radial engine
rotary engine

Power was provided by a radial engine in the nose.

Find out what makes radial engines different, how they operate and where they're used.

It was the most powerful radial engine in the world when introduced.

They concentrated their higher power development effort on radial engines instead.

Forward visibility was considered poor due to the large radial engine.

Powered by various small radial engines of 25-45 hp range.

He also designed radial engines for Avro in the 1920s.

Most American military aircraft and tanks which used radial engines were equipped with this system.

Reventlo had moved to the rounded mass of the radial engine now.

It had an unusual radial engine incorporated into the rear wheel.