Boeing 737NG simulator seeking pilot...

[alphatango]

I am 15 km east from Quebec city...
Al

[alphatango]

As promise and just for fun, here are 2 new photos.
For sure the pedestal is not complete but it is a good begining
Al

[Intentional Left Bank]

Amazing!

[alphatango]

Despite the fact that there are still many improvements to bring to the simulator, this one is now fully functional.
So more and more often I have the opportunity to fly it and sometimes in real time on the net. This means that the flight is with air traffic control provided by real people using true techniques and frequencies. All this of course adds great complexity and realism to the flight ...
If you want to read a little story from a friend who just fly fairly regularly with me just go there... This is in french!
http://jjpilote.blogspot.com/2010/02/en ... -reel.html

[alphatango]

Hi all,
This is a long time I am not back here with interrogations...
But now I am back with many questions...
Daniel, witch is completing the overhead soft for the 737-800NG need some specific precisions... So here are those questions that maybe someone could answer.
1- The APU is running with both gens ''ON''. If I turn the battery switch on ''OFF'position, will the APU still continue running or will it stop?
2- If the APU stops, when I will restart the APU will the GENS be in the ''ON'' position or will I have to turn it ''ON'' manually again?
3- If I try to start the APU with the AFT1 fuel pump in the ''OFF'' position (cross feed closed) will the APU start?
4- Engines running and PACKS ''OFF''... If I push both throttle on maximum power, what will be the max PSI value?
5- In this situation if I turn both PACKS ''ON'' what will be this max PSI value? (or % of lost of power)
Once more many thanks for your help very much appreciated...

[alphatango]

Nothing yet???
I am very surprised! This is the first time... or this is too technical maybe? Maybe this is more maintainance questions...!

[Pajock]

I think I can only answer two of these.

1) The APU will shut down if you turn the battery switch off.
2) The APU will start with no fuel pumps on.
ok maybe three.

3) I believe the Gens will stay on-line after shutting the battery off with engine running.

As for the PSI stuff, no idea. The max is 9.1 though.

Hope that helps.

[Bluetooth]

Hi Alpha
I know that if you turn off the battery switch with the APU running it will shut down immediately.

If the AC transfer buses were being powered by the generators at the time you shutdown the APU, they would remain that way and when you started the APU again it would simply start and be available to use but not connected to any buses until selected. If the AC transfer buses were being powered by the APU when you turned off the battery switch, if you are in the air there is a one time automatic function that will connect both generators to the AC Transfer buses preventing a loss of AC power. I am not sure if that same automatic function is available with the aircraft on the ground or if you would lose all AC power to the aircraft by shutting down the APU.

Any time you start the APU, it is just on and does not connect to the AC buses until you select it on buses.

Although it is good practice to run a fuel pump to help supply fuel to the APU, it does have a pump on it that will draw fuel for the APU.

If you are referring to duct pressure downstream of the packs with the thrust levers full open,and the packs 'off' my guess is zero and for your last question I don't know.....but I will try and find out for sure about question 4 and 5 and if I do I will let you know.

[alphatango]

Thank you to both of you Pajock and Bluetooth
Sorry for my late to be back...
Pajock, what do you mean by "ok maybe three." I do not understand.
Still waiting for the remaining questions... 4 and 5 if anyone can help.
Thank you
Alain

[Bluetooth]

I think he meant, OK maybe he could answer 3 questions...... At full thrust (brakes applied) with the packs turned off the duct pressure gage on the AC/press panel indicates between 40 and 50 PSI. I forgot what question 5 was so I'll have to get back to you on that.

[alphatango]

Yes Bluetooth, you'r right with "maybe three" I did not catched!
I will be waiting for your new search about last question...
Many thanks,
Alain

[alphatango]

Hello all...!
A new question...
This is about "Speed brake"
On the landing configuration with the SB in the armed position, when the aircraft touchs down, does this SP raise up once the aircraft touch down or only when the pilot reverses the throttle?
Also, this SB returns in the down position when the reversers return to the off position or when the throttle 1 or 2 are pushed a litltle bit forward...?
Very basic question you will say but very difficult for me to know....
Many thanks,
Alain

[highlander]

The SB handle, when in the armed postion, will move to the extend position once the main wheels touch down. The use of reverse does not effect them.

The speed brakes DO NOT EVER stow automatically. They must be returned to the retract position manually.

Note: the SB can also be used to disengage the autobrake if the autobrake is engaged. (this is not the prefered way- but it can work if you cannot override the system with manual braking.

[Sulako]

alphatango, I just want to say your simulator is absolutely AMAZING! You have done an incredible job, good work!

[alphatango]

Thank you for your kind words...
Alain

[Intentional Left Bank]

To expand on what highlander stated, my understanding is that the flight spoilers deploy when any main wheel touches down, and the ground spoilers deploy when the right main touches down--if the speed brake is armed and RADALT is <10 ft. If the speed brake is not armed, all of the spoilers deploy fully when the reversers are deployed and wheel spin-up occurs.

The speed brake can be stowed automatically by advancing the thrust levers, although it is preferred that they be stowed manually. I think this safety feature is implemented for the bolter scenario, like the 727 incident in Hamilton.

[Amateur Turbines]

I hope that you don't mind but I'm referring this to another site Pprune.org under the tech log link hope that you receive many answers from those international blokes.

Here is the link

http://www.pprune.org/showthread.php?p= ... ost5610944

[Donald]

NG has no auto-retract on the speed brakes??

[alphatango]

ILB,
Thank you for those precisions, ...that makes me ask you an other question.
How the SB can be deployed if they are not armed, because there is a notch that keep them in the down position? I cannot figure how they may deploy if not in the armed position!

Amateur Turbine. No I do not ming for that. Some times ago I tried to put my post there but they refused me I think because they beleive it was for a commercial purpose...!
But anyway I found that forum that is the best for me

Finally thank you Donald for your comment also,
Alain

[xl3*av8r]

Saw the link here from PPrune.
Not sure if they are what you need, but what about Xplane http://www.x-plane.com/index_pro.html, they run some FAA approved small sim programs, so they have external hardware links, maybe they are more user friendly?
In any case great stuff, fabrication and software development, great mix, well done!!!