Also if someone in europe offers you an O2, as I was offered. Be very, very warry, as it's more likeley a FTB-337G. Basically a Reims built, stock 337G with under wing stores and in the case of the many that went through Portugal and then Rhodesia (Now Zimbabwe) they also had 7.62mm gpmg's mounted on top of the cabin, bolted directly to the main spar!!. They are worn out death traps.