Correct, the RAF F4s outer wings were mechanically lowered and locked. However, this did not stop the creeping fatigue that continuously travelled back and forth through the F4 wing from letting the odd outer wing depart leaving the crew badly placed in terms of roll control. Recovery was gained by resort to Martin-Baker.
It the final days of the UK F4, the amount of extra metal on the wing under surface was a sight to behold.
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