The PTU is activated when one of the hydraulics systems drops to 500 psi. The Power Transfer Unit then activates, allowing for the system to go back to 3000 psi. The sound of it getting, in comparison to the sound of a dog, a longer bark, is because as the engines are shut down the pressure provided by them lessens. Vise vera during start up
The flight attendant says, "Flight attendants, disarm your doors for arrival and cross check." Cross-check refers to making sure the girt bars (the device that activates the emergency slide when the doors are open) are deactivated before opening the doors.
That is truly great sound quality. I've only been on a 321 (ACA) once, and i was younger so I don't really remember it but I would love to fly on one again
EXCELLENT VIDEO MAN 5/5
97alcons 2 months ago
The PTU is activated when one of the hydraulics systems drops to 500 psi. The Power Transfer Unit then activates, allowing for the system to go back to 3000 psi. The sound of it getting, in comparison to the sound of a dog, a longer bark, is because as the engines are shut down the pressure provided by them lessens. Vise vera during start up
LegendxHD 10 months ago
This video has amazing engine sound!! The CFM56-5B is a nice sounding engine. Nice vid! :D
Canadian737 1 year ago
nice video..i like the ptu sound its look like dog or saw sound....awesome...thanks
sudanair700 1 year ago
ok first of all Ottawa's code is not YYZ , yyz is toronto the airport code for Ottawa is CYOW
MrSheen134 1 year ago
This has been flagged as spam show
Great quality video!
mke312 2 years ago
just as well the pilots don't here that ptu sound
Lunarlaserranging 2 years ago
@Lunarlaserranging what is a ptu
Boeing757luvr 1 year ago
what is the sound that starts at: 8:27 ?
qwertyguy76 2 years ago
Awesome!
aircanada76 2 years ago
sexiest sounds EVER!!!thanx for this video
joey21tribiani 2 years ago
What does cross-check mean and what does the flight attendant say before the end
MrCars 2 years ago
The flight attendant says, "Flight attendants, disarm your doors for arrival and cross check." Cross-check refers to making sure the girt bars (the device that activates the emergency slide when the doors are open) are deactivated before opening the doors.
garbageman82 2 years ago
That is truly great sound quality. I've only been on a 321 (ACA) once, and i was younger so I don't really remember it but I would love to fly on one again
Billster8724 2 years ago
Best vid ever i felt like i was there good job filming nice to see so many sounds that a321 makes! 5* and fav
MrCars 2 years ago
Please I wan't to know what's the sound in 9:48
BlackTwister999 2 years ago
thats the power transfer unit PTU it makes that barking sound when one engine is on or when they shut it down. It is running a test
italianluvah83 2 years ago
That would be the APU at the rear of the plane.
-Cheers.
SpiritA350 2 years ago
love the sound...lol but whats the high pitched sound at 7:50? Sounds like the plane saw the gate and freaked out! LOL is this a cfm engine?
italianluvah83 2 years ago
I think that that's the electric yellow system pump.
atav 2 years ago
Ottawa YYZ to Toronto YYZ? Don't you mean CYOW to CYYZ? Anyway nice video the A321 is a great aircraft!
haphadon 3 years ago
Yes, my mistake, it should have said YOW.
ddenisen 3 years ago
No worries just wanted to let you know :) Great video!
haphadon 3 years ago
what do I need to record such good quality is this? can someone please reply thanks
darmitage100 2 years ago
i love the wingflex :)
fsimpro 3 years ago 2