oxenos
Surely the only Shack that could jettison fuel was the Mk 3, from the tip tanks. Of course, in latter days the Vipers proved to be fairly strong competition.
The approved 'tattic' (sic) for all the Kipper Fleet vs Migs (or anybody else who tried to shoot us through the kitchen) was undoubtedly:
"Stay calm and sedate,
Shove all 4 through the gate,
And smother the bast*rd in oil!"
From "Shackletons Don't Bother Me"
PPRuNe Passim, ad nauseam.