Narrow (I think I can guess who you fly for by your T/O brief)
Why have you all missed the standby airspeed indicator? Why did you bug this before departure in the first place?
Why is there a V1? Therefore why, if indeed this is the case, do you want to continue boyond V1 if a fault dictates (as per yer SOPs[maybe]) that you would reject <V1 in the event of . . .?
Why not scrape the rubber and burn the paint off and stop?
If continuing (as you are the Captain) then back to my first question, the standby airspeed indicator - thats what it is there for. Will, the FMGS airspeed calcs still give accurate enroute ETAs etc., etc? I mean, will you still get there?
Also, and with prescence of mind presently flying a coffee cup on my desk, why brief `this` and then go and do `that`?
Surely, if you have said, either of us can call stop <V1 for this and that, does that part of the pre-departure brief include Unreliable Airspeed Indication? I think not.
Which gives this thread much validation and value. Ton pied.
But if it does (which is does not) then surely the answer is to stop and vacate.
My point? Unless not otherwise stipulated (in the brief) why be creative?
Or, in the words of Narrow: