Jump to content
Sign in to follow this  
Grahm

Losing LNAV on the W90

Recommended Posts

My flight plan SEGS "OSELO 04N090W 06N090W 08N090W 10N090W 12N090W RAB UA770 NALDA UT21 CPE AXUDA UL207 IPSEV L207 SEAGL GILLL1" KIAH.

 

I guess the NGX doesn't like to fly the W090, I lose LNAV from the second waypoint all the way till I get to RAB. After losing LNAV (the light is still active and illuminated) it will turn left until i manually correct it. Jump back on course and some time goes by and I lose LNAV again. It keeps happening unitel I get to RAB.  Anyone duplicate or have an answer? I imagine it has something to do with the aircraft IRS system. Would this happen in real world as well?

 

 

Michael

Share this post


Link to post
Share on other sites

Kind of a strange routing.  Try 0490W 0690W... and see if that works. 

 

UZ512 and UL208 are sure a lot easier.  :-)

 

Billy Bluestar


I Earned My Spurs in Vietnam

Share this post


Link to post
Share on other sites

Try putting 04N090.01W in and see if that works.  If it does work, I have a good idea what the problem is.  :-)

 

the other bill   


I Earned My Spurs in Vietnam

Share this post


Link to post
Share on other sites

04N90 06N90 08N90 10N90 12N90 RAB

 

 

Kind of a strange routing.  Try 0490W 0690W... and see if that works. 

 

UZ512 and UL208 are sure a lot easier.  :-)

 

Billy Bluestar

 

 

0490W are waypoints too.

but they are in the Southern hemisphere.

Share this post


Link to post
Share on other sites

Try putting 04N090.01W in and see if that works.

Invalid Entry on the FMC

 

 

Michael Warren

Share this post


Link to post
Share on other sites

Full names in the forum.

 

Final warning.

Who is this warning directed toward Mr. Rodgers?

 

Billy Bluestar


I Earned My Spurs in Vietnam

Share this post


Link to post
Share on other sites

Irrelevant Blue star. It was probably me. I originally signed with my first name and edited it and put my last. Back to the task at hand..

Whats your idea of what could be happening and I couldn't get that decimal in the fmc under that format.

 

 

Michael Warren

Share this post


Link to post
Share on other sites

 

 


Who is this warning directed toward Mr. Rodgers?

 

Post 1, 3, 4 and (prior to the edit) 7.

 

 

 


I originally signed with my first name and edited it and put my last. Back to the task at hand..

 

Not only you, but thanks for the edit.

 

 

 


Whats your idea of what could be happening and I couldn't get that decimal in the fmc under that format.

 

The decimal format was wrong anyway. From what I recall, it should be:

N0400.0W09000.1; or

N04W090

 

The direction always precedes the number unless it's in the short 5 char format (which isn't actually a lat/lon format as much as it's a fake "fix" translated by the nav database).

 

The acceptable Boeing formats are in FCOMv2.


Kyle Rodgers

Share this post


Link to post
Share on other sites

Thank you sir.

 

Post 1, 3, 4 and (prior to the edit) 7.

 

 

 

 

Not only you, but thanks for the edit.

 

 

 

 

The decimal format was wrong anyway. From what I recall, it should be:

N0400.0W09000.1; or

N04W090

 

The direction always precedes the number unless it's in the short 5 char format (which isn't actually a lat/lon format as much as it's a fake "fix" translated by the nav database).

 

The acceptable Boeing formats are in FCOMv2.

Thank you sir!

I'm currently in the process of determining if I lose longitude navigation by using the format you've provided.

 

 

Michael Warren

Share this post


Link to post
Share on other sites

 

 


Can anyone explain why?

 

Try turning your computer on by clicking the CD eject button.

 

That may sound dumb, but think about it:

Computers are programmed to expect certain things to get certain actions. If you don't do what's expected, you won't get the action.


Kyle Rodgers

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Tom Allensworth,
    Founder of AVSIM Online


  • Flight Simulation's Premier Resource!

    AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. Thank you for your support!

    Click here for more information and to see all donations year to date.
×
×
  • Create New...