80

Advantages of towbarless pushback. You don't have to store different tow-bars for different a/c types. This is especially good for ground handlers who handle different airlines with different aircraft types. Also handy for ad-hoc one-off flights. Removing need for tow-bars means one thing less to check daily, weekly, monthly, annually. Towing with a tow-bar ...


79

At uncontrolled airports, there is rarely enough traffic for signals to be needed, and pilots should (though are not required to) communicate with each other on CTAF—an option that cars do not have. In the air, if you're close enough to see a turn signal, you are way too close and need to immediately follow the collision avoidance procedure. More generally, ...


74

Yes. Human beings can get sucked into jet engines if they are close enough- this has happened multiple times in a number of aircraft ranging from A319 to A6E intruder. However, it happens only in rare cases- usually in case of miscommunication or a mistake, when safety procedures are not followed. The following image shows the safety hazard area for ...


64

To park a passenger plane with its tail towards the terminal has several disadvantages: it would require a pushback tractor (plus personnel) to do that. Thrust reversers in general are not meant for making the plane go backwards. If it was possible for the plane to go autonomously backwards, it would be extremely = too risky. you would also need the ...


62

Apart from appearing really unprofessional, the obvious drawback is a significantly higher workload, both for the pilot but especially for ATC. You're not the only aircraft moving around at the airport, and even if you are, the controller most likely has other things to do than focus entirely on you. As a pilot, you will also have a lower situational ...


54

Yes, you need an explicit instruction (not clearance) to taxi on any runway - and you got one! The controller told you to "taxi on [runway] 10" which is about as explicit as it gets. If he did not want you to taxi onto the runway, he would have explicitly told you to hold short of runway 10. Note that it doesn't really matter if the runway is "active" or ...


53

The "headset man" is a wing walker, and he is there for a reason - he is not just someone who needs a ride to where the aircraft is being pushed to. Essentially, he is an extra pair of eyes for the tow driver. He needs be able to see everything going on around the aircraft to avoid collisions with other aircraft or stationary objects. This task cannot be ...


52

what is the minimum or maximum weight that these engines can suck? Quite a lot, considering they can ingest ramp equipment... This is a JAL 747 ingesting a baggage container. Delta L-1011 doing the same.


52

I think the points raised in other answers are good, but they miss the essential difference. Cars choose from a discrete set of options, but planes do not. When you indicate left when driving you are communicating to other traffic that either you are taking the next left turn, or that you're changing lanes (depending on context). In some situations the exact ...


49

Flare (pyrotechnic) type According to Wikipedia and ynetnews.com, the flare system burns at low temperatures and doesn't pose a danger. Nonetheless Europe in 2006 objected to it and Switzerland threatened to ground El Al if such system was found on board. "If we catch Israeli planes fitted with this system in our airports, they will be grounded," ...


47

The taxiway is being used for parking. Specifically, parking of two MD-80s that have attracted press attention—The Australian: Clive Palmer’s $10m in tax-haven jets sitting idle: TWO 155-seat jets owned by Clive Palmer and branded with the name of his controversial and longtime loss-making company Mineralogy sit mothballed in a remot­e corner of ...


46

There's a good example which is the A319 LR which flies scientists down to Antartica. They utilize (very) little ground support, except for the stairs (they seem to have inbuilt ones in the front as well, although these are not used on site) and the trucks to offload the cargo. APU provides the power on the ground, and the aircraft has sufficient juice in ...


45

If your photo had only one aircraft pinned behind or between two others, there would be another possibility: it's a repair shop, and the owner of the pinned aircraft hasn't paid their bill. I've known repair shops which, in order to prevent sketchy or troublesome clients from simply taking their repaired airplane and flying away, trap it behind other ...


44

This is what happens when there are more planes to park than can fit on the apron. They are parked asymmetrically to fit as many aircraft as possible into the smallest area. The Parking Airports have various procedures for parking depending on how long the aircraft are expected to be on the ground and the overall anticipated demand for parking space. At peak ...


42

The aviation industry is already running at near-peak efficiency, performing crucial tasks simultaneously to ensure quick turn-around. Trying to speed up the boarding process by allowing entrance from both ends would be doable with a large amount of changes to the existing process, in both operations and infrastructure. However, the result would be ...


41

The airports that feature this parking orientation are of small size, with the apron (or part of it) very close to the runway. Taking Dortmund Airport as an example: When an aircraft of a certain size (for example Airbus A319, Boeing 737) reaches one of the parking positions 5-12, it is pushed backwards into its parking position. The engines are switched ...


40

Some B-29s had reversible pitch propellers. All the B-29s used for the Atomic bomb missions had reversible pitch propellers. Wikipedia B-29 Variants Moreover, engine packages changed; including the type of propellers and range of the variable pitch. A notable example were the eventual 65 airframes (up to 1947's end) for the Silverplate and successor-name ...


37

Here in the United States these are called blast fences. They protect whatever may be behind them from the direct effects of jet blast by directing the blast upwards.


37

A couple of my CFIs have asked me to help them park the airplane (in absence of a tow bar) when I was pushing the airplane by putting one hand on the hub and the other on the propeller near the hub, and them (the CFIs) pushing the tail down and nose wheel elevated. But according to AOPA, it is not a good thing: ... never push or pull on the prop blades. ...


36

This is a ground power unit (GPU) which supplies the aircraft with electricity while the generators or the auxiliary power unit (APU) are not running. This is important especially during boarding, when the cabin lighting needs to remain on for passengers to embark or disembark. The GPU is also used to start the APU, which in turn provides electricity to ...


36

It's happened before, both with civilian and military aircraft. This video was shot in 1991. Crews ready an A-6E attack aircraft for launch aboard Theodore Roosevelt (CVN-71) for a night sortie over Iraq during Operation Desert Storm when a fatigued green shirt walks in front of the port jet intake at full power. He is one of the few people who had this ...


35

How are aircraft aligned with these bridges They are not (but read on) Aircraft are aligned to a point on the concrete, not to the jetbridge(s). It is the jetbridge itself that carries out the final alignment to the aircraft door. Jetbridges are actually motor vehicles with wheels, tyres, motors and (often) steering. It just happens that their rear end ...


34

It is a temperature probe for the preconditioned air (PC air) unit. Bleed air is required in order to operate the air conditioning packs on an aircraft*. Thus, either an engine or the auxiliary power unit (APU) must remain running, burning jet fuel. PC air pumps heated or cooled air into the aircraft and allows the pilot to shut down the engines and APU ...


32

They did this to deal with an overflow of traffic at Anguilla (Clayton J. Lloyd ) International Airport during the 2013 holiday season. It is very fortunate that you properly cited your image. This makes it so that there is no need for speculation here. When you follow the citation train it brings you back to https://www.airliners.net/photo/Gulfstream-...


31

Those lights are used to show obstacles that may interfere with the aircraft's course, such as antennas, buildings, wind turbines, and they are mandatory. The name of those lights is Aircraft Warning Lights, and here is an article from Wikipedia about them.


30

They are specially designed apron jet bridges. It looks like the normal gates but required to transfer passenger by bus. A model shows how it runs (credit) :


30

Quite simple ― use a (special) towbar! Aircraft with such unique front wheels (like the Antonov An-225 Mriya and Lockheed C-5 Galaxy) carry their own towbar around, which is then attached to the tugs for movement. For example, here is the Galaxy's towbar: From left to right: 68th Airlift Squadon loadmasters, Senior Airman Katy Mackey, Master Sgt. Kevin ...


30

My one experience with this was in a 737-300 that had the battery charger die, and the battery depleted while in flight. The Battery Bus was still powered by TR3, but the Hot Battery Bus died (interestingly, not a scenario I'd ever seen in the simulator). We got to the gate & couldn't start the APU and couldn't connect ground power, so when we shut ...


29

They simply aren't necessary. Brake lights are on road vehicles because often they travel at relatively high speeds, and follow relatively close to one another. If a driver suddenly slows, the brake lights help provide a visual cue (which grabs the attention of other drivers, and is visible from quite a long distance) that the vehicle intends to slow or ...


28

It depends on a number of factors like: the aircraft size and variant the range required the aircraft load equipment available Ground crew proficiency ...among others things. This figure from the 737 Airport Planning document gives 9 minutes for the fueling time for a Boeing 737-600: Image from B737 Airplane characteristics for Airport Planning The ...


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