Deliverance, with regard to your example at post 21:
The KE of the ac is 0
The GPE of the ac is 0, considering its initial ht as the datum.
Zoom climb begins:
GPE increases with height.
Airspeed decays, increasingly negative groundspeed. KE increases.
KE if the wind reduced by increased aerodynamic drag in the pullup.
Energy conserved.
Your move.
Please explain why windshear affects airspeed, if the Earth frame of reference is irrelevant. Also consider that a turn in wind is effectively a varying headwind component with respect to the aircraft.