 Go @-@ ahead on the production was given in 1955 . The rollout of the first CF @-@ 105 , marked as RL @-@ 201 , took place on 4 October 1957 . The company had planned to capitalize on the event , inviting more than 13 @,@ 000 guests to the occasion . Unfortunately for Avro , the media and public attention for the Arrow rollout was dwarfed by the launch of Sputnik the same day . 
