1.   No fighter aircraft could do it.

2.   None the less, research and development in post-war fighter aircraft went forward at a brisk pace and over a wide range of options.

3.   The new fighter aircraft flies almost twice as fast as the old one.

4.   The original thirty-six aircraft had been increased or replaced by about thirty-six Soviet fighter aircraft.

5.   US planes clashed with enemy fighter aircraft again today.

6.   Fighter aircraft rained down high explosives.

7.   A military agreement with France involving the sale of fighter aircraft had been officially announced in January, and a further bilateral defence pact had been reported in June.

8.   The controls and instrumentation of a modern fighter aircraft, for example, are bafflingly complex.

9.   On the German side a few bombs were dropped to keep up the pretence, but they were left strictly alone by fighter aircraft, of course.