Originally Posted by
framer
Google inertia.
Other than my misspelling- I was trying to avoid a parsing of energy issues. perhaps a simple explanation would be to consider how a roller coaster works. Starting at the top of a ' hill' the coaster drops at increasing speed due to energy imparted by gravity (coaster falls to earth ) and gains speed - energy gained is a function of velocity squared. Then what happens, the coaster goes uphill, trading speed( velocity) for altitude and approaches zero velocity. NO additional thrust- energy input is needed to ' climb ' . ETC. I was trying to avoid any form of calculation based on lack of specific data ( speed- altitude- drag- lift, etc ) and instead to simply frame what can give a momentary indication of " climb" or climb rate simply due to energy states involved. Whether a zoom of 50, 100, 200 feet was available for this particular case cannot be determined absent specific data, configuration, gear, flaps, wind, idle thrust, direction, etc .