[hyair]

The Fantan was developed in the 60's in China on the basic design of the Mig -19 which saw great sucess in service and maybe 4000 were built !
However the Mig -19 had it's limitations- very short range , very small load capacity for weapons and simple gunsight for air to ground role.
In the Fantan the front air intake was relocated to the sides of the body and a new radome was installed with pointed nose. The added space was used to have an internal bomb bay and electronic equipment in the radome.
The plane was added with more pylons points under the wings and lower body and was able to carry considerable amount of weapons.
Attached are some images of the two showing the main differences.