What I understand is, as someone mentioned above, when doing IR training in JAA, the aircraft must be IFR certified - you can't fly VFR training IFR in JAA ..
For an aircraft to be IFR certified, the aircraft must be equipped with 2 generators ..
A list I saw last year from my FTO before they bought their Longranger when they were researching the market, that list showed single and twin engine helicopters and their IFR approval, and the only single engine helicopter that can be equipped and certified with 2 generators is the Bell Longranger ..
To carry pax IFR, the aircraft must be twin-engined in JAA - so only training is done IFR on this single engine helicopter - so basically what you can use a SE-IR for is a upgrade to ME-IR, something offshore companies do anyway during your TR course etc. ..
- madman, who is doing his JAA SE-IR in Denmark ..