make sure that our combat aircraft are in future made fully airworthy militarily, which includes being fit for purpose.
At the risk of sounding pedantic, care is needed not to get these terms confused.
I think most would agree that "fitness for purpose" would include an assessment of a platforms ability to operate & survive in a hostile environment.
If you check the regs however, under the MAA02 Master Glossary, the definition of "Air Safety" here...
http://www.mod.uk/NR/rdonlyres/C260E...itialIssue.pdf
is quite clear...
Air Safety
Is the state of freedom from unacceptable risk of injury to persons, or damage, throughout the life cycle of military air systems. Its purview extends across all Defence Lines of Development and includes Airworthiness, Flight Safety, Policy, Regulation and the apportionment of Resources. It does not address survivability in a hostile environment.
Of course platforms should be fit for purpose, but lets not get that confused as something that is part of airworthiness.