the angle at which an aircraft's wing is set back from a right angle to the body

The critical Mach number will increase significantly

W. G. Molyneux has written:

'Wind tunnel flutter tests on an M-planform wing'

'The aerodynamic effects of aspect ratio and sweepback on wing flutter'

'Summary of present position on flutter and derivative programme'

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern ----PB--K. That is, nine letter words with 5th letter P and 6th letter B and 9th letter K. In alphabetical order, they are:

crampbark

scrapbook

sweepback

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -W-E----K. That is, nine letter words with 2nd letter W and 4th letter E and 9th letter K. In alphabetical order, they are:

sweepback