Landing gear retraction test 1
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Uploader Comments (pierredz)
Top Comments
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ok just to clear thiese comments.... first
it is an A320!!
second of all, the guy at the middle under the A/C on the left side of the pic he is wearing the headset next time check out the pic before you make any comment.
the movement can be faster with hydr. rig but for test the flow of the oil is limited for safety reasons.
the sound at the back is the PTU (power transfer unit) works by mistake in this situation.
and lastly there is no pump at the APU
3 years ago 6
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Virgin America?
the engines are red dont go to harsh on me
im only 11
3 years ago 5
All Comments (25)
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only one site? lol
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Is that an A320??
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The gear is "jerking" because it has just been installed and still has air in the actuator.. the noise is the hyd pumps, Yes a ground power unit is supplying the power, and the engines have a gearbox to run hyd pumps. The drilling sound often heard is the Flap drives lowering the flaps.
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What is that 'drilling' sound? I heard it on an easyjet 737 a couple of years ago at Edinburgh before we left the stand and again after landing at CDG.
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sweet
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haha the PTU sounds pissed off.
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NICE
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is it normal for the landing gear to jerk lik that?
umahuma4 2 years ago
when using the electric hydraulic pump, yes, the pressure is 3000PSI, but fluid flow is less than that supplied by the Engines' pumps
pierredz 2 years ago
that's because it's running on hydraulic power using an electric pump, not using the engine's more powerful mechanical pump ;)
pierredz 5 years ago