Twentieth Air Force markings were painted on each vertical rudder.

The tail had two vertical rudders with a single horizontal surface between.

The sun glinted off the plane's vertical rudder as it passed beyond the far ridges.

Steering is accomplished by forced air passing across vertical rudders.

Once the torpedo rolls, the horizontal and vertical rudders lose their positions, or even upside down, result in runaway.

I with new inverted engine, re-designed vertical rudder and windscreen, 13 built.

It also had a new structural feature: a fixed, rear vertical rudder, which the brothers hoped would eliminate turning problems.

He wrote in his diary that on the night of October 2, "I studied out a new vertical rudder".

In short, the Wrights discovered the true purpose of the movable vertical rudder.

It was decided to let her sink straight down, instead of descending by means of the vertical rudders.