NASA formula, can someone decipher

[toml_12953]

(04-18-2020 08:42 PM)Don Shepherd Wrote:  See the attached formula from an IBM employee newsletter from 1969 related to the space program. Does anyone know what all this (the delta t) means?

Delta means change and t is temperature (in NASA-speak) so Δt would be the change in temperature. Wdot is Corrected Airflow per Area https://www.grc.nasa.gov/WWW/k-12/airplane/wcora.html