New Feature:Hydrogen breathing jets

[Kerbinator-Fras]

Well I want to have jets breathe hydrogen and consume LqdOxygen/LqdOzone(can be done with easy RF modification) for cruise and ascent purpose in gas giant atmosphere.
It has a great advantage since it can support level flight in deeper gas giant atm(at 10atm zone,atm density is 0.8 but rocket engines has already become useless).Also the extremely high sonic speed in Hydrogen atmosphere means that the jets can function at a much higher speed than in Earth atmosphere.
I want to 'land' on Saturn,Uranus and neptune(which means dip into lower atmosphere).
I plan to reach the 50-100 atm level.
Low atm density reletive to pressure means that drag won't be too high,but rocket engines will be ruined.Also low atm density reletive to pressure means the lift will be insufficient for propellers,and this is even worsened becausr of FARc's low lift.So jet is the only solution anyway.