"KDR" wrote...
If necessary, is it possible to use F-76 as aviation fuel? I've read
somewhere that the RN's Invincible class carrier can trade off her
endurance for embarked air group's endurance by using ship fuel tanks
as 'swing tanks'. Can anyone confirm this one way or the other?

I believe the ship can burn the jet fuel, but the jets cannot burn the ship's
diesel/turbine fuel.

Many modern jet engines are very sensitive to fuel type because of the high
temps and close tolerances within the engines. The older J-85 could use JP4 or
5; Jet A, A1, or B; and 115 AvGas; I don't remember if it could use F-76.
However, the J-52 could not use AvGas.

In the US navy, the nuclear powered carriers only carry JP4 or JP8 (and all
on-board diesel-powered equipment use the JP), so any smaller ships that refuel
from the carrier (a relatively common practice) get the jet fuel. I've talked
with several "oil kings" in the past, and they all told me the diesels much
preferred diesel fuel over JP because of its lubricity and energy content. The
big turbines didn't much care.

Another problem would be the aircraft engines' lesser tolerance for water
contamination. The ship would have to keep the higher contamination standards
for any fuel transferred to aircraft.