The Radley-England Waterplane was a British floatplane designed and built by James Radley and Gordon England to take place in the 1913 Circuit of Britain race.

A single horizontal stabiliser and elevator with twin balanced rudders mounted below it were carried on four wire-braced booms behind the wing.

It was powered by three 50 hp (37 kW) Gnome Omega rotary engines arranged in line above the wing centre section, each connected by a roller chain to a long shaft at the rear of which was a four-bladed propeller 9 ft 10 in (3 m) diameter.

[1] A number of successful flights were made at Huntingdon in April 1913 with Gordon England at the controls,[2] using a temporary wheeled undercarriage.

The flat bottomed hulls were replaced with a pair of clinker-built hulls made by the South Coast Yacht Agency of Shoreham, each with a pair of tandem cockpits; the Gnome engines were replaced by a single 150 hp (110 kW) Sunbeam 150hp water-cooled engine driving a slightly smaller propeller and wing area was increased by slightly increasing the span of the upper wing.