The Sorrell SNS-7 Hiperbipe is a two-seat, negative stagger, conventional landing gear-equipped cabin biplane designed for amateur construction that was produced in kit form by Sorrell Aviation of Tenino, Washington and since 2015 by Thunderbird Aviation.

[1] The SNS-7 (Sorrell Negative Stagger, Model 7) was intended to give full unlimited aerobatic performance without sacrificing the comforts of a cabin-style aircraft.

The whole airframe is covered in doped aircraft fabric, including the plywood-covered wings.

[1] The tooling and manufacturing rights were acquired by Thunderbird Aviation in 2015, who began making parts and basic kits.

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