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readback reconfirm Red Baron regional jet reheat rejected takeoff RF RFC RH RIO RJ rocket aircraft rocket belt rocket pack roll roll rate rollaboard rotating beacon rotation roundel RPP RR rubber jungle rudder Sandy SCA Schwalbe scramjet SEAT second officer section short finals sideslip SITI

SITO sked sky girl slam dunk approach slam-dunk approach slamdunk approach SLD slot SLUF SOTI SOTO spar Special Service Requirement splash-and-dash spoiler squawk SSR SST SSTO stall Starfighter stealth bomber stealth fighter stealth fighters steering column stick stick pusher stick shaker STOL STOLport STPC strake stripless

Sturmvogel Sukhoi supercruise supermaneuverability tail dragger taildragger taileron tailstrike tally tallyho tarmac taxiway TCA TCAS TCP technical stop TEL terminal control area Thach weave third officer three green three-pointer thrust reverser ticket point mileage ticket time limit ticketer touch down touch-and-go touch-and-go landing touchdown TPM tractor traffic conference area