£1-2bn black hole

A £1-2bn black hole in the UK defence budget has been a recurring feature of defence reporting for years now. In the past month…ish the following have been announced:

UK T3A eurofighter – 24 cut (offset against Saudi order) – 24 x £50m ea. (approx for ease of calc) – £1.2bn
UK T3B eurofighter – ‘not all’ – assume this will offset 24 for Oman – another £1.2bn
Various ISTAR upgrades (Soothsayer/eagle/helix) cancelled or postponed – £1-1.2bn quoted.
2 off T45s @ £250m – £0.5bn

Now I’m no Einstein but these 4 add to £4.1bn.

Surely this bloody black hole must now be closed…. or is the treasury quickly opening up new ones as quickly as the old ones are closed… or were they never properly budgeted for in the first place?

:confused::confused::confused:

Comments etc from those better informed than myself welcome.