The Gourdou-Leseurre GL-820 HY family of four-seat single-engined floatplanes were designed and built in France during the latter half of the 1930s by Gourdou-Leseurre. The GL-820 HY and GL-821 HY 02 were shipborne reconnaissance / observation aircraft, while the sole GL-821 HY was built as a torpedo carrier.

Design and development

The Gl-820 and GL-821 were low-wing monoplane floatplanes with four tandem open cockpits, (the Cockpits on the GL-821 HY 02 were enclosed). The wings, tailplanes and floats were all supported by a system of streamlined struts.

Variants

;GL-820 HY:The initial reconnaissance aircraft prototype, powered by a

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driving a two-bladed fixed-pitch wooden propeller. ;GL-821 HY:The second aircraft built as a torpedo carrier, powered by a

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. ;GL-821 HY 02:The third aircraft, powered by a

driving a three-bladed metal propeller.

Specifications (GL-821 HY)

References

{{Gourdou-Leseurre aircraft 1930s French military reconnaissance aircraft GL-820