Source from "Military Wiki"

The UB-16 is a soviet rocket launcher equipped in aircrafts, it is considered light when compraed to its brother rocket launcher, the UB-32.

The rocket launcher UB-16 is identical to the UB-32 while transporting a smaller number of rockets. The UB-16 is much lighter, can be used in smaller aircraft and at the same time can be used in conjunction with other attack systems such as missiles. Like its bigger brother the UB-32, the UB-16 was employed in various systems of Soviet origin, since fixed-wing aircraft (like the MiG-23) to attack helicopters (Like the Mi-24 Hind). The UB-16 launch the successful S-5 Rocket.

this is just side dish, imma planning for join to another, challenge (yea)

Just take the pylon, get to the subassembly, and done

Feel Free to use, Comrades~