Hmmmm and how much to upgrade SK4 fleet with twin power turbine Gnomes and drive thru a life extension programme. £600 Mill to sort the SK4 fleet and also generate a sizeable SK6C fleet of 20 plus A/C.
No need to upgrade PUMA, a 60 A/C fleet of SK4/6C would cover any capability gap. Lots of read across...Carson MRB, AW 5BTR, for increased hot and high capability.
British jobs for british workers.....PUMA upgrade's dead in the water IMHO