Submitted by newpageone t3_y88ags in WorcesterMA
Swak_Error t1_it2baj7 wrote
Reply to comment by ganduvo in Fighter jets over south side by newpageone
It's the nozzles at the end of the engine adjusting as they change engine output to adjust speed
ganduvo t1_it2ggy3 wrote
Huh that's neat
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