PPRuNe Forums - View Single Post - Pressue differential

21st March 2006 | 15:22

#2 (permalink)

Three Blades

Joined: Jan 2005

Posts: 189

Likes: 0

From: UK

Cabin pressure will be very roughly 1000mb - 330mb = 660mb (or 693mb more accurately).
So if you are at 300mb equivalent altitude then the differential is 693-300 = 393.

I think !