FMS in B744

[Uncle Wiggily]

What is the most widely used make and model of FMS in the B744? What is the most common navigation system in the B747 Classic?

Thanks.

[IFixPlanes]

You know the PPRuNe Forum Rules (http://www.pprune.org/faq.php?faq=pprune_rules#faq_pprune_rules_rules)?
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No multiple posting. (Duplicate posts in more then one forum)
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But maybe you find a answer here (http://www.pprune.org/engineers-technicians/421795-fms-b747.html).

[Intruder]

The Litton LTN-92 is common in the Classic; don't know if it is the "most" common...

[eckhard]

What is the most widely used make and model of FMS in the B744?

Unless a pilot has flown for multiple 744 operators, how would they know?

Perhaps a Boeing engineer can answer?

All we can tell you is what FMS is fitted to the 744 that we individually fly: In my case Smiths (I think). I don't remember seeing a 'maker's name' on it anywhere, but it has a monochrome green display on the CDU. Only has 64K memory apparently!

[Intruder]

Ours are Honeywells.