Originally Posted by
Fursty Ferret
The Airbus call is "positive climb" which I've always taken to mean VSI, altimeter, and radio altimeter all showing a climb.
Quite.
Much more comprehensive and much more specific.
The (many other companies, not just Boeing) 'positive rate' call infers only a reference to the VSI whch is, as any thinking pilot knows, only tells part of the story...
'Positive climb' encompasses all that is required.
Still, what matters is SOPs. The mouth music on your type is scripted, so stick to it!