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.
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.
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.
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 compartment
I believe they have to use an aircraft pump during the swing although the service manual could allow for an external cart. There is almost certainly an FAA SB on this for that model. They probably use the pump off the APU.
yes, and if they really used the fans pump, everyone would be flying away from the thrust or getting killed by the force sucking them in the fan blades...
only one site? lol
gummel82 4 months ago
Is that an A320??
jorasave 1 year ago
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.
chriscbr600rr77 2 years ago
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.
rednalgne 2 years ago
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
sweet
xReventonx 2 years ago
haha the PTU sounds pissed off.
ssmows6 3 years ago
NICE
pankaj5656 3 years ago
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
Dimitrius002 3 years ago 6
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 compartment
Dimitrius002 3 years ago 3
or Embraer maybe.
DoctorDreh1988 3 years ago
Airbus A319 or 320.
DoctorDreh1988 3 years ago
it will run much faster wen drivven by the EDP
luuko656 4 years ago
whose on the Ground Headset for Communication.
HAWK21M 4 years ago
that retraction is done using the external hydraulic rig...it can never be done with the engine driven pump, the aircraft is on jacks!
muzanz 4 years ago
I believe they have to use an aircraft pump during the swing although the service manual could allow for an external cart. There is almost certainly an FAA SB on this for that model. They probably use the pump off the APU.
RobertGary1 4 years ago
This is most likely an airbus A-320 or 321. I wander if that sound in the background is the hydraulic cart
booman606 4 years ago
Check mine....with a MD-82...just enter in the searchwindow: ALM Technical Department...Thanks in advance...
AlexAlberto 4 years ago
yes, and if they really used the fans pump, everyone would be flying away from the thrust or getting killed by the force sucking them in the fan blades...
motorex259 4 years ago
kinda plane is that anyway?
6V92TA 4 years ago
looks like an airbus
duk309 4 years ago
Bit small for an airbus no?
Would be one of those embraer 170 aircraft.
An A320's wings are over 2 metres above the ground with the gear extended, this thing is not.
blampa 3 years ago
It's an A320
pierredz 3 years ago 2
Virgin America?
the engines are red dont go to harsh on me
im only 11
EnglandDudeGuy11 3 years ago 5
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
pretty slow siwng on the gear
5yKQU 5 years ago