Originally Posted by
HelixCarbon
We are ASTM approved (approved? certified? compliant? one of those words) for Rotax engines.
In general, what word used depends on the aircraft category and whether it falls under a Standard AWC or Special AWC. For an S-LSA, it would need to be compliant to an FAA accepted ASTM standard. However, that level of compliance is determined at the aircraft level under their Letter of Compliance to the FAA.
As I understand it, under the new rules, a manufacturer can take a look at our data and decide that the propeller meets their airworthiness requirements, in which case no further testing is required.
They do that now under the current rules. My point is you stated your plan was to approach the individual owner before the manufacturers. However, without the OEMs acceptance first, the owners cannot install your prop per the old or new rules without additional requirements or authorizations.
They may, however, as you said, wish to see performance data specific to their aircraft, in which case flight testing would have to be done.
Not quite. You are intermixing requirements between different aircraft categories. Perhaps research the different requirements between an S-LSA, and E-LSA, and an experimental amateur-built (E/AB) aircraft, or discuss this with your American partner. All have unique requirements to use your new props.