Thx for the info Warrior !! I think I'll add wingtanks too, but first I have to get new springs for my landinggear, cause the old ones are elongated and the jet is a bit low on the ground now for wingtanks underneath.

Took some pictures in flight last weekend and achieved a new topspeed : 328 km/h. Not worldshocking, but not bad either I'd say for a trainer :-)