spec. in scientific and technical applications. In a ‘centrifugal railway’ or the like: That portion of the path which forms a circuit, along the…

The action of loop, v.1, in various senses.

spec. An aerobatic manoeuvre in which an aircraft follows a single turn of a spiral while rolling once about its longitudinal axis.

an aerobatic manoeuvre in which an aeroplane is repeatedly stalled and side-slipped while losing height, causing it to move in a to-and-fro swaying…

Aeronautics (originally U.S.). A manoeuvre in which the direction of the aircraft is rapidly reversed, usually consisting of a half loop followed…

A tail-spin; also, a spinning manœuvre engaged in deliberately as part of an aerobatic display.

Aeronautics. An aerobatic stunt in which a pilot causes an aircraft to rotate 360 degrees about its longitudinal axis while continuing to fly a…

Aeronautics. The action of rotating an aircraft 360 degrees about its longitudinal axis while continuing to fly a straight course.

a manoeuvre in which an aircraft performs a complete turn around its longitudinal axis, executed by means of its ailerons.

see quot. 1950. Also as v.

of an aircraft or hang-glider (see quot. 1959).

an aerobatic manoeuvre in which an aircraft executes an S-shaped path which, when viewed laterally, resembles a figure 8 lying on its side.

A manœuvre in aerobatics involving half an outside loop followed by a half roll.

= aileron roll n.

a rotational manœuvre about a longitudinal axis performed by an aircraft as a sign of triumph (cf. roll, n.2 7); also figurative.

An act or instance of turning over; a turning upside down; spec. an overturning of a vehicle in an accident.

an aerobatic stunt (see quot. 1962).

The action or an act of rolling backwards, or of rolling something backwards (in various senses of the verb).