After completion of its test programme, the SB5 eventually joined the fleet of the Empire Test Pilots' School (ETPS) at Farnborough in 1967, as is evidenced by the ETPS 25th Anniversary brochure in 1968.
Nach Abschluss seiner Testprogramme kam die SB.5 1967 zur Empire Test Pilots' School (ETPS) in Farnborough, wie die ETPS 25th Anniversary Broschüre 1968 belegt.