MamaPut-
I stand corrected. If I hadn't bothered to look in my RFM, I probably would have gotten it correct, but I transcribed incorrectly. I very nearly never trust myself to get engine designations correct.
The cobbled-together USCG HH-65C is sort of like a N3 and sort of like a EC155. It has 2C2-CG (whatever that means) engines and a four-bladed main head, but to my knowledge, still has the 11-bladed tail rotor (haven't seen one lately).