker Wiring – Part 1

    Circuit Breaker Wiring – Part 1

    December 17, 2025

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    SNB-E01: Avionics & Electrical

    Began terminating panel wires to RH panel cover and circuit breakers. Connected master relay, master switch, and avionics switch wires to bus bars then connected available components to top of circuit breakers. Screwed RH panel cover into place onto panel…

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  • Circuit Breaker Mounting

    Circuit Breaker Mounting

    November 22, 2025

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    SNB-E01: Avionics & Electrical

    Bolted Ram mount base to RH panel cover using AN3 hardware. Cut copper bus bars to size and drilled circuit breaker holes at 0.8 inch spacing. Installed circuit breakers into RH panel cover then secured bus bar onto bottom terminals…

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Categories

  • Canopy and Windshield
  • Controls
  • Electrical
  • Everything Else
  • Fuselage
  • Landing Gear
  • Powerplant
  • Tail
  • Wings

Silger Sonex

Build Log for Sonex 0849B

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Warning: The information and documentation provided on this blog regarding the construction of an experimental aircraft are for reference and informational purposes only. The author assumes no liability for any injury, death, or damage resulting from the use of this information. Build and operate at your own risk.