Acceleration is the change of velocity per second. For example in the case of gravity, acceleration indicates a change in velocity of 32 ft/sec each second.
For constant vertical acceleration, the jet aircraft would require constant atmosphere. As the aircraft climbs, the presence of oxygen...
The F22 raptor has an approximate 2:1 thrust to weight ratio. It can climb vertically and stand on its tail in a hover.
Vertical acceleration is given by: Thrust - Drag - Weight = mass * acceleration (aka gravity). The opposing force to thrust involves an acceleration due to the force of...