hevansrv7a
Well Known Member
Will experimental need an STC? Rotax? Or can we just buy it and use it?
While experimental aircraft do not need an STC for unleaded fuel, you will likely need to update your POH and fuel labeling on/near the fuel caps.
While experimental aircraft do not need an STC for unleaded fuel, you will likely need to update your POH and fuel labeling on/near the fuel caps.
Up North Engraving is apparently not engraving gas caps any more. I’ve looked over Bill’s…no online ordering or credit cards but he’ll supply new top-plates-only for $32 each. Who else does that engraving?
Aircraft Engravers? https://www.engravers.net/fuel-caps.html
No STC needed for G100UL, nor any other fuel for experiment airplanes. In fact… STCs aren’t needed for anything in experimental aviation.
I hear ya, but have a hard time believing GAMI is just going to let all experimentals slide with no payment. The STC cost is how GAMI is recouping some of their development cost. One of the comments on the recent AVWEB article indicates FAA is requiring a list of all aircraft approved for the G100 fuel. I would assume that fuel will not be dispensed to an unapproved plane. Exactly how that would be implemented, I’m unsure, but seems like it could be done relatively easily.
Why doesn't someone that hopes to use the fuel in an experimental, just call them up and ask?
I emailed GAMI yesterday about this. Here is their reply:
“Experimentals do not need an STC to use the fuel. Like any other STC’d product, you can just put it on. However, we would be happy to sell you fuel filler placards if you wanted them. “
Thanks,
Paul Smith
Cool. Another reason I’m glad I own an experimental. Now Just waiting for some G100UL to be available.
It will be interesting to see at what rate G100UL trickles out to the small rural airports.
Why are all you people insistent on adding non-required information on your filler cap placards? The regulations call for "Minimum Octane and Capacity"; Nothing more.
Regulations do NOT call for "lead content" or anything else.
I think you’re misreading those posts, Mel.
Experimental airplanes aren’t beholden to the STC or GAMI’s “suggested” placard, as was clearly stated and nobody is suggesting that. Some of us, however, do need to re-engrave/re-placard because our current caps/placards say “100LL”. Personally, I plan to get new caps that say “AVGAS 91 OCTANE MIN”.
And that's fine. However by adding the word "AVGAS", you are still restricting yourself from using "MOGAS". If you use "91 OCTANE MIN", you have more options.
No, I'm not misreading posts. I know that this thread is about STC requirements.
I'm simply stating that if you label your filler caps "G100UL", for example, you are limiting yourself to that particular fuel brand. Now if "Swift Fuel" calls their's something else, you can't use it. Just like currently most people have labeled "100LL". They won't be able to use 100UL. If they had simply used "100", they can use any fuel with 100 octane, with or without lead.
Completely agree. I especially do not like having a placard that has a particular brands patent number on it like it appears GAMI is selling. Very restrictive to me and pretty selfish by GAMI. I sure will not have a separate placard for ever new fuel that comes to market.
I have no intention ever of using MOGAS, so not a problem for me, but your point is well-taken.
IMHO, that's a little myopic. Someday you might sell that RV-12 and the new owner will be clueless as to the truth of the fuel requirements only being 91 octane, and unleaded is acceptable.
It's an RV-9A with IO-320. If the subsequent owner wants to use a non-Lycoming-approved fuel, he can engrave his gas caps and change the POH to his heart's content but Lycoming doesn't approve any 91 octane D4814 fuels nor any pump gas for that engine.
Ah ****....apologies for horning in. I always just click on "new posts", sometimes don't notice which forum they're in.