OAKAPE AT 783 said
" ...1. PF calls "Going around - Flap 20 (B777)", hits TOGA & ensures that the thrust levers go forward - way forward, while pitching to the target pitch attitude or ensuring that the A/P is responding correctly
2. PNF selects the flap, verifies & calls "Positive climb(or rate)" ...
Therein seems to be a problem. Positive RATE and Positive CLIMB are NOT the same except for a very brief instant when starting the process ( pull back yoke or stick ).
Consider this hypothectical say at 10k feet/
A- Thrust is constant
B- Pilot rapidly pulls back yoke and holds it for several seconds
C- reaction of plane goes
1) start to climb- positive change in altitude = positive climb
2) Rate of climb starts as positive since prior rate of climb was zero at cruise level flight
3) in a short period ( seconds ? ) climb is still positive- plane goes UP
4) BUT absent anything else changing- ( holding yoke back ) the RATE of climb will decrease, and since NO energy( thrust) has been added, eventuually, the plane will lose speed and start stall.
Now at 10 K feet - it may take several seconds to reach stall, since speeds are higher, and more energy needs to be lost re climb to reach stall conditions- and there is usually time and altitude to recover.
BUT at low altitude ( re landing ) the times and allowable altitude loss after climb RATE GOES TO ZERO OR NEGATIVE IS VERY SHORT. EG the plane can still be climbing but at a slower and slower RATE
Thus the difference between positive Climb and Positive RATE ( change per unit time )becomes more than a matter of description