The Helite Tsunami (English: Tidal Wave) is a French high-wing, single-place, rigid-wing hang glider that was designed by Gérard Thevenot and produced by La Mouette under the Helite brand.^[1]

The Tsunami was developed from the La Mouette Top Secret as a rigid wing competition hang glider. Thevenot decided to market it under his Helite brand which was also used for a line of powered parachutes. Available c. 2003, the aircraft is now out of production and the brand is no longer used.^[1]

The aircraft is made from tubing, with the wing covered in Dacron sailcloth. Its 12.9 m² (138.9 sq ft) area wing is a "topless" design with no kingpost. The nose angle is 145°.^[1]

The Tsunami won a number of hang gliding championships in the rigid wing class.^[1]

Data from Bertrand^[1]

General characteristics

• Crew: one
• Wing area: 12.9 m² (139 sq ft)