Ports on a 737?
Posted by 546875674c6966650d0a@reddit | aviation | View on Reddit | 24 comments
Just going through some old photos cleaning up an external HDD, and found this picture I took getting on a Ryan Air 737. I've never noticed these before, but also I mostly board these in the US via a jet bridge, not by the stairs (which was something I didn't even know they had!).
What are these 'static ports' for the Captain and First Officer?
Flying-Toto@reddit
Satic pressure port. On 737 NG, there is 6 static pressure ports. 2 alternate and 4 for the cap and first officer.
The two alternate are used for standby altimeter and differential cabine pressure indicator.
The four mains are used by left and right ADIRUS throught AIR DATA MODULE
Marklar_RR@reddit
These stairs are called airstairs and not all 737s have them. It’s an optional equipment. Ryanair use them to reduce turnaround times and also airport fees.
airport-codes@reddit
I am a bot.
^(If you are the OP and this comment is inaccurate or unwanted, reply below with "bad bot" and it will be deleted.)
behindtheradar@reddit
bad bot
CPD1960@reddit
You can easily look this up on Google.
546875674c6966650d0a@reddit (OP)
Or, I can easily ask some people who know, and not get the tainted AI halucinations. When did "You should just google it?" become how everyone trades information now? I'd much rather participate in a forum of educated people who enjoy discussing the topic, and offering additional insight that Google might not even be aware to tell me. I miss the '98 internet.
DaeronTheDrunken@reddit
If basic research isn't worth your time, teaching isn't worth mine.
You could take some initiative and at least try to learn yourself before asking a question on a forum of educated people. The "what is it" question is answered in your picture.
I don't mind teaching, but I will ask "did you Google it" when asked a simple question to see if teaching is worth my time.
546875674c6966650d0a@reddit (OP)
Cool. You’re one of the RTFM crowd. You’re the assholes that make people not want to learn shit.
Bon-Bon-Boo@reddit
You didn’t even have to read the manual. You asked “What are these 'static ports' for the Captain and First Officer?” When in the photo right next to it, it clear as day says “Static Port” and “Captain”, “First Officer”.
DaeronTheDrunken@reddit
I would love it if people learned shit. You do that by reading the fucking manual, then asking questions - not the other way around.
DaeronTheDrunken@reddit
You're getting downvotes but you're right. The key phrase is in the picture. This doesn't deserve a thread.
DaeronTheDrunken@reddit
Let me Google that for you
Medajor@reddit
wikipedia page: https://en.wikipedia.org/wiki/Pitot%E2%80%93static_system?wprov=sfti1
flightwatcher45@reddit
Airflow next to skin very low, static. Probes poke into fast air, dynamic.
cyberentomology@reddit
That’s the USB charging port
n108bg@reddit
It's part of the pitotstatic system. Basically it provides the outside air pressure to the altimeter and VSI, and a static pressure for the airspeed indicator to compare against the pitot tube air pressure for airspeed.
petra_rain@reddit
A distinction between static and dynamic air pressure might help:
Static air pressure is the pressure exerted by air molecules that aren't moving, in other words the average of all their molecular velocities sums to zero.
Dynamic air pressure, or pitot tube air pressure, is air pressure dependent on flow speed. Since the flow biases the molecular velocities of the air in a specific direction, the static pressure of flowing air is actually lower than that of still air.
And the static pressure and dynamic pressure add up to the same amount; flowing air is static air that has simply exchanged the energy stored in its static pressure into dynamic pressure. The total energy in the system remains constant, unless added to or subtracted by an external force.
av8geek@reddit
USB-A
546875674c6966650d0a@reddit (OP)
Oh, that's why my SCSI ZIP drive wasn't connecting... duh.
rdm55@reddit
If it was only clearly labeled…
rkba260@reddit
Look at Mr Literate over here, bragging about being able to read
JJohnston015@reddit
Static ports let air into the pitot-static system for the instruments that use pressure to function - altimeter, airspeed, vertical speed. Some instruments use only the static, or still air pressure (altimeter), and some work in combination with the pitot tube, which gets ram air pressure (air packed into it by forward speed), like the airspeed indicator. Each flight crew member has a separate system for redundancy.
KG_advantage@reddit
They are static air pressure ports that feed on board computers for captain (left) and first officer (right).
546875674c6966650d0a@reddit (OP)
Awesome, thanks!