Hi folks

 

I have a question for the real t7 pilots that are among us. What is the crosswind limitation for t7? I made quick takeoffs and landings in crosswind for fun but last time while a touch n go i felt like max rudder wasnt enough to put the nose on the centerline. The wind was 293/48 and runway track 352, the aircraft wa a fully pmdg t7 qatar cargo with 10t of fuel.

Did i exeed crosswind limitations or there is some thing wrong here ?

 

Here is my video, after the main gears touch down i applied full rudder to the right but the aircraft kept going straight untill the nose gear touches down.

http://www.youtube.com/watch?v=6T6CbAIHqIQ

According to a quick Google search, 38 kts manual and 25 kts autoland are the limits for crosswind on the 777.

I'd also work on your technique.  You need to drop those wings into the wind to correct for drift across the threshold if you're going to kick it straight before touchdown.  Get on the spoilers immediately as they'll unload the wings and put all the weight on the landing gear.  That'll help your control of the aircraft.  Get on reverse sooner too.  The faster you slow everything down, the easier your life is gonna be.

There is not an manufacturer-imposed crosswind limit for manual flight, that would be set by the operator (or not).

 

You can use a combination of methods if just rudder is not enough.

I'd also work on your technique.  You need to drop those wings into the wind to correct for drift across the threshold if you're going to kick it straight before touchdown.  Get on the spoilers immediately as they'll unload the wings and put all the weight on the landing gear.  That'll help your control of the aircraft.  Get on reverse sooner too.  The faster you slow everything down, the easier your life is gonna be.

i usually do like you said but that landing was a touch and go so touch down flaps 20, retract the spd brks than full power... also i kick the rudder before touch down to reduce the sideloads on the gears in this kind of crosswind landing with such drift angle.

 

There is not an manufacturer-imposed crosswind limit for manual flight, that would be set by the operator (or not).

 

You can use a combination of methods if just rudder is not enough.

you re right, i remember seein tk 777 having around 50 knts at narita in just planes series. (they ve gone around tought)

Since you are flying with Qatar I would stick with the limit of 38kts anything above that is not allowed

Since you are flying with Qatar I would stick with the limit of 38kts anything above that is not allowed

 

i like to push it to the limits

If you watch your rudder on your landing your plane is doing exactly what you are telling it to do by your rudder inputs ,Lower your L wing into the wind & just enough rudder to keep fuselage straight down RW & like others pointed out do every thing to slow & get weight on landing gear

Is it possible to provide thrust asymmetry as an extreme last resort? Possibly disabling the TAC 

Is it possible to provide thrust asymmetry as an extreme last resort? Possibly disabling the TAC 

 

That wouldn't be done.

Is your autorudder on or off?

Is it possible to provide thrust asymmetry as an extreme last resort? Possibly disabling the TAC

Why would you even want to? If the field is out of crosswind limits, don't start fumbling around... Divert!

Why would you even want to? If the field is out of crosswind limits, don't start fumbling around... Divert!

Just a theoretical question, jeez

Hi folks

I have a question for the real t7 pilots that are among us. What is the crosswind limitation for t7? I made quick takeoffs and landings in crosswind for fun but last time while a touch n go i felt like max rudder wasnt enough to put the nose on the centerline. The wind was 293/48 and runway track 352, the aircraft wa a fully pmdg t7 qatar cargo with 10t of fuel.

Did i exeed crosswind limitations or there is some thing wrong here ?

Here is my video, after the main gears touch down i applied full rudder to the right but the aircraft kept going straight untill the nose gear touches down.

 

Those 38Kt are max demonstarted cross wind by Boeing test pilots. Most of the times company SOP will use that as a hard limit. Beyond 38kt you are now becoming a test pilot, which in FSX you can do :-) Max cross wind limit can be reduced by company SOP when runways are wet or worse.

 

As for rudder, I find FSX rudder totally unrealisctic and unusable for a side slip xwind landing as well as engine failures :-( Decrabbing is better in FSX but also unrealisctic. So I have not even tried on the 777.

I asked about rudder in a general AVSIM thread once and others agreed about FSX and rudder being no good.

 

Maybe PMDG has been able to model rudder outside FSX to make it work better?

It appears to me that the plane is turning properly while still in the air.   At touchdown it is still a little misaligned.  After landing, you don't apply much rudder right away.  A second or so later you apply sharp rudder which appears to be causing the plane to skid on its main gear.  I think it is turning but the main gear is still skidding.  It's hard to tell how much it is actually turning (yawing).   It seems to me the plane wasn't very badly misaligned with the runway at touchdown -- the left main gear is near the runway center line and doesn't start moving fairly quickly to the left until you apply a lot of right rudder, which it looks like is causing the skid. So I am guessing sharp right rudder may be breaking the main gear loose.  You say that max rudder wasn't enough, but maybe it was too much.  When the nose wheel comes down it appears to act as a pivot point around which the main gear are still sliding.  Maybe try it again with less application of right rudder -- more gradual so the plane doesn't skid on its main gear. 

 

I will try this myself when I get a chance.

 

Thank you for posting this video.  It is very instructive for me regarding my own cross-wind technique!

 

Mike