Engine Startup and PTU sound (Only sound)

You can also hear the flaps coming out, recored on an Airbus A320 from Lufthansa from MAN-FRA.

Category:

Autos & Vehicles

Tags:

• PTU
• Power
• Transfer
• Unit
• barking
• flaps
• Airbus
• 320
• Frankfurt
• Manchester
• Hydraulic
• Startup
• Engine
• Lufthansa

[kelan930]

Do you know what that noise was that started at 0:28?

[michakra14]

@kelan930 That's what the vid actually is about - the PTU (Power Transfer Unit).

[ricardosoares2000]

This is a song for my ears ! I love it

Hugs from BRAZIL

[michakra14]

same to me :P

thanx guys

[TehMG]

The A320 has two separate hydraulic systems. The PTU (Power Transfer Unit) is a hydraulic motor-pump that transfers power from one system to the other should there be a pressure difference between the two, it does so without any sharing of fluid between the systems. The systems remain isolated.

Its purpose is to allow one system to operate from the other in the event that one system's engine-driven hydraulic pump isn't working.

[MegaPilotguy]

@TehMG I've heard that the PTU sometimes comes on during takeoff. Is this something that the pilots do or the plane does by itself?

[aadneds]

I love the deep startup sound and the HYD PTU :D

[Rwy02]

Always one fucking baby on every flight!!!

[richygambs321]

@CngDelta757 as i know IAE.

[YourNewsUk1]

love it

[noname826]

oh man, i know i have pissed off my neighbors when cranking this up with full bass on my sound system. that part at 1:15 when it sounds like the engines equalise and speed up is just another brilliant sound

[eugrizzi]

@TehMG Exactly! Between the Green (1st engine) and Yellow (2nd engine) hydraulic systems. Normally heard during pushback when the first engine is started (and the relative pump) and the second is starting.

[TheFSXclips]

@kelan930 Yes its THE PTU