The Arrow Active is a British

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 aerobatic aircraft built in the 1930s.
The Arrow Active is a single-seat biplane

Biplane

A biplane is a fixed-wing aircraft with two superimposed main wings. The Wright brothers' Wright Flyer used a biplane design, as did most aircraft in the early years of aviation. While a biplane wing structure has a structural advantage, it produces more drag than a similar monoplane wing...

 of conventional configuration, with single-bay, staggered wings of unequal span. The upper and lower wings are joined by a single interplane strut

Interplane strut

An interplane strut is an aircraft airframe component designed to transmit lift and landing loads between wing panels on biplanes and other aircraft with multi-wing designs. They also maintain the correct angle of incidence for the connected wing panels and are often braced with wires...

. The undercarriage is fixed, with a pair of mainwheels and a tail-skid. It was originally powered by a 115hp (86kW) Cirrus-Hermes IIB

ADC Cirrus

-See also:-Bibliography:* Gunston, Bill. World Encyclopaedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9...

 IIB engine.

The second aircraft built featured a more powerful 120hp (90kW) de Havilland Gipsy

De Havilland Gipsy

The de Havilland Gipsy is a British air-cooled 4-cylinder in-line aircraft engine designed by Frank Halford in 1927 to replace the ADC Cirrus in the de Havilland D.H.60 Moth light biplane....

 III and was designated Active 2.