The Supersonic Canberra

The yak-28, i still don’t understand why it was replaced, why it design was abandoned for the mig-27, su-17, and then.. the Su-25?

The yak-28 had everything the 27 and 17 had, and with the mig-21 engines , idea that was used for the su-25, the yak was supersonic, twin engined multirole airframe, is the only aircraft i would call ‘supersonic canberra’ (please if there is other similar plane let me know)

Would like to learn more about it operative history, i have not found pictures from it inside, if somebody have them , please post them here 🙂