11 Jul 2025, 06:42 [ UTC - 5; DST ]
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 07 Jun 2025, 21:02 |
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Joined: 05/09/18 Posts: 1118 Post Likes: +781 Location: Tucson, AZ
Aircraft: 1980 TR182
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Username Protected wrote: No bias there, whatsoever.  Hello Stan, Is there a fact you dispute, or are you just being disagreeable? Paul
Let’s see, you accuse Lyondell of being like a little kid with a hammer looking for a nail to pound and you accuse me of being disagreeable? How quaint, and thoroughly professional.
“3) Lyondell began with the solution in mind: better utilize their ETBE manufacturing capability. So like the little kid with a hammer, every problem looks like a nail. They’re not searching for the best unleaded avgas, they’re seeking an outlet for their manufacturing capacity.”
If you’re not seeing your all-in bias for G100UL here and elsewhere (including in the CEH litigation), then I’m certainly not going to be changing your mind about much of anything.
_________________ Stan Kartchner Tucson, AZ (KRYN]
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 07 Jun 2025, 23:05 |
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Joined: 02/16/09 Posts: 3181 Post Likes: +2266 Company: Cardinal Flyers Location: Berkeley, CA
Aircraft: Turbo Cardinal RG
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Username Protected wrote: Is there a fact you dispute, or are you just being disagreeable?
Let’s see, you accuse Lyondell of being like a little kid with a hammer looking for a nail to pound and you accuse me of being disagreeable? How quaint, and thoroughly professional. “ 3) Lyondell began with the solution in mind: better utilize their ETBE manufacturing capability. So like the little kid with a hammer, every problem looks like a nail. They’re not searching for the best unleaded avgas, they’re seeking an outlet for their manufacturing capacity.” If you’re not seeing your all-in bias for G100UL here and elsewhere (including in the CEH litigation), then I’m certainly not going to be changing your mind about much of anything. So... you don't dispute the facts as described? You've identified no misstatement.
You're just fussing about form, not content?
Paul
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 09 Jun 2025, 13:42 |
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Joined: 12/05/19 Posts: 70 Post Likes: +119
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Eagle sent out an email update today mentioning there is an interactive toolkit on their website now showing detailed progress for VP's fuel, including materials, paint, engines tested to date, etc. Interesting to see the details on each. Attachment: email.jpg Attachment: interactivetoolkit.jpg Attachment: progress2.jpg Attachment: progress.jpg
Please login or Register for a free account via the link in the red bar above to download files.
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 09 Jun 2025, 14:09 |
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Joined: 12/12/07 Posts: 7992 Post Likes: +3522 Location: Dallas, TX (KADS)
Aircraft: 1969 Bonanza V35A
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Username Protected wrote: That's a question for the FAA. Some of it is outlined here: https://flyeagle.org/wp-content/uploads ... t_PAFI.pdf. Timing changes would fall under minor alterations. CR changes would be a major alteration. Our company will wait for this PAFI process to play out and provide fuel if the marketplace wants it. My answer was incorrect, timing changes will also be a major change requiring a form 337.
And, what would need to be included with this form 337?
The 337 evidence what work constituting a modification was done - but you cannot simply fill in a form and go fly - the executing mechanic, manufacturer, Repair Station or Certified Maintenance Organization must include data evidencing that the aircraft is airworthy, and must incorporate all required changes in operating data and limitations.
Will Lyondell be conducting a test regime on each airframe/powerplant combination? And yes, this question is not meant seriously.
The only FAA approved 100UL fuel will operate every spark ignition engine in the fleet without meaningful performance changes - and this is huge. It is clear that there may, in some aircraft, be a requirement for replacement of seals and O-rings, and great care around (at least some) paints.
But the fuel performs.
_________________ PP, ASEL, Instrument Airplane, A&P Texas Construction Law: http://www.TexasConstructionLaw.com
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 09 Jun 2025, 15:23 |
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Joined: 11/03/08 Posts: 16400 Post Likes: +27616 Location: Peachtree City GA / Stoke-On-Trent UK
Aircraft: A33
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Username Protected wrote: My answer was incorrect, timing changes will also be a major change requiring a form 337. Hi Dan, the data behind that 337 will be the challenge. For example if you look at the past, some of the STC's for using autofuel in aircraft required climb-to-altitude cooling tests, single-engine ceiling test, etc. When you start thinking about a fleet-wide change in engine performance that is going to impact every airframe differently and require flight testing of each model to develop the new performance charts to accompany the STC documentation. It is certainly an ambitious path you have chosen, as opposed to just making a fuel that keeps engine configuration and performance unchanged from what was originally in each airframe model's TCDS.
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 09 Jun 2025, 15:30 |
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Joined: 05/01/14 Posts: 9439 Post Likes: +16136 Location: Операционный офис КГБ
Aircraft: TU-104
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Username Protected wrote: It is certainly an ambitious path you have chosen, The path they have chosen is to not be involved in any of that work that adoption of their fuel will require, and certainly not to be responsible for any costs or liabilities related to the shortcomings of their product. Their only ambition is to use politics to shove their garbage non-solution down other people throats and expect other people to bear all the costs and risks while they receive the profits.
_________________ Be kinder than I am. It’s a low bar. Flight suits = superior knowledge
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 09 Jun 2025, 20:05 |
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Joined: 02/21/11 Posts: 749 Post Likes: +976 Location: Northside of Atlanta
Aircraft: RV-6 & RV-10
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Username Protected wrote: My answer was incorrect, timing changes will also be a major change requiring a form 337. Hi Dan, the data behind that 337 will be the challenge. For example if you look at the past, some of the STC's for using autofuel in aircraft required climb-to-altitude cooling tests, single-engine ceiling test, etc. When you start thinking about a fleet-wide change in engine performance that is going to impact every airframe differently and require flight testing of each model to develop the new performance charts to accompany the STC documentation. It is certainly an ambitious path you have chosen, as opposed to just making a fuel that keeps engine configuration and performance unchanged from what was originally in each airframe model's TCDS.
I suspect that without the magic of lead, you won't get a fuel that has the necessary octane to feed all engines AND is chemically compatible across the board AND doesn't break the bank. Its a heck of a problem and someone's ox is probably getting gored any way you look at it.
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 09 Jun 2025, 20:25 |
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Joined: 06/07/19 Posts: 406 Post Likes: +860
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Username Protected wrote: Has anyone checked on Matt S???? His spirit seems alive and well in this thread.
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 09 Jun 2025, 23:43 |
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Joined: 01/30/09 Posts: 3713 Post Likes: +2346 Location: $ilicon Vall€y
Aircraft: Columbia 400
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Username Protected wrote: I suspect that without the magic of lead, you won't get a fuel that has the necessary octane to feed all engines AND is chemically compatible across the board AND doesn't break the bank. It’s a heck of a problem and someone's ox is probably getting gored any way you look at it. Yup. The entire light piston aircraft industry needs to move to power plants that don’t have such high octane requirements. Long term, we can’t survive on boutique fuels long term. It will have be something easily made with the refinery blending stocks for other mass market gasolines. Till then, it’s going to be a winding road for the whole fleet.
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 10 Jun 2025, 00:43 |
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Joined: 12/10/07 Posts: 35189 Post Likes: +13670 Location: Minneapolis, MN (KFCM)
Aircraft: 1970 Baron B55
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Username Protected wrote: The entire light piston aircraft industry needs to move to power plants that don’t have such high octane requirements. Long term, we can’t survive on boutique fuels long term. It will have be something easily made with the refinery blending stocks for other mass market gasolines. The problem with that is the aircraft fleet has a very long half life so it's likely that there will be a big market for 100 octane avgas for the next 50 years or more.
_________________ -lance
It's easier to fool people than to convince them that they have been fooled.
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 10 Jun 2025, 00:53 |
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Joined: 11/08/18 Posts: 788 Post Likes: +453 Location: Menlo Park, CA
Aircraft: B36TC
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In other words, for us, in this life, for the time being, G100UL, taking into consideration the recommendation about maintenance by GAMI is still the best option (can be used by 100% of the fleet), if unleaded is what we need to look for.
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 10 Jun 2025, 00:58 |
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Joined: 01/31/10 Posts: 13525 Post Likes: +7615 Company: 320 Fam
Aircraft: 58TC, E-55, 195
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Username Protected wrote: In other words, for us, in this life, for the time being, G100UL, taking into consideration the recommendation about maintenance by GAMI is still the best option (can be used by 100% of the fleet), if unleaded is what we need to look for. What is the motivation to pick the winner long before the process is over? We are the customers, and we will benefit from having more options to compare.
_________________ Views are my own and don’t represent employers or clients My E55 : https://tinyurl.com/4dvxhwxu
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 10 Jun 2025, 01:14 |
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Joined: 11/08/18 Posts: 788 Post Likes: +453 Location: Menlo Park, CA
Aircraft: B36TC
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Well, I am not picking a winner. I am buying it, using it. There is no other option at hand.
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Post subject: Re: New member in Houston, TX - Unleaded avgas project lead Posted: 10 Jun 2025, 04:16 |
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Joined: 01/30/09 Posts: 3713 Post Likes: +2346 Location: $ilicon Vall€y
Aircraft: Columbia 400
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Username Protected wrote: The problem with that is the aircraft fleet has a very long half life so it's likely that there will be a big market for 100 octane avgas for the next 50 years or more. As I've said before, the best thing that could have happened is 50 years ago, in 1975, the government should have just put it down as law, that in 50 years, leaded avgas was going to go away. That would have caused a lot of bitching, but it probably would have re-invigorated light GA with new technology and maybe, just maybe, we'd all be in better shape today, flying newer aircraft, or at least aircraft that have been re-engined with more modern designs. It's not a "big" market. It's a small market, and it gets smaller every year and we're unlikely to remain large enough to be interesting to sell into.
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