CREATE TABLE table_46983 ("Position" FLOAT, "Pilot" TEXT, "Glider" TEXT, "Speed" TEXT, "Distance" TEXT)

What is Glider, when Speed is '147.3km/h'?
SELECT "Glider" FROM table_46983 WHERE "Speed" = '147.3km/h'
SELECT "Glider" FROM "table_46983" WHERE "Speed" = '147.3km/h'