Being a long time fan of all the PMDG Addon Aircraft, I am very excited at the upcoming release of the 737NGXand have been watching all the available Videos, photos & forums etc regarding this soon to become availableproduct. But i have a question that i don't think has been asked so far here and that is the new HUD system included with the aircraft.I think i pretty much understand most of the readings that are displayed ie. speed tapes, compass reading etc, but what's with that littlecircle with 2 little horizontal lines that boobs about inside the square. Check out PMDG's 737 NGX Preview - Day VFR 25knot Crosswind Short Field Landing Package at KCLMor PMDG 737 NGX Preview - Night VFR Departure and you will see what i meanlooking foward to your thoughts from you guysThanks

Please sign your name to your posts.That is the flight path vector (aka "total velocity vector" in military HUDs) - it shows exactly where the airplane is headed at any given moment. Put it on the runway touchdown zone during a landing and that's where the plane is going to meet the ground.

It's the Velocity Vector, it predicts in real time the direction of the movement of the airplane with the current momentum. If the energy state of the plane changes (more/less power, higher/lower pitch, more/less roll, etc) the predictions will be adjusted and you will see the vector move. A great tool for visual, low visability, approaches...EDIT: Sorry, Ryan was faster :)

About to conclude the above : operating principle : http://www.headupflight.net/principe/principe.htm or http://translate.google.com/translate?js=n&prev=_t&hl=fr&ie=UTF-8&layout=2&eotf=1&sl=fr&tl=en&u=http%3A%2F%2Fwww.headupflight.net%2Fprincipe%2Fprincipe.htmBye

Hi gents.I have another question regarding this: I have seen another circle in the flight path vector my question is: Wath does it mean?Thank you.Jorge Escobar.

Gee that's what i call quick anwnsers, Just looking at it i could see how it had something to do with where the aircraft would be at it's current speed and courseSo now i understand it, it's an Idiot's guide to landing an aircraft, or kind like cheating if you know what i meanPerfect for me though, Just point that circle at the touchdown zone and you're there.No but seriously this is something i can't wait to tryout, really excitedAm learning a lot from you guys :Applause:Thanks Michael Ward

I have another question regarding this: I have seen another circle in the flight path vector my question is: Wath does it mean?

This is a HUD version of the FD ( Flight Director) and it tells you where the flight path vector should be.

About to conclude the above : operating principle : http://www.headupflight.net/principe/principe.htm or http://translate.google.com/translate?js=n&prev=_t&hl=fr&ie=UTF-8&layout=2&eotf=1&sl=fr&tl=en&u=http%3A%2F%2Fwww.headupflight.net%2Fprincipe%2Fprincipe.htmBye

Thanks for this link! Very helpful and it is what I was just looking for!

Hi gents.I have another question regarding this: I have seen another circle in the flight path vector my question is: Wath does it mean?Thank you.Jorge Escobar.

That's how you follow flight director commands on the HUD - you maneuver the airplane so that the command circle is inside the flight path vector.

That's how you follow flight director commands on the HUD - you maneuver the airplane so that the command circle is inside the flight path vector.

Thanks for the answer.Jorge Escobar.

That's how you follow flight director commands on the HUD - you maneuver the airplane so that the command circle is inside the flight path vector.

Thanks you too. Ryan.Jorge Escobar.