Engines under consideration for the Super-7 !!

I found some very crude “babelfish” translations of early engine-“competition” for the “Super-/” when Western assistance was still under way !

All what I could extract is that there were the following engines under consideration:

• Pratt & Whitney PW1212 turbojet, itself an improved version of the basic American J52 with features of the JT8D offering faster response to throttle movements, greater fuel economy and stall-free operation (to be designated J52-P-409 in US service and proposed without afterburner for the EA-6B Prowler)

• Pratt & Whitney PW1216 turbojet [unsure modus on] related to an update kit for the Chinese WP-7BM or even WP-13 with Western items … is that true ??? [unsure modus off] with a thrust of 5400 kp and 7425 kp with afterburner (air-flow of 81 kg/s) and a unit price of around US $ 2 Mio.
The weaknesses of both engines were especially their age – being originally developed to power the A-4 Skyhawk in 1962 and the Fishbed itself – and some necessary changes to the intake-design. Additional it would have required a strengthened airframe adding around 135 kg of additional weight.

• Pratt & Whitney PW1120 turbofan, with the highest thrust but also the highest price of all contenders with 6122 kp and 9387 kp with afterburner (air-flow of 81 kg/s).

• General Electric F404 turbofan with a thrust of 4790 kp and 7711 kp with afterburner (air-flow of 68 kg/s) for a unit price of around 1,8 Mio. US $.

• Turbo Union RB.199-127/128 turbofan with a thrust of 4123 kp and 7430 kp with afterburner (air-flow of 68 kg/s) for a similar unit price.

• At least until the final cancellation of the Super-7 another contender appeared in the form of the WP-14 “Kunlun” which was at a too early state of development. (????) :confused:

Can anyone help me out with these contenders and / or some more technical aspects ????

Thanks in advance,

Deino 😀