Checkout_my_Six
Touchdown! Greaser!
Meh....all the flub-hub over the leakage. Like a AvWeb commenter said....it's probably some kids chocolate ice cream cone rubbed on the bottom of that wing. Nothing to see here folks.....![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Magnetos can be reliable. We don't actually have to rebuild them every 500 hours, only inspect them. And those flying part 91 don't even have to inspect them (it's not an AD), though it is a good idea to do so. If it passes inspection, as it often does, put it back into service.the fact that you have to rebuild a magneto every 500 or so hours tells me that reliability was not an option. if you can rebuild a farm tractor mag you can replace a battery.
It’s not the greed, etc. that’s the problem. It would work out just fine if the gov would allow the best solution to enter the market and let the chips fall where they may. The guy who came up with GAMI was probably “greedy” when wanting to make a profit with his formula. He should be allowed to do so.And greed and self-serving behavior on one, both, or many sides of the investments in aviation fuel keep the rest of us and the environment in limbo one more day while the truth is buried in there somewhere, whatever it is.
The existing ATSM spec was created after 100LL was in use, and basically documents almost every testable metric at the time for a combustible fuel.
Local or federal government?Show me where the gummint is holding GAMI back....they just approved an AML wide STC for the use of G100UL. Supply and demand is at work here.....![]()
Show me where the gummint is holding GAMI back....they just approved an AML wide STC for the use of G100UL. Supply and demand is at work here.....![]()
In general, paper pushers can never get in trouble for saying no. But they can get in trouble for saying yes.
An interaction I had with a county supervisor gave me the impression that some local government officials don't want to lose a pretext for closing airports....3) Local governments that operate and attempt to regulate airports. Some want to ban leaded fuel, some don't want the boat rocked, and none want to spend any of their own money....
The existing ATSM spec was created after 100LL was in use, and basically documents almost every testable metric at the time for a combustible fuel.
It’s not the greed, etc. that’s the problem. It would work out just fine if the gov would allow the best solution to enter the market and let the chips fall where they may. The guy who came up with GAMI was probably “greedy” when wanting to make a profit with his formula. He should be allowed to do so.
At minimaAre they really going to stretch this thing out to 2030?
This reads like a smartass trying to get a quick comment in to someone unprepared to respond. George is pretty quick himself, and was obviously prepared.A commenter to Martin's video provided:
View attachment 131981
I found it interesting that they went to George to do the UND/UL94 testing. That told me they did extensive testing with their own fuel and nobody else was set up for it.I encourage everyone to view the important part in the video that Martin posted -- namely regarding DETONATION -- that begins at 25:37.
This compares the detonation possibility of 3 fuels... G100UL, UL94, and the Eagle/EBTE. Pretty conclusive IMHO that only G100UL is "detonation-improbable".
As George says, "it's about DATA"... something that GAMI has... and apparently of which the other parties had/have very little. Could it be that GAMI has the most capable aviation piston engine test stand in the country/world?
Yep. Furthermore, George even has a suggested fix for UND/UL94 (i.e. reduce timing to 20-22 deg). And no one paid GAMI to do this detonation testing of UL94 and Eagle/EBTE!I found it interesting that they went to George to do the UND/UL94 testing. That told me they did extensive testing with their own fuel and nobody else was set up for it.
As George says, "it's about DATA"... something that GAMI has... and apparently of which the other parties had/have very little. Could it be that GAMI has the most capable aviation piston engine test stand in the country/world?
Yup.....and when I worked in industry we farmed out R&D engine testing to Rouch. They have very capable engine labs for testing....I'll bet far exceeding George's rigs.Perhaps that is true within the aviation industry. There are various test facilities around the US that I expect could handle the task of performing the testing, if they were asked to. The question is, have these guys bothered to pursue it?
I’m not trying to downplay GAMI or what capabilities they have, I’m just suggesting that aircraft engines and testing them isn’t anything particularly magic.
You seem stuck on this topic and I don't think you realize that's not how piezo sensors work. The same noises (aka vibrations) in a car motor are in a tractor/airplane motor. About the only thing that makes airplanes loud is the lack of a muffler (a real muffler) and associated headers/exhaust.Yes, the knock sensor has a narrow frequency range of vibration which is masked by other vibrations or "noise" in the system.
Another point about GAMI having the data. If GAMI is the only one already set up to test the fuel/engine. How are the Gami gas competitors going to test their fuel in the same way?Yep. Furthermore, George even has a suggested fix for UND/UL94 (i.e. reduce timing to 20-22 deg). And no one paid GAMI to do this detonation testing of UL94 and Eagle/EBTE!
Yep, this. More direct anecdotal info - run the Turbo Buick with an open dump and they are OBNOXIOUS. Knock sensor still works.You seem stuck on this topic and I don't think you realize that's not how piezo sensors work. The same noises (aka vibrations) in a car motor are in a tractor/airplane motor. About the only thing that makes airplanes loud is the lack of a muffler (a real muffler) and associated headers/exhaust.
You can tune a piezo to a very specific frequency and ignore all the other sounds, its done all the time with proper high/low pass filters and design of the pickup.
Here's a simple test you can do. Take off your exhaust/muffler on your car. Even with all the new noise, the knock sensors still work.
CFR (Cooperative Fuel Research) if memory serves me correctly? Single Cylinder, handle on the side to raise and lower the cylinder? Looked like an antique even back in the '70s...Super old technology test engines, dinosaur-like (sound familiar?)
Under which law and using what funds??????FAA could simply buy the GAMI formula and make it the approved formula. Someone else said it above - it’s not a technical issue, it’s a paper work / bureaucratic issue.
No, but VP or Swift could...or any other company that has the ability to push it into the market.FAA cannot go out and just buy the GAMI formula.
No, but VP or Swift could...or any other company that has the ability to push it into the market.
So it would take both a change in the law and also funding from Congress specifically for this purpose.
CFR (Cooperative Fuel Research) if memory serves me correctly? Single Cylinder, handle on the side to raise and lower the cylinder? Looked like an antique even back in the '70s...