I see that big planes (for example B737, A319 etc and up) always need a staircase or a boarding tunnel in order for crew or passengers to enter the cabin since the position of the entry door is quite high (meters above the ground). What solutions are there if none of these options are available? (Except, obviously, for aircraft like DC-9's/MD-82 and 727's which had the rear entrance) How could the pilots get in? Is there some sort of manhole under the aircraft that can be opened to get inside with a sliding staircase or similar?
Living in Africa, I have been to a couple of airstrips where these aircraft do land. Obviously all the airports had stairs but since we cope with some strange situations over here, the question came into my mind. What is the alternative should something go wrong and no traditional means be available to get in the plane?
There are no rear entrances these days, but many smaller jets like the Avro-RJ, Bombardier CRJ series or Embraer regional jets have their own air-stair on the main (front left) door. On the smaller planes the door are hinged at the bottom and the stair are part of the inner side of the door, on the larger ones there may be folding stairs stowed beside the door. B737 can have those too, but it's optional, so many operators choose not to have them (and on second-hand aircraft the operator sometimes bother removing them, but rarely adding them back). I've never heard of them on A320 family as it's a lot higher.
You can get always out using the emergency slides and in cockpit they have a rope to climb down through the side window (where it's too high to jump from it) in case the cockpit door can't be used (happens sometimes).
However the only way in is using stairs. It's hard to imagine you wouldn't be able to scramble at least a ladder even at very remote landing strip where the plane has made an emergency landing. Regular landing will obviously not be done to a place without regular stairs (unless the plane has integral airstairs, of course) and if it was emergency landing you need to bring in mechanics and fuel to get the plane out, brining a ladder is not much extra trouble.
Some large aircraft (like Air Force One) have been specially modified to include air stairs so that they don't have to rely on equipment on the ground:
The air stairs are quite heavy though, so most airlines have made the business decision to remove them (to save money) and only operate out of airports that have appropriate ground facilities, including stairs. If something happened and the stairs were not available on the ground, they would simply divert or reposition to an airport with adequate facilities.
In Canada's northern areas older large planes are used for freight. The crew just bring along an aluminum ladder.
At Cairo West, a joint Egyptian-US military airfield, we once used a fork-lift with an empty pallet to get military personnel on and off a 747-200 when the stairs weren't available. It took awhile. That was the method sometimes used to get JFK on Air Force One (when that airplane was a 707 and never in public view, although one picture got out) to avoid him exacerbating his back troubles by walking up the stairs.
Also, unless modified, 747-100s and -200s can be entered and exited from the ground if you're reasonably fit. At age 75 I could still do it, although I might groan a bit. We used that means on occasion, usually when the stairs had been pulled away, and we needed to get someone into the airplane and didn't want the delay of getting the stairs. Given these days of security concerns, I'm not comfortable with providing the details.
Very good answers but this image from @Qantas94Heavy comment link is self explanatory!
I see that big planes (for example B737, A319 etc and up) always need a staircase or a boarding tunnel in order for crew or passengers to enter the cabin since the position of the entry door is quite high (meters above the ground). What solutions are there if none of these options are available? (Except, obviously, for aircraft like DC-9's/MD-82 and 727's which had the rear entrance) How could... these aircraft do land. Obviously all the airports had stairs but since we cope with some strange situations over here, the question came into my mind. What is the alternative should something go wrong
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Air Force One is obviously a big deal. We close terminals and implement other seemingly crazy safeguards against terrorist attacks while the president is en-route to an airport. How does ATC protect the president whilst in the air? I have heard of TFRs for "VIP in the area" reasons — is that for AF1? I am guessing that the aircraft identification is blocked, but wouldn't they still need... in Sarasota, they saw us take off, they just stayed high and are following us at this point. We had no idea what the capabilities of the terrorists were at that point." Does having the transponder on just
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might not get to use the machine again, and you might spend some time in hospital, you would live to fly another day. I am assuming a reasonable place on dry land is available to finally come to rest...When I learned to fly helicopters, I of course spent significant time learning about and practicing autorotations. The CFI at my school, who had around 15,000 hrs (that's right, fifteen thousand!) said a few times that practice, knowledge and currency are vital — but as long as you got the entry right (following which you can fly to the ground) and executed at least a decent attempt
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organize such dance sequences to celebrate special festivals (since festivals are a huge part of Indian culture, plus publicity for the airline afterwards). Here is a YouTube video. One of the pilots can be seen recording the dance on his camera. SpiceJet specially planned this event, and had extra cabin crew on-board the flight as a precaution. Also, during the dance, one of the pilots... was that this was dangerous to flight operations, and could have resulted in disaster had there been any emergency on-board during the event. Also, that this could result in an unruly cabin
out in the question for some reason mostly it is "big" aircraft that gets this preferential treatment, but I am not 100% sure why. ...I enjoy tracking air traffic at my local KORD. I listen on LiveATC and use my private virtual radar setup to get "real-time" traffic info. I understand which instructions need to be read back... and that's why I don't hear reply, however on approach side much bigger distances are heard in my area) Thank you I did verify that indeed the aircraft that I don't hear read back from receives
Recently I was checking in to a flight and was asked if I'd like a window or aisle seat as usual and choose a window seat. I was then told that there are no more window seats available but I could get an aisle seat without someone sitting next to me and then just take that window seat. The plane was an ATR-72 so the rows were 2+2 seats. I know about weight distribution to the front/back but I couldn't come up for a good reason to do this. What could be the reason for not giving me that apparently free window seat right away?