 The Mk 2 version was to be fitted with the Orenda PS @-@ 13 Iroquois engines and would be evaluated by RCAF acceptance pilots as well as Avro test pilots . The new PS @-@ 13S engines were designed to produce 30 @,@ 000 lbf ( 130 kN ) each . The Astra / Sparrow fire control system had been terminated by the government in September 1958 with all aircraft to employ the Hughes / Falcon combination . At the time of cancellation of the entire program , the first Arrow Mk 2 , RL @-@ 206 , was ready for taxi trials ; Avro expected it to break the world speed record , but it never flew . 
