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Oh no, I wasn't talking about octane *molecules* but octane *rating*. Let me turn the adjectives into prepositional phrases.

At any given flash, there are molecules of zero octane (rating) and...

Ron,

In fact octane rating is defined by the properties of a very specific iso-octane molecule, 2-2-4 trimethyl pentane. So octane rating is very much related to octane molecules... That's how...

ray,

octane rating is is about resistance to detonation under pressure... Mid-process in the combustion process. Your Unpressured bonfire experiments are not parallels. Jet or diesel have an...

Flash and octane rating re unrelated... At any given flash point, there are zero octane and 100 octane molecules available.

Paul

>> The more remote you are, the less ADS-R traffic you see as you are relying on Center's radar to see the traffic

If you're relying on radar to see traffic, the 1090 reception isn't going to help...

Let's see... it says, "91 Octane Minimum"

But then... note the thread title, "Piper completes flight tests of Archer fueld by 93 Octane"

It seems we have a disconnect here...

Of course, in...

Thanks for sharing your source material, I Fly... yeah, you did mistate the gasoline octane.

Your O320 is approved for use with 80 octane avgas... that is 80 Motor Octane Number (MON).

That...

What manual is that, I Fly? Are you referring to the Lycoming Service Instruction on acceptable fuels, and specifically 87 AKI mogas?

Octane numbers without a frame of reference can be...

>> which is why a marriage license/certificate is valid in all fifty states...

Oh yeah? Don't tell my gay nephew that, unless you have time for a lecture! :-)

Also note that Electroair has certified fine wire and massive electrode plugs with a large gap, 035 IIRC. SO, lots of alternatives! :-)

Paul