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Question about reverse levers


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Guest stevelep
Posted

I always ask me about the real function of the reverse leversin a 737 for example.When the throttles are in idle you can drag the reverse levers.Does these levers control directly the reverse power (the more you drag the more power you've)orWhen you drag the levers it switch the reverse and you've to push the throttle forward to give reverse power ?In summary do I put a switch or a potentiometer on my reverse levers ?Thank'sBOB

Guest jollive
Posted

With the throttles, You can manage the reverse power (more reverse power or not). You need to put a potentiometer, but if You use MSFS 200x, it doesn

Guest stevelep
Posted

My question was about real plane.How work really the throttle and reverse leveler ?To give more reverse power do you have to drag up more the reverse leveler ?BOB

Guest theporcupine
Posted

Here is a little diagram from a genuine B737 Air Operations Manual that should explain hoiw the system works on the real plane, which is what I think you are after. Hope the picture displays!http://forums.avsim.net/user_files/139507.jpgRegards, SimonThe Porcupineaka Simon Webbwww.desktopflying.co.uk (in severe need of update)Very slowely putting together a generic(ish) twin desktop unit.

Guest jollive
Posted

Here, you have a picture from a real forward/reverse thrust lever of B-727. The system is the same in 707/727/737/747 and other.Jose Olliver

Guest theporcupine
Posted

Here is the accompanying text I forgot to include with the diagram in the previous post:-The thrust reverser can be deployed when either radio altimeter senses less than 10 feet altitude. or when the air/ground safety sensor is in the ground mode. Movement of the reverse thrust levers is mechanically restricted until the forward thrust levers are in the idle position.When reverse thrust is selected, the isolation valvue opens, and the thrust reverser control valve moves to the deploy position, allowing hydraulic pressure to unlock and deploy the reverser system. An interlock mechanism restricts movement of the reverse thrust lever until the reverser sleeves have approached the deployed position. When either reverser sleeve moves from the stowed position, the amber REVERSER UNLOCKED light on the center instrument panel illuminates. As the thrust reaches the deployed position, the reverse thrust lever can be raised to detent No. 2. This position provides adequate reverse thrust for normal operations. When necessary, the reverse thrust lever can be pulled beyond detent No.2. providing maximum reverse thrust.Downward motion of the reverse thrust lever past detent No.1. commands the reverser to stow. Once the thrust reverser is commanded to stow, the control vavle moves to the stow position allowing hydraulic pressure to stow and lock the reverser sleeves. After the trust reverser is stowed, the isolation vavle closes.The REVERSER light, located on the aft overhead panel, illuminates when the thrust reverser is commanded to stow and extinguishes 10 seconds later when the isolation valve closes. Any time the REVERSER lights illuminates for more than approximately 12 seconds, a malfunction has occured, and the MASTER CAUTION and ENG system annunciator lights illuminate.The Porcupineaka Simon Webbwww.desktopflying.co.ukVery slowely putting together a generic twin desktop unit.

Guest Boeing722
Posted

jollive, thanks for posting those links. Do you have any other shots of that hardware?I'm considering another build of my 727 throttle quadrant. A couple of detail shots of the throttle and reverser levers closer to the knobs would help out. Front and side.Thanks.

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