# How to calculate on ground aircraft yaw rate knowing the longitudinal speed and inferred yaw angle

• a generic aircraft is on-ground taxing at 50 feet per second (~15.25 m/s, ~29.5 knots)
• The pilot inferred 20 degrees of yaw

How can I calculate the yaw rate of the aircraft? Do I have enough information to calculate it?

• Welcome to Stack Exchange! I've never heard the term "inferred yaw angle" before; what does that mean? What do you mean by "the pilot inferred 20 degrees of yaw"? – Terran Swett Sep 6 '19 at 12:02

Yaw rate is $$rad/s$$. You have an angle, $$rad$$ (or degrees), and you have a linear speed, in $$m/s$$.
You cannot obtain a $$rad/s$$ value from these two data points.