He joined the Royal Air Force (RAF) in 1991, being commissioned as an acting pilot officer on 9 May.[1][6] His rank was made substantive on 9 May 1992 and advanced to flying officer twelve months later,[7][8] before he was posted to the Harrier Force in 1995.[1] He was advanced to flight lieutenant on 9 November 1996.[9] Smyth served with No. 1 (Fighter) Squadron as weapons instructor from 1999, and was promoted squadron leader on 1 July 2001.[10] As a Harrier pilot, he flew operational missions over Bosnia, Kosovo, Serbia, Iraq and Afghanistan.[11]
Smyth was appointed as the first Director Space in February 2020,[20][21] and was succeeded in command of No. 1 Group by Air Vice-Marshal Allan Marshall.[22] Reporting on Smyth's new post, Defense News wrote that "up to 25 civilians and military personnel involved in finance, policy and capabilities will support the new space directorate" in the Ministry of Defence's Main Building.[20] It also wrote that No. 23 Squadron RAF had been reformed, as a space squadron, "responsible for day-to-day space command-and-control" and the remote control and manoeuvring of satellites.[20] Smyth was appointed Companion of the Order of the Bath (CB) in the 2020 Birthday Honours.[23] He was promoted to air marshal on 26 August 2022,[24] on his appointment as Deputy Commander Operations.[25] In December 2023, it was announced that he would be the next Deputy Chief of the Defence Staff (Military Strategy and Operations); he succeeded Sir Roland Walker in the role in March 2024.[26][11]
Private activities
Smyth is patron of the Jon Egging Trust which commemorates Flight Lieutenant Jon Egging, who died in an accident in 2011 as part of the Red Arrows flying display team after succumbing to g-LOC.[27]
^"RAF Senior Appointments". raf.mod.uk. Royal Air Force. 8 January 2020. Retrieved 17 February 2020. Air Vice-Marshal H Smyth OBE DFC to be appointed Director Space in the Ministry of Defence in February 2020. This is a new post.
^"RAF Senior Appointments". raf.mod.uk. Royal Air Force. 3 February 2020. Retrieved 5 February 2020. Air Commodore A P Marshall OBE to be promoted Air Vice-Marshal and to be Air Officer Commanding No 1 Group in March 2020 in succession to Air Vice-Marshal H Smyth OBE DFC
^"Senior Appointments: 2023". raf.mod.uk. Royal Air Force. 14 December 2023. Retrieved 22 December 2023. Air Marshal H Smyth CB OBE DFC to be Deputy Chief of the Defence Staff Military Strategy and Operations in March 2024, in succession to Lieutenant General Sir Charles Walker KCB DSO.