Spoiler arm auto-deployment

[vidarf]

Thanks a lot, you ¤%&/(&%¤&%/!!!! Forbanna molde-gauk!

[Michael Carter]

You do and you'll clean it up!

[Lambis777]

Sorry that i say this but the speedbrake lever jumps out from the down detent when the pilot forget the lever to the down position and WHEN deploy the reverse levers.



This happen only in the case that the lever is still in the down position when the aircraft is landing. (pilot mistake).

For the normal operation the pilot manualy place the lever to the arm position.

I ask and 737 and 777 pilots for this.

Lambis
Greece

[ivar hestnes]

Dont be sorry to post this buddy

Seems that there is always new stuff to learn. This subject is not so good described in the manuals. I got the same info from a reliable source aswell so sure you are right.

Description from my source below:

All 737NG takeoff's are done with the Speedbrake lever in the "DOWN"
position. The detent in the "DOWN" position prevents accidental deployment of the Spoilers during takeoff. If the one of the thrust levers is moved to "Reverse" then the mechanical linkage pushes up the Speedbrake lever, (so the tab clears the detent) and the auto speedbrake actuator moves the Speedbrake lever to the up position.

If the aircraft has not reached the wheel spinup speed and one of the thrust levers is moved to "Reverse" then the mechanical linkage pushes up the Speedbrake lever, BUT the pilot must move the Speedbrake lever to the up position.

Thanks for posting Lambis

[Lambis777]

Somewhere in my hard drive i have a scetch from the maintanence manual that show this device that jump out the lever from the down position.

it will be very userfull for those who want to make the speedbrake lever as the real speedbrake lever.

tommorow i will try to search this file.
Give me some time

Lambis
Greece

[vidarf]

THIS IS AWESOME! Thank you SO MUCH, folks! This will increase the level of realism. Sadly, it will also increase the workload. Oh, well....

Don't you just love this hobby and its level of complexity? Allways something to bend your brain around!

[Lambis777]

Hi Again

I attach the scetch that show the mechanism that push out the lever from the down detend.

Lambis
Greece

[dnoize]

what aircraft is that from ? (levers dont look like 737).

I have checked with my real 200 throttle and it has no provision whatsoever to lift the lever. But ofcourse its from a 200 so everything can be different.

I've just checked maintanance manuals of a 300/400/500 and i cant find any reference there.

Next thursday i will be in a NG flightdeck. Will check with the pilot.

There are so many versions. Until recently i had never heard of a NG without autothrottle either, but i just recently found out that those exist too ! i had never heard of it before...

Thanks for the drawing lambis. We learn every day new things in this hobby

Stef

[Lambis777]

I think are from 767. I seen familiar mechanism and for 777.
The pilot 737 that i ask flys NG but i don`t ask him if all the models or the old models have this mechanism.

Stef your visit next week in the NG flightdeck they will give us the answer.

I hope you guys understand my bad English.

Lambis
Greece

[dnoize]

Just checked one of my other manuals and scanned this page.

Check the third paragraph on the right.

Spoilers do extend automatically after rejected take off, when reverse levers are pulled.
Since the "before take off" orders the pilots to have the speedbrake lever in the down detend i have to assume the lever rises automaticallym.

Will check next thursday and report when i return.

Stef