VOLER SUR UN AVION BIPLAN NEUF EN 2024 / ESSAI COMPLET DU STAMPE SV4 RS

Video from the channel L'Appel du Rotax about Stampe SV-4, linked on its Above Ten Thousand entry. Duration: 14:10. Language: French. Video type: Onboard.

Flight test of the Stampe SV4 RS, the microlight version of the Belgian biplane, carried out by La Gazette de l'ULM. The video first shows the aircraft on the ground, covering the engine and structure, and then a local test flight: cruise speeds, stalls, climb, approach and landing.

Unlike the original, which is made of wood, the microlight version has an aluminum structure. To fit the category, about 300 kg had to be shed, the first 80 kg through the engine change. It runs a Rotax 912 with a 2.43 reduction gearbox, a two-blade wooden propeller and a smoke system. In flight, cruise speeds of between 120 and 135 km/h are measured depending on power setting, and the 73-litre tank gives about three hours with reserve. With reduced power, the stall occurs around 55-60 km/h and is clean, with a slight drop to the left; it has no flaps. Best climb is achieved between 80 and 90 km/h, with a peak of 1,000 feet per minute that settles around 600-700. Takeoff is very short, and landing fits within 200 metres if braking carefully to avoid nosing over.

Pilots describe it as stable with hands-off controls and very precise thanks to its four ailerons, although the open, unheated cockpit makes it less comfortable for long trips. The pilot sits in the rear seat, close to the centre of gravity, so a passenger's weight barely affects the balance. They consider it affordable for pilots with some experience.