Conventional ("tailhook") aircraft rely upon a landing signal officer (LSO, radio call sign paddles) to monitor the aircraft's approach, visually gauge glideslope, attitude, and airspeed, and transmit that data to the pilot. Before the angled deck emerged in the 1950s, LSOs used colored paddles to signal corrections to the pilot (hence the nickname). From the late 1950s onward, visual landing aids such as Optical Landing System have provided information on proper glide slope, but LSOs still transmit voice calls to approaching pilots by radio. COUNT 5
QSN1 What does LSO stand for? ANS1 landing signal officer QSN2 Who does a conventional aircraft rely upon to moniter the aircraft's approach and transmit the data to the pilot? ANS2 a landing signal officer QSN3 What did LSO's use to signal corrections to the pilot prior to the angled deck designs introduced in the 1950's? ANS3 colored paddles QSN4 Which visual landing aids have provided information on proper glide slope since the late 1950's? ANS4 Optical Landing System QSN5 What are LSO's still being used to do? ANS5 transmit voice calls to approaching pilots by radio