Susannah thumbed a red button and the engine thrummed to life, so low you could barely hear it.

The liner's engines were thrumming.

The two rear engines thrummed to life and the lifter arched around in search of spare parts.

The engine thrummed softly, holding the car an inch off the paving.

The little engine thrummed steadily under the black bonnet, pulling them away from the front.

The engine thrummed, and then tocked around a last turn like a grandfather clock.

The ten engines thrummed with power.

The engine thrummed and the slipstream whistled through the struts.

The engine thrummed to life.

The engine thrummed below her seat, the ventilator hissed beside her.