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Guest allistah

See inside real 737 throttle levers?

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I've just started my 737 cockpit and have been thinking about the throttle pedistal. I've looked at numerous pictures of real 737 throttle pedistals and I always wonder how they have the insides of the throttle levers set up for the reverse thrusters. Now I know that I can figure out my own way probably but I'm really curious to know how they do it in the real thing.Does anyone have any pictures of the insides of those so I can see how/what the reverse thrusters do inside when the levers are pulled? From the looks of the pictures it doesn't look like theres much room for leverage or anything so I'm wondering if its a small gear in there or something.At any rate, if anyone had any pics or can take some I sure would appreciate it.Thanks,-Allistah

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"How the stuff looks like inside in real" ... that's a tricky one.I have no idea how to get it. However, for my Fokker50 I am "lucky" in a way that there is an issue with them. Resulting in 2 accidents. In the FAA report of the Luxair F50 crash a year ago, there is a diagram copied from either a manual or some sort of Fokker blueprint.This little image gives me some look on how it works though the img is not detailed at all. But now I can figure it out. If I'll ever rebuild the inside of my power lever quad, for sure I'll use this diagram.For you it's a tricky one. One might try to contact something like "Sabena Technics" or whichever technics works on your type of plane and ask them more detailes or a little hand drawn scetch. Very little chance that you get a good answer but it is worth the shot. Otherwise, try contacting one of the folks using a real quad stripped from a teardown a/c.

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I should have my 737 throttles hopefully within a few weeks or so.. When i get them i will post a few pics of the insides to try and help you. Mikewww.737bbj2sim.com

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That would be very useful for those of us also doing 737 sims... Would this be made public or is it going to be issued upon request?

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Not sure but think it's quite usefull for other Boeing builders as well :)I think this kind of technology probably is not much different over the =/= planes.Even my F50 is very different for sure, I'm still very interested in seeing pictures of how they work.

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Very possible that they work on the same principles, having a sliding arm that locks the throttle to a smaller travel whilst engaging the reverse cowlings. Worth seeing how the professionals do it!

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I'll do my best to post the pics you guys are looking for. Most likely i'll just put them on my webpage unless some of you want them in a different format. I also plan on taking whatever measurments i can in order to help other builders who are attempting to build their own 737 throttle quadrants. I remember when i was attempting to build my own throttle quadrant but could never find any good dimensions to help build it correctly so i said forget it and just bought a real one. lol Hopefully it will be here soon and the pics will follow!Mikewww.737bbj2sim.com

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Wow, thanks! Very kind of your to take yours apart and take some pictures and meansurements for us!Can't wait to see them! Thanks again!-Allistah

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> I'll do my best to post the pics you guys are looking for.I am looking forward for it.Thank you very much :)

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Hey, I'm curious... How much was that 737 throttle pedistal anyways? And where did you get it?Thanks,Allistah

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Focca la bindella!!!!!!!sorry for the italian exclamation, haven't a translation for it :(Now Philippe... just come out with one of your cad miracles and make us happy :D

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Erm... Yes we do :(The problem is both with lack of dimensions and restrictions on parts viewing. You'll have to fill in the gaps if you want to model it. But at least you'll have a head start, which is more than the Boeing designers had to start with!

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Can't understand any of it, sorry. The question is .. the images on the right top .. is that top view or side view ?And all those names of components .. where do they go .. what is connected to what ? :/

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Looks like a top view. If you rotate it anti-clockwise 90 degrees, it should start making sense.Here's the challenge :( Most of it looks pretty straight-forward to me (It would do, I'm a designer!). If you want I can have a good go over it later and email/post my ideas?

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Thought of looking at it that way. But what is the "control stand web" ? And is the the "control link" that is connecte to the reverse levers ? What moves and what is fixed, and what moves with what ?Pls if you can explain it a bit, and if I manage to understand I could make this in 3D Max, no problem.

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The control stand web is similar to that used with the flaps lever. It's part of the throttle housing, and has a hole where the lock pawl engages when reverse thrust is engaged, preventing the main thrust from being moved. The control link is the lever that is attached to the reverse thrust, so when this is moved it locks the main throttles. If, however, the main throttles are forward, the lock pawl cannot engage and thus blocks the control link, preventing the use of reverse thrustAny clearer?

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yap completely.question now is .. how usefull is it for people to make their quad this complex ?either way, this topic made me make a 3D model of the image I have from F50 power levers. as said before I found it in a crash report from the Luxair 50.http://users.skynet.be/plipke/PF50HC/images/PowerLevers.wmvfor those interested :)in the movie you can see how the lever "gets stuck" in the 2 detents (one on the right is ground idle, one on the left is TO-power .. so unlike in real, here I go beyond TO-power). Then the detent in the middle is flight idle which needs input from the "ground range selector" levers as to get beyond this point when moving towards ground range.

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