Category Archives: Meetings

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February 9th, 2023 Chapter Gathering – Small Continental Engine Overhaul

Do you own a vintage or classic airplane and/or have you contemplated an engine overhaul?  

The Cessna 120 restoration team has.  After considering options, they decided to rebuild the Continental C85-12F.  Bill Jepson disassembled the motor and the parts went out for overhaul.  The Cessna project manager, Chris Riedener, is considering the same for his 1941 Interstate Cadet which currently has a C75-8.  

Where do you begin the process and what are your options?  What’s the difference between a -12 and a -8?  Chris will explain the options in each certified aircraft’s type certificate data sheet.  He’ll explain things to consider such as STCs, engine mounts, accessories, propellers, and the scarcity of parts. Adding horsepower could also reduce your useful load!  What secrets lurk in an engine’s logbook?  It’s worth doing your homework before you shop for a replacement motor.

Small Continentals were used in Cubs, Champs, and many others.  The A-65/75, evolved into the C-75/85/90 and became the O-200 used in many Cessna 150s. We have a second C85 that has been disassembled for show and tell.  It reached TBO and had an exhaust valve leak (a common issue).  Bill will explain the teardown and we’ll have the parts on hand for inspection.

The meeting is at the EAA 105 Hangar (G1) at Twin Oaks Airpark.  We typically have some food (small donation requested) and socialize from 6:30 to 7:00 p.m.  The meeting is open to the public and begins at 7:00 p.m. with the EAA Monthly video, followed by a special program.

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January 12th, 2023 Chapter Meeting

Steve Payne will talk about putting together the 50-ship formation at Oshkosh for the Vans’ 50th anniversary. He will also give a brief overview of how to get started with formation flying.

  • We are meeting at the EAA 105 clubhouse, Twin Oaks Airpark, hangar G1.
  • Arrive by 6:30 pm for some food and socializing.
  • The presentation begins at 7 pm.
  • We’ll start with Charlie Becker’s EAA Monthly Chapter Video.
  • Donations are accepted to cover the cost of food.
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December 8th Chapter Meeting

We had a good meeting.

We watched the EAA Chapter Video.

Chad spoke about the C120 flying club meeting, coming up after the January 7th breakfast.

Cliff spoke about his aircraft’s incursion into HIO airspace and his experience with the FAA Compliance Program.

Joe Mollahan, from the HIO FSDO, was a fantastic and engaging speaker. He spoke about the effort to carve out some class D airspace to give room for aircraft arriving and departing Twin Oaks. He also had a slide presentation about the compliance program.

There were about 40 people attending, 29 of which signed the clipboard for FAA WINGS credit.

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Chapter Gatherings

Chapter gatherings are an opportunity to socialize, meet chapter members and see what’s going on with EAA105.

They are on the second Thursday of every month, at 6:30 pm, at the EAA 105 Hangar (G1), at Twin Oaks Airpark.  We typically have some food (small donation requested) and socialize from 6:30 to 7:00 p.m.  The meeting begins at 7:00 p.m. with the EAA Monthly video, followed by a special program.  Programs:

  • Aug 11th – Jonathon Severdia RV-9 project show & tell.  This project is nearing completion, Jonathan needs some eyes on his project before certification.
  • Sep 8th – presentation TBD.  It could be you!  Let Chris know
  • Oct 13th – presentation by Pacific Coast Avionics.  A local company offering instrument repair, kit panels and more.
  • Nov 10th – (tentative) the Cessna 120 project – a retrospective, and future plans

We are looking for volunteers to help organize or present at future meetings.  You can discuss your build project, do a presentation, invite a speaker, show a movie, or organize a field trip. Contact Chris Riedener with your idea for a chapter meeting.

Questions: Contact Chris Riedener at 503-754-5605