This is a JetBlue A320:
I've always wondered what these are for, but could never find the answer. I'm guessing a few of them are for receiving information from satellites.
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2$\begingroup$ Labeled them in numbers so you can describe what each one of them is for. Yeah I finally figured out how to get images from google drawings onto my question :) $\endgroup$– EthanOct 2, 2015 at 0:51
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1 Answer
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They are the various communication and navigation antennas of the aircraft. This figure shows the location of antennas in A320, the type of aircraft in picture.
Source: pprune.org
Some antenna (the ones with *) are optional and the installation varies with customer. The communication antenna location in A320 can be seen in this image.
Image from airbus training course from airbus.altervista.org
And the navigation antenna location in this one:
Image from airbus training course from airbus.altervista.org
The dome (2 in the picture) is the radome for the wi-fi system introduced by Jetblue, dubbed Fly-Fi.
Source: nycaviation.com
So,
- 1,3,4 - VHF
- 2 - Wifi
- 6 - ELT
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8$\begingroup$ Why call it Fly-Wi when they could have easily called it Wi-Fly... $\endgroup$ Oct 2, 2015 at 5:09
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14$\begingroup$ @DanHulme - wi-fly is full of connotations negative for the bottom line. Rejected by marketing. $\endgroup$ Oct 2, 2015 at 7:18
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11$\begingroup$ "Wi-fly? Because now there's Fly-Fi, your Fly-Wi solution for WiFi while you fly." $\endgroup$ Oct 2, 2015 at 13:24
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4$\begingroup$ @ToddWilcox, don't give up your day job for a marketing career ;) $\endgroup$ Oct 2, 2015 at 14:38
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7$\begingroup$ I find it interesting that they list TCAS and GPS as optional... $\endgroup$– reirabOct 2, 2015 at 16:40