This programme will extend the operational life of the Puma helicopter fleet and is to significantly enhance its capability – particularly in demanding hot and high conditions. It will improve the safety and performance by providing new engines, a digital flight control system, increased platform survivability and enhanced navigation and communications.
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Upgraded RAF Puma Mk 2 Makes First Flight | Air Force News at DefenseTalk
A complete new aircraft i doubt, same fatigue life on the airframe but maybe a life extension. I agree it will be an enhanced aircraft over it's predecessor but as in the lynx 9 it will not be new. The RAF guy's are getting anxious as the possible loss of the Puma 2 on top of the Merlin is a massive hit in the SH role it has had a large foot print in for so long. Not RAF bashing but the writing is on the wall as far as i see it. All fixed wing to RAF and rotary to be AAC & Navy.