'One click on the CAB bug please'?
I'm a B733 F/O and I'm seeing this called a lot by some of the newer captains on our fleet, in some cases being called for just as the gear comes up. What's the deal here?
As you know, pressing TOGA brings up the N1 and TOGA FMAs and the autothrottle goes to TOGA while pitch is controlled to target CAB+20 (V2+15-25). One click on the CAB bug resets it to 15kts higher than originally set, but I haven't seen FD commands in response to this increase in target speed (shouldn't we be seeing V2+30-40 in this case?)
So all in all, I can't see what we're achieving here. Maybe I've missed something. Any takers?