Originally Posted by
101BOY
GA would only work above 60kts
Judging by the engine cowlings, this would likely to have been a Phase 7 aircraft. So, FWIW, that figure would be 41kts. And, IIRC, HOV and TU modes are included as 'standard' in Phase 7.
That's not to say, however, that you would necessarily want to be using any of those modes in this scenario.