Absolutely they must be bushed. This goes for all fasteners which penetrate the floorboards. I’ve used Dave Calkins’ “bent-nail” technique on a couple builds with good success. It’s described on this site more than once, I believe, if you search for it. Basically drill all holes in...
I’m sorry, but no way am I trusting just glue to keep my fabric attached to the ribs. I get the theory, but I’ve seen way too many glues fail or let go for a whole variety of reasons- poor surface prep, effect from other chemicals/fuel, or just plain age. Honestly I fail to see how it can be...
I would definitely not open up the sealed tubes to add oil- you’re just asking for a leak later. Don’t skimp on that polyurethane topcoat- that’ll be your biggest front-line defender against corrosion. Full metal belly would sure help for yearly rinsing and application of more preventive...
I wouldn’t acf-50 anything I wanted to paint any time soon- I’d say it would be way less labor to lightly re-blast prior to coating than the clean-up acf-50 would require…
https://radiokenai.com/small-airplane-crash-in-anchor-point-leads-to-partial-highway-closure/
Early scuttlebutt is that at least one witness saw it “come apart in the sky”. Also heard a wing came off from another source…
This is not rocket science and the previous owner shouldn’t have put up with it. All other things being equal, either your primer system isn’t getting fuel to the cylinders, or you have an ignition issue, or both. Those two systems in good working order will result in a fire in 2-4 blades...
My experience has been the same; even with obvious stuff- Catto props, unapproved pods, etc. I thought maybe it was just an Alaska thing, but glad you’ve had the same treatment…
And I’d argue louvers are not a basic design change. Air goes in the top, comes out the bottom; adding a little more exit area doesn’t seem like a basic design change, but that’s just me…
Sounds like your phone audio is grounded somewhere- I’d check your phone ring contacts for continuity to ground, and go from there. Sometimes if a stray shield strand or something is touching, you can still get a tiny bit of audio but no volume. I’ve fought this before and found the phone plug...