The Humbert Tétras (English: Grouse) is a French two seat ultralight with a single engine and high wing.

It is a conventionally laid out single engine, tractor configuration light aircraft with a high wing, side-by-side seating for two and a fixed undercarriage.

[1] Its straight non tapered wing is a composite structure, with an aluminium frame, Styrofoam filling and fabric covering.

The wings are braced on each side with a single lift strut to a lower fuselage longeron.

The French Centre d'Essais en Vol have tested the Tétras for military use, and Niger has used it for insecticide spraying.