'Oil Canning', I suspect, is another term for 'panting' the flexing and distortion of metal panels due to pressure changes. Experienced the effects in a Puma doing a test schedule at Boscombe with both cabin doors open at high - ish speed. The accompanying pressure fluctuations were VERY uncomfortable on the breathing process!
I appear to have written too short a comment - must be a first for everything - here's hoping this is now sufficient!
Last edited by Cornish Jack; 27th Nov 2019 at 18:00.
Reason: Too short!!