Quote:
Joe
If it is secured properly, there is no way to open during flight. The vacuum holds it closed (guess) because you sure cannot open it during flight. I've tried, it doesn't work. What alt were you?Originally Posted by joepilot
Can the 747 overhead emergency escape hatch be opened in flight? Yes, and I have. When is it advisable to do so? Only when you have failed to check that it was properly closed before flight. You do have to depressurize before opening, but you will know about the problem by the time you reach 1,000 AGL.Joe