Authority
ASTM
Applicability
Features, characteristics, performance and functional requirements/limitations for the light-sport category standards framework.
Status
Published
Plain-English Explainer
F3851-26 defines requirements and limitations for light-sport aircraft features, performance and functions. F3840-26 explicitly places powered-lift/multicopter integration within this scope.
It is a consensus standard, rather than a regulation or an individual aircraft approval. US applicants must use the FAA-accepted integration and functional-standard framework applicable to their aircraft category and configuration.
Only the official public catalogue scope was used here. The catalogue's last-updated date is not treated as the standard's legal effective date.