B 747-400 Throttle Quadrant - motorized

[B747-400]

Hi all!

Perhaps you know my HP, and found that I'm working on my genuine TQ.

Luckily my TQ includes the motor, gear box etc. for the autothrottle. The motor has 24 pins to connect. Now I'm looking for details like voltage, pinout etc. Below there's a picture of the motor unit.

Anyone who can help?

As far as I know, Simulator Solutions are now working on a new SimStack board with interfacing capabilities to the ARINC 429 bus standard. Hopefully at the end I'm able to drive my thrust levers via PSX.

Thanks in advance and BR from Vienna!
Hans

[bernard S]

quite a task you have there with using real TQ  my two cents the   issue is not the pinpouts but the motor if I recall correctly its a AC motor   there is a chap on this forum that has a real TQ converted to DC power how he lined up the motor to fit is beyond me :-)  cool project all the same



 

[B747-400]

Well, lot of work has been done so far! More infos on my HP soon.

The motorization is a "nice to have" for me. But as everything is included, I would try my best to make it working with PSX.

BR Hans

[bernard S]

actullly you can get it to work with PSX :-)))))

[quid246]

Hi Bernard,

Please PM me your e-mail address, I think I might be able help you with some of the technical information you require.

[bernard S]

Hi Quid.. Its not me that requires the technical info but hans..what he needs is the relevant pages from the WDM  although me thinks it might be whole lot easier to convert the motor directly as its only one motor to DC power using the existing mounting plate !   and he would still not loose any of the functions he is wanting.. because the TQ is directly control by PSX and those are native to PSX just a Bondar card if he so chooses or FDS may have a solution as well  ( I think it depends on how much GUTS he has from below the floor related to the TQ) .. this way I am putting forward is painless but the its not my project :-).. In some ways this is a can or worms just wanting to pop out..correct me if I am wrong but is not the Auto TQ controlled by the FMC and then you need a matched set.. should this be the case the AC power is required and using the AC motor with the FMC makes sence if not then 1x dc power and x4 pots directly to PSX  usig this sort of set up with pots   

[B747-400]

Hi,

well, using another motor came into my mind as well. Best - if possible - would be the original one. It is mounted perfectly. Another motor needs some work to fit to the existing gearbox.

My TQ and all parts included are visible in enclosed pic. Below my sim is enough space, but I do not have the resolver assy.

Well, I will find a solution for this challange as well 

Thanks and BR
Hans

[bernard S]

I would suggest asking keeping the mounting plate the purple thing and locating a motor with a central shaft :-))) then going machine shop and have them make an adapter to fit .. way faster way cheaper ad way easier question now is how any rpm for the motor ;-)  .. I am not telling you how to suck eggs but its ( i think) an ac motor with the TQ this means you will need a 400hz converter and those are big bucks if going that route ac power you may as well go real all the way

or best would be this   get hold of tom at UAM and ask him for the connector with tail   problem solved :-)))

[B747-400]

Thanks for help and suggestions! Will call Tom asap - need to win the lottery tonight first ..
BR Hans

[bernard S]

na should be somewhere between 60 and 100 bucks

[quid246]

Hi Quid.. Its not me that requires the technical info but hans.

My apologies... see what happens when you read CB half awake!

Well I got Hans some info that will hopefully be of use. Looking forward to some results!

[bernard S]

where did ya find the schematic Quid ?   I looked in WDM and for life of me could not find the *ucker

[quid246]

If you danced enough with real Boeing as I have... you have to learn the Boeing language!

[bernard S]

ah   found it   

[rprather]

Not to hijack the thread, but HANS SCHUETZ?? Where have you been??? It's been years. And what happened to the 777??

Robert
777simulator.com

[B747-400]

Hi Robert,

yes, its me! Nice to read ya 

Well, I had lot of private issues .. first dad, later mom become very ill and finally passed away, and huge workload in business as well.

Project777 became B747-400.net. Now working on my 747-400 TQ, later the year will place my order with FDS!

Hope all is allright with you and your project?

BR from Vienna
Hans

[Aerosim Solutions]

Hi all,
I have done this A/T conversion on the real 747 nose section sim here in Perth. I dismantled the real Boeing A/T motor to get the drive shaft out of it, then I machined the splined axle to fit into an adapter sleeve on a 12VDC geared motor supplied by the owner. Then it was just a matter of making up a housing adapter plate/flange which was made from 12mm PVC sheet I think, it was a couple of years ago since I did it. I'll ask the owner if he has a picture of my conversion. His auto throttles are working with PSX.
Cheers Gwyn

[bernard S]

Hans.. since you have real TQ notice in there is flap sensor.. how you going to deal with that puppy 

[B747-400]

Hi all,

@Gwyn:
this sounds very interesting to me. Because doing this way of the conversion comes also in my mind as well. Need to sort out what way I will finally go ..
Would be great, if I could contact you if I have specific questions!
THX 

@Bernard
I simply removed the Boeing transducer and mounted a pot inside the mechanism. My next HP update will show the steps and the result with some step by step pictures.
I went this way, because I do not have the pinouts, and the conversion was very easy as well!

BR from Vienna
Hans

[B747-400]

Hi

as mentioned in previous posting, conversion of Flap control lever is done. Find an update here: http://www.b747-400.net/php/index.php?tab=t_pictures!

BR Hans

[737simAdelaide]

Awesome work. Amazing what you have done so far. Most detailed sim build I have seen.

[B747-400]

Hi

thanks .. but still lot work to do and long way to go!

BR
Hans

[bernard S]

now the flap is bloody clever way going in rather than out will send a pic of  it once back from shop    mine is waaaaaaaaaaaay over engineered

[Edoradar]

Pin 1 DC Ground
Pin 5 AC Ground
Pin 6 115VAC Servo Excitation (From Left FMC)
Pin 7 (Split Pin 16) Left FMC Servo Analog Output REV
Pin 10 (Split Pin 21) Right FMC Servo Analog Output FWD
Pin 11 (Split Pin 22) Right FMC Servo Analog Output REV
Pin 13 115VAC Autothrottle Servo Excitation (From CB)
Pin 14 AC Ground
Pin 15 (Split Pin 17) Left FMC Servo Analog Output FWD
Pin 16 (Split Pin 7) Left FMC Servo Analog Output REV
Pin 17 (Split Pin 15) Left FMC Servo Analog Output FWD
Pin 18 Tachometer Output Lo/Cosine
Pin 19 Tachometer Ouptut Hi/Sine
Pin 21 (Split Pin 10) Right FMC Servo Analog Output FWD
Pin 22 (Split Pin 11) Right FMC Servo Analog Output REV
Pin 23 AC Ground
Pin 24 115VAC Servo Excitation (From Right FMC)

[B747-400]

Hello Edoardo

thanks a lot for the pinouts, and compliments for your great setup. Very interesting site and videos you compiled! Awesome!

BR from Vienna
Hans