Regarding "oilcanning"

[Randy Haskin]

Originally posted by wingman
being told that in that case the wing was somehow being pressurized at high speed, causing the bays to bulge.

Wouldn't that just be plain old gas constant rules at work? In other words, the fast-moving air on the outside of the ammo bay cover gives it reduced air pressure, and implicitly making the pressure on the other side higher?

[AAFO_WSagar]

Originally posted by Randy Haskin
Wouldn't that just be plain old gas constant rules at work? In other words, the fast-moving air on the outside of the ammo bay cover gives it reduced air pressure, and implicitly making the pressure on the other side higher?

<wondering> if it might be a bit of both pressure and "what you said"

Remembering on MissAshleyII that there was some pressurization going on within the wing at speed due to a small failure in the seal around the inside of the scoop. As I remember, it was made of LearJet door seal, when the old scoop came off in preparation of the "sex change scoop", Bill Rogers found where it had been leaking. This was giving them some measure of fits in keeping the gear doors from "blowing" open slightly from pressure within the wing..

Unsure of the internal layout of the wing on PM versus MA2, or the seal within the scoop but, could be a bit of both going on maybe??

Wayne