I was in Oslo a few years back on the B-727 and the pressure was so low that had it been 2/100's lower, we couldn't have taken off. I think it was around 28.10 or something like that.

Coach Ditka vs. God? Ditka by 3....It was close

Excusing my ignorance to the subject, but does anyone out there have any operating limitations for their aircraft/certificate/etc as to the lowest acceptable altimeter reading that flight (takeoff and landings) can be conducted in?

What the performance charts say in the aircraft manuals..........beyond that you just became a test pilot. Most use pressure altitude.

I haven't seen anything in any limitations sections about pressure settings, just things like field elevation or temps.
Example, no T/O and landings at field elevations above 9,500/ft.

Current altimeter setting----------Lowest usable flight level
29.92 (or higher)---------------------------180
29.91 through 29.42------------------------185
29.41 through 28.92------------------------190
28.91 through 28.42------------------------195
28.41 through 27.92------------------------200
27.91 through 27.42------------------------205
27.41 through 26.92------------------------210

I'm not aware of any aircraft where takeoff and landing limitations are based on the altimeter setting. I've always seen the limitations in the AFM that list the highest (maximum) pressure altitude for takeoff and landing.

Given that atmospheric pressure near sea level decreases at roughtly one inch of mercury for every 1000 feet of altitude increase, the recent low pressure system still would not have raised your pressure altitude for takeoff and landing more than 2000 feet above the airport elevation.

I thought Boeing had a few airliners that had maximum pressure altitudes for takeoff and landing in the area of 14,000 feet if not higher. That would be equivalent to taking off from an airport at sea level with an altimeter setting of around 19 inches of mercury.

Legally meeting the AFM limitations for takeoff and landing is one thing, but trying to find a cruise altitude might be a challege in aircraft where the altimeter setting cannot be adjusted below 28.00 inches of mercury. Not to mention how much faster your TAS will be in relation to IAS as you make a landing approach!

Looks like ATL is getting ROCKED as well w/ T-storms. Be careful all!!

Baja.

Where is this???:confused:

AirNav: KFOZ - Bigfork Municipal Airport

Big Fork Municipal Airport
Big Fork, MN

GJ