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Lionking777

A few minor differences between the sim and the real aircraft

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Firstly, as a real world T7 pilot, I'd like to say what a fantastic job PMDG did with this simulation. Just like I did with the 744 a few years back, I find the PMDG T7 a great tool in preparing for my proficiency checks. Yes, they're that good!

Having said that, a few points came up whilst practicing scenarios.

 

1) although the fix page allows complex fixes to be created (eg DXB vor radial 300 at 3.2 DME would be DXB300/3.2), the created fix doesn't display as it should ie. DXB-01. Instead there is a blank field where the name of the fix should be.

 

2) the aircraft rate of deceleration with the speed brakes extended seems a little too slow compared to real life. Especially with the flaps extended, my real life experience is that she will slow down quite quickly!

 

3) the FUEL IMBALANCE checklist comes up much too soon after an engine out situation. At 500kg imbalance, the low tank pointer shows up correctly, but the FUEL IMBALANCE EICAS caution shouldn't be triggered that soon. The fuel flow during the engine out in take off was around 15000 kg/hr. this seems a bit high, perhaps?

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1) although the fix page allows complex fixes to be created (eg DXB vor radial 300 at 3.2 DME would be DXB300/3.2), the created fix doesn't display as it should ie. DXB-01. Instead there is a blank field where the name of the fix should be.

 

This SHOULD work. I just confirmed it and DXB01 displays (no dash, we have modeled this based on a software version that doesn't insert dashes),

However, this might be a bug that will prevent in some rare circumstances the display of the fix name (I think one of our beta testers mentioned this in the past by we couldn't reproduce it).

If you can give us some more details on when this happens it will help us to identify the problem.

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And since engine out scenarios were mentioned, I would add that the effects of an engine out, even with the TAC OFF  and the PFC DISC, are mild.  I can have the live engine at full thrust, the rudder trim in the center position, and there is no hint of yaw/roll....

 

Also tried it at V2, soon after takeoff, with those systems disconnected. It is more noticeable, but I didn't even have to use the rudder...

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JC,

 

That's a little odd. During engine out testing without TAC I definitely noticed the effect of assymetric thrust. Are all your FSX realism settings set as per the introduction PDF document?

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Sorry,

 

yes, there is pronnounced yaw at V2 after takeoff!!!... I don't know why / how but just noticed the rudder trim was not null in my test, even after disconnecting the TAC - it was probably set already and I wasn't aware of it ? :-/

 

Inflight the effect is mild though, and this time I made sure the TAC was off, I was in direct mode, and rudder trim was null. I don't know if this is realistic for the 777, at 6000' and 240 KIAS though, but I would say there should be yaw and bank towards the dead engine, a lot more noticeable than what I see. Can also be related to the bugged FSX "ball" physics (?)

 

It's also strange that with the TAC off, and at idle, if I switch EAI in one of the engines, both throttles advance to compensate (?) Maybe again this is just like the real thing, I really don't know...

 

Of course these are just minor / picky details in the miryad of features provided by this superb 777!!!!

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Thanks for the response mfrantz.

I had setup the fix and saved it with on of the panels that I frequently use. That is why this problem seems to come up everytime. Now, when I try to enter a complex fix, it works and displays correctly as you said!

 

Any answers to points 2 and especially 3? The FUEL IMBALANCE issue is very annoying and takes a lot away from the realism.

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