A320 no speep entry on secondary
Scenario: You have programmed the MCDU in the A320 from x to y. Now you decide to program the Secondary for the immediate return. Unfortunately you get the message “Flight Plan Full”. So you decide to create a Flight Plan from x to x. You enter the destination data but leave the performance on the secondary completely empty.
Question: What will happen after take off, when you activate the secondary? Will it copy the performance from the primary?
Remark: Please only post if you had a chance to try this in the Sim or with a link where to find this in the FCOM. I tried this a couple of times with a FMGS trainer but, the speed of the aircraft drops to 0 which I don’t think will actually happen in the aircraft.
Thank you very much for your help