Moggi,
I know this is a huge thread and there has been another on the topic of Mil IR/Civil validity so I'll try and be brief.
You cannot use a Green Rating on any fixed wing ac for the purposes of starting your first Civil MPA Type Rating, it has to be a ME Green IR. If you're not a current truckie you'll be strapping the Duchess on again.
Policy Dept CAA have stated the following;
We discussed the ME IR which is one of the pre-requisites in order to gain the first MPA Type rating. You highlighted the LASORS 2010 text of para F4.1 b) which includes the following: “A UK QSP who has held a Green IR within the preceding 5yrs is deemed to hold a ‘current and valid’ IR.” I confirmed that given the paragraph starts with ; “Hold a current and valid Multi Engine IR…….” it is reasonable to assume that all subsequent IR references would be in relation to Multi engine IRs, even though this may not be specifically stipulated. The requirement of holding a current and valid ME IR, or in the case of a QSP, a ME green IR (within the last 5yrs) has been, and is Policy.
I was arguing the case for a Hawk candidate about to join our airline who had been verbally informed at the CAA counter Gatwick that his Green Hawk IR was sufficient. That advice was deemed to be incorrect as you can read and he had to strap on a Duchess.
Good luck.