[commercialjets]

Regarding QDR and QDM. I've always remembered them like this:

QDR is used to take you fRom
QDM will take you home

It's easy to distinguish them from QTE and QUJ as they're the two for magnetic and both contain the letter D in their Q codes

[Paul_Sengupta]

Ah yes, you just have to be American. MagneDic.