Federal Aviation Regulations Knot Threshold 
AV Web
JULY 1, 2025
The max stall speed is 45 knots and the max full-power cruising speed is 120 KCAS. Special Light Sport (S-LSA) are factory-built aircraft that meet industry-developed consensus standards and not Federal Aviation regulations and are issued a Special Airworthiness Certificate. GPH on 92 knots.
AV Web
APRIL 15, 2025
Seems the accident helicopter was the subject of a FAA Special Federal Aviation Regulation (SFAR), which specified academic, flight training, qualification, and currency requirements for pilots acting as pilot-in-command. Seconds later, the main rotor disc severed the tailboom. Again, post-accident formalities proved awkward.
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