Originally Posted by BA
If the tailplane were producing +ve lift in this case the aircraft would be unstable
- you'll need to elaborate on that, Brian. It doesn't matter which way the tailplane is working, a change in AoA produces a stabilising tail moment. Basic P of F?
Woodpecker - I think you are confused - you have merely proved that if you push the stick forward, the nose tends to go down (or 'tail goes up' if you prefer!)
The event you describe is achievable on most a/c - it was called 'wheelbarrowing' in my day, and without a nosewheel-----------
PS - great fun in a Harrier as one of the OCU 'frightener' videos showed. (Yes, I know, it was all done by puffers)