Converse of object

• drive: Forward motion is supplied by aero engines driving airscrews mounted on the outside.

Adjective modifier

• bladed: De Havilland three bladed metal airscrews Accommodation: The hull is divided into two decks.

• constant: Four speed constant speed airscrew Accommodation: Enclosed cockpit over wings Armament: Four 20 mm British Hispano cannon completely buried in the wings.

Modifies a noun

• blade: This device synchronized the timing of the firing of the bullets so each passed between the airscrew blades without hitting them.

Noun used with modifier

• tractor: The engines were mounted back-to-back in pairs, with the forward unit driving a tractor airscrew and the aft facing unit a pusher propeller.