K Wennerholm

100 knot

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Hi! When I perform a take off, I am for sure doing something wrong. I reach only 100 knots in the end off the runwary. In FMC I have 99.1 % N1. The problem starts when I use the TO/GA button.  If I perform a unprogramed take off I get a safe take of. Yesterday over 300 people  die but I survived and run away from the police. Now I hide in the forest.

//Mr Dach Topple 

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33 minutes ago, wennerholm said:

Hi! When I perform a take off, I am for sure doing something wrong. I reach only 100 knots in the end off the runwary. In FMC I have 99.1 % N1. The problem starts when I use the TO/GA button.  If I perform a unprogramed take off I get a safe take of. Yesterday over 300 people  die but I survived and run away from the police. Now I hide in the forest.

//Mr Dach Topple 

Have you tried it without any hardware plugged in? Disconnect rudders, joystick, throttle etc. and just use mouse and keyboard.

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Yes, I have done a "clean" take off with the same deadly result. I have noticed that only one TO/GA paddle moves on the throttle. Is that ok?

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1 hour ago, wennerholm said:

Yes, I have done a "clean" take off with the same deadly result. I have noticed that only one TO/GA paddle moves on the throttle. Is that ok?

I'm not sure what you mean by 1 paddle. Try engaging TOGA using the screw on the MCP Autopilot panel. Ensure the throttles actually advance to full. 

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Two large buttons (paddles) in metal color between the throttle handle and the reverse thrust handle :-)

The throttles in the 777 only advance to half but my device Hotas Warthog throttles are full foward

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1 minute ago, wennerholm said:

Two large buttons (paddles) in metal color between the throttle handle and the reverse thrust handle :-) 

Providing both throttles move fully to the stops and TOGA is engaged, it makes no difference.

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5 minutes ago, wennerholm said:

Two large buttons (paddles) in metal color

Correct me if I am not mistaken, but I think you are referring to the fuel cut-off switches.

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If you place your hand on the throttle, you only need to stretch your forefinger to reach the two TO/GA buttoms.

 

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32 minutes ago, vc10man said:

Correct me if I am not mistaken, but I think you are referring to the fuel cut-off switches.

He's talking about the TO/GA switches.

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Nice one, Adrijan. As I do not use these switches and moreover am nowhere near my sim or PMDG reference matierial, I was just going off memory.

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If the PFD thrust readout shows "HOLD", the A/T may perceive any noise on the hardware throttle output as being a pilot-directed reduction in thrust to whatever position the hardware throttle may be in. What I do after invoking TOGA is to move up my hardware throttle to sync it with the designated take-off thrust as shown on the MFD display. This requires that the little blue throttle bug (not present in the real 777 of course) be displayed, something that can be selected in the PMDG actions menu.

I was having the same problem with the thrust dying on the T/O roll until I made that change. No doubt I will now find out that I'm doing all wrong, which would be a good thing too. ;)

PS The blue throttle bug is set on page 1/7 of the OPTIONS>SIMULATION section as "SHOW THRUST LEVER POS". Set that to ALWAYS or WHEN MOVING and then use it to sync your physical throttle with that in the VC on T/O. You could also disable A/T MANUAL OVERRIDE on page 2 of the same section, but that makes things harder on RTO, for example.

Edited by jrw4
fixed typos added PS

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If you are using FSUIPC move your FSUIPC.ini file to your desktop and try another takeoff. Sometimes it gets corrupt. If it doesn't solve the problem then you can just move it back to the modules folder. 

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I solved the problem of TOGA by repeatedly plugging in and disconnecting TO / GA while giving 100 % thrust.  Now it works properly☺

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Pushing the thrust levers to full will avoid the loss of thrust, but every takeoff will now done at 100% thrust, or something close to it.

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1 hour ago, wennerholm said:

I solved the problem of TOGA by repeatedly plugging in and disconnecting TO / GA while giving 100 % thrust.  Now it works properly☺

Not a solution.  Don't ignore suggestions such as the one about the fsuipc.ini file from Tom.  Did you try that.  You said you tried a clean takeoff... does that mean you disconnect your throttle control or you had flaps up?  The problem is most certainly either your hardware or your procedure and we are trying to help you discover what it is. You have to participate in this too.

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Thank's for helping me! I have no fsuipc. Clean take off=no hardware connection. I have solved the problem. I do not need to perform take off at 100 N1. Now I can do normal take off at flex.temp 60 C, as an example. I believe that I have done something wrong in my earlier process. One problem remains. I coming back to that later.

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6 hours ago, jrw4 said:

If the PFD thrust readout shows "HOLD", the A/T may perceive any noise on the hardware throttle output as being a pilot-directed reduction in thrust to whatever position the hardware throttle may be in. What I do after invoking TOGA is to move up my hardware throttle to sync it with the designated take-off thrust as shown on the MFD display. This requires that the little blue throttle bug (not present in the real 777 of course) be displayed, something that can be selected in the PMDG actions menu.

I was having the same problem with the thrust dying on the T/O roll until I made that change. No doubt I will now find out that I'm doing all wrong, which would be a good thing too. ;)

PS The blue throttle bug is set on page 1/7 of the OPTIONS>SIMULATION section as "SHOW THRUST LEVER POS". Set that to ALWAYS or WHEN MOVING and then use it to sync your physical throttle with that in the VC on T/O. You could also disable A/T MANUAL OVERRIDE on page 2 of the same section, but that makes things harder on RTO, for example.

Thanks!

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I would say that your throttles are overriding A/T in HOLD mode but given so little unclear information it is hard to tell what the problem is.

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I believe that I doing something wrong during take of but If my throttles are overriding A/T in HOLD mode, what can I do? 

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13 hours ago, wennerholm said:

I believe that I doing something wrong during take of but If my throttles are overriding A/T in HOLD mode, what can I do? 

Your throttles are supposed to override A/T in HOLD mode. Otherwise you wouldn't be able to reject takeoff for example. How do you set takeoff thrust? Do you advance throttles to 55% N1 and then engage TOGA? What do you do after that? Do you leave your throttles in the same position, move them fully forward or match them with the takeoff thrust? If your thrust returns to halfway, it sounds like that A/T sets takeoff thrust and at 80kts when it transfers to HOLD mode, your physical hardware is moving or sending a signal and that's why your thrust reverts back to match with your throttles.

The best way for takeoff is to set throttles to 55% N1, engage TOGA and push the throttles fully forward. You can also set them to match the takeoff thrust but if the lever has any loose, it may move and change the thrust.  Against a physical stop, its better to hold them from moving.

You said you don't have FSUIPC. I highly recommend it. But if you don't want to buy it, then recalibrate your throttles carefully and increase the null zone for throttles to avoid and intereference with the A/T in case you accidentally move them by 1 millimeter or they are loose.

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Hi, Joona! Many thanks! I'll test what you learned me. Can you speak Swedish? I am from Sweden and you are from Finland?

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9 hours ago, wennerholm said:

OK!

 

Please answer these questions so we can understand your takeoff procedure and help solving the issues:

 

21 hours ago, joona_ said:

How do you set takeoff thrust? Do you advance throttles to 55% N1 and then engage TOGA? What do you do after that? Do you leave your throttles in the same position, move them fully forward or match them with the takeoff thrust?

 

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1 minute ago, joona_ said:

Please answer these questions so we can understand your takeoff procedure and help solving the issues:

 

 

Hi, Jonna! I advance throttles to 55% N1 and then engage TO/GA. After that I move my throttle fully forward. N1 goes to red and  but I only get 60 knot. When I perform take off without TO/GA I get take off speed. 

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