fuel temp control in wing tanks
heard b717 is only jet enabling control of fuel temp in wings by controlled backfeeding of warm fuel from engine, probably from oil cooler.
would appreciate this feature on other planes where cold soaked fuel after long flights leeds to unnecessary stress for pilots for things like:
- resulting fuel temp in different wing sections after refuelling;
- resulting fuel temp after switching on fuel pumps;
- check for build up of clear ice during approach;
- antiicing required when dry wing but rain expected during taxi-out.
who knows more about:
- efficiency of engines with or without fuel heating feature;
- plans of manufacturers to introduce wing fuel temp control
thanks
max