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The spruce doubler has only one fifth of E (Youngs modulus of elasticity) compared with aluminum.
Spruce E = 1.3
Aluminum E= 10

So almost no load transfer in the spruce.
might get more input on...

The Avid is 2.5" x.065", I think.
Depending on your design, then another sleeve doubler at strut might work. Say 3 feet long slitted to clamp tight and rivet.

Thanks. Looks like the field is empty today on Google earth.

I could see on google earth what looks like about a thousand golf carts parked at the corner of Knapp and county road N about 1/2 mile south of runway 36. Is that for Airventure?

One cart stopped for me at remote north forty. I think he was EAA staff or something.

If you see a cart with any nimble kids flag them down and get a ride. They aren't actually going anywhere anyway.

I don't know. But might try looking for aluminum pipe instead of tube.
Usually two thickness. Schedule 20 or 40 (or 80?)
Pipe is sold by inner diameter, more or less...
So 2" is 2.38" outside....

"Now I am in Austin, Texas. I need to have enough funds to charter a jet! Then where would I stay? I don't think my sister is willing to do a whole week, which I would prefer. Taking AMTRAK staying...

I thought VR was somewhat like RV.

Ok. I got it. Took ten minutes.

The undisclosed well-known engine development client is likely Dynon/Vashon for the light sport Vashon Ranger.

Push a frayed rope inside and slosh it around.

If the comment "gasoline resin" is actually sloshing compound then you may have a serious problem.
Over time the sloshing compound can turn to goo.

A homebuilder can overhaul a used but repairable aircraft engine for perhaps $5000.
The aircraft engine is engineered for the stress of turning a prop, and at an efficient diameter and rpm.

Hang em vertical and paint both sides then quickly attach the third wire to hold them horizontal before it runs.
or
Hang them horizontal high enough to crouch under for the bottom and use a ladder...

Aircraft Paint shops use ordinary automotive bondo.

Does that mean the decision was made now? Or will the decision be made on May 1st?

Maybe a dry mouse nest caught on fire inside the shroud. Did the shroud melt?

I thought the carb heat shroud wrapped around the muffler.

The danger zone is probably the less than 100 hours in type. That's why insurance companies want 100 hours in type.

It isn't fair that homebuilts have more fatals, but is reality. My mother-in-law told me life isn't fair.
I think the data needs to list the fatal rate for each homebuilt type from zero to 200 hours...

What about comparing aircraft by total airframe hours logged at time of crash?
Does the NTSB list aircraft hours on the reports?

"but if you're looking for a metric, the number of fatal accidents every year is a pretty good one."

Only if if the active number doesn't change over time. If the active number declines by half...

Sorry, I can't make any sense from that PDF graphic.
I think using total fatals instead of percentage is dishonest.

"66.2% of Experimental Amateur-Built aircraft were active."

So the active number is about two thirds of the registration total from post one.