Starting to lean

Harder in back, softer in front

A drone has no steering wheel and no tail rotor. To fly forward, it first leans forward. The two back propellers spin harder, to about 128%, and the two front ones spin softer, to about 72%. The back gets pushed up more, so the drone starts to tip forward. This is shown 15 times slower.

Why?It is like a seesaw. Push one end up harder, and the other end goes down. The back push grows and the front push shrinks, so the total stays about the same. The drone keeps its height and only tilts.

Go furtherThis happens very fast. Leaning 25° forward takes only about 0.25 seconds. Tipping nose down or nose up is called pitch.