A330 oleo-pneumatic shock absorber landing gear system

Hello folks!

Introduction

I’m making this request to bring attention to the Airbus A330 landing gear. The Airbus A330 landing gear that we currently have in-game is very easy to land hardly on.


Explanation

In real life, the Airbus A330 family has a landing gear hydraulic system, referred to as the oleo-pneumatic landing gear system.
The overall effect of this system is the fact that it adds cushion, and braking to the decent of the landing gear bogie after touchdown.


Oleo-pneumatic system

This system has 3 main components to it.

  • Oleo Strut: The Oleo Strut is the main shaft of the landing gear system that absorbs the shock after touchdown. It’s consists of a telescopic cylinder filled with hydraulic fluid and compressed nitrogen.

  • The hydraulic fluid (Oleo): This hydraulic fluid slows the piston inside the strut, controlling the rate at which the strut compresses when the aircraft lands.

  • Compressed Gas (Pneumatic): The gas (nitrogen) is held in the upper section of the strut and acts like a spring, extremely slowing the decent rate of the aircraft when the first pair of wheels on the bogie touchdown. As the bogie slowly descends down, the gas is compressed more and more, until a valve lets out controlled amounts of gas, slowly bringing the landing gear bogie to a rest on the runway.


Overview of how the Oleo-pneumatic system works

1. Touchdown: When the A330 touches down on the runway, the aircraft’s weight and the force from the decent cause the the landing gear strut to compress. The piston in the Oleo strut moves upward into the tube.

2. Absorption phase: As the piston moves into the tube, the hydraulic fluid inside the strut is forced into small holes in the piston. This restricts the flow of fluid, creating resistance, and slows down the compression. As this is happening, the compressed gas in the upper part of the strut is compressed further, acting like a cushion to absorb the shock.

3. Damping phase: As the strut compresses, the hydraulic fluid absorbs much of the kinetic energy from the landing, and the compressed gas provides additional force to cushion the decent. These two components work together to to slow the hard touchdown we see in Infinite Flight.

4. Decompression/control: After the initial compression, the strut slowly extends back as the hydraulic fluid and gas return to their normal state. The gas returns to its normal state via a controlled release valve. This is important because it prevents the A330 from bouncing back into the air after the initial touchdown.


Real-world affect

In real life, the Oleo-pneumatic system on the A330 family is so effective that pilots commonly achieve what the aviation community refers to as “butter” landings.


Conclusion

I hope this helped educate you either in aviation, or just a special hydraulic system on an engineering marvel!
-I hope I got your vote to make your A330 landings more enjoyable!
Thanks for stopping by, God bless yall😁.

I see what youre saying, but this is a casual flying sim. I dont see this adding any sort of significant value to the sim but i like where your head is at.

3 Likes

Basically what im saying is, i doubt a majority of users would even notice that this feature is there, thus, not really adding significant value to what we are doing if that makes sense

No, not at all.

Aircraft like the 777 and A380 has main gear steering, not sure why this gear system on the A330 shouldnt come.

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Im not here to argue. I’ve stated my reason and used a positive outlook. Take it as you wish. Have the day you deserve.

I understand what you are saying. I brought this topic upon the IFC to bring awareness to this, as it is not that realistic, as this is a irl A330 system. Recently I’ve realized Infinite Flight is trying to juice all the realism they can get, while maintaining good device performance.

This future would just be satisfactory, while also providing extra realism. On other IF hosted servers and forums, specifically Discord, I have seen some A330 landing gear complaints. And me myself is a realism freak, and this future would be very nice to see, as I am not the happiest after slamming down onto the runway after a nice flight.

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I’m out of votes but I’m onboard with this.

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You got my vote!

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Thank you my friend.

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I’d like to see more butter A330 landings in infinite flight , voted!!

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Right on! Thanks yall🙏🏼

Here is a great video of this landing gear system working!
-If this system is added in IF your landing will look like this👀

To be honest, a hard A330 landing shows it off much better.

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Yeah you’re right! I want this landing gear system in game so baddddd

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I really want them to rework the -200 so we can get the Hawaiian airlines livery😩