EMB 135 TR Operational Video

[n1ztb]

The first run is slow because they're bleeding the air out of the hydraulics. Otherwise is just slower than normal because a plane's hydraulic system is capable of much more flow than the test stand.

[esmifra26]

He is sow slow because the reverser doesn´t have enought hydraulic pressure to be faster. In the aircraft each engine or electrical hydraulic pumps will supply 3000 psi. It will be fast closing and opening.

[transdrole]

That's just a big Storm Trooper helmet.

[thibaulthalpern]

Why is the bottom flap so slow?

[AZNFlipy12]

its not on the plane yet

[thibaulthalpern]

I'm not sure I understand. The bottom flap is slow because it's not on the plane? I don't get it.

[AZNFlipy12]

the engine is not mounted on the airplane yet

[thibaulthalpern]

Is that why the bottom flap is slow, because it isn't mounted on a plane yet? Why would that be?

[AZNFlipy12]

they are still testing it

[matatan69]

Sometimes the hydraulic actuators are of different size to make them fit in the engine cowling. Also because ground test uses a less powerfull hydraulic pump than the engine driven pumps you may get this effect.

[rambothegreat18]

@thibaulthalpern its running on a test stand hydraulics. the aircraft hydraulics pump out a MUCH high GPM

[youngestpilotinGa]

@thibaulthalpern it just because normally a plane generates much more hydraulic pressure to make the reverse thrusters move than they can generate on the ground

[Avilator189]

@thibaulthalpern the top flap is being pulled by gravity and the lower flap has to work against it

[robertslade123]

@thibaulthalpern Because its hooked up to a less powerful test pump.

[k2477456]

@thibaulthalpern weight



[anzin74]

Pull of gravity maybe?

[sartozzi78]

I wonder to own an jet engine in my office :-)

[B757204]

nice! great view of the control panel!