VAI-41 is the four-seater multipurpose amphibian airplane equipped with advanced turboprop engine PBS
The airplane is intended for amateur and business flights, for tutoring, air surveillance, tourism, etc.
The proposed amphibian airplane can get usage in lands with a many of lakes and rivers, and also in sea coastal areas in quiet sea.
The main advantages of this project is the high performances with a amphibious propertys combination.
VAI-41 Can perform take-off and landing from a water bodies at roughness up to 0,6 m (2 ft), and also from conventional runways, unpaved airfields.
The amphibian can go out water on coast and contrariwise in the availability of artificial hydrodescent or a coastal slope with suitable conditions.
Besides, the amphibian airplane in case of emergency landing has a wider range of choice both overland landing fields, and water bodies.
In this project some engineering solutions which give the chance to get optimum relationship of the performances, and on a number of parametres to receive high values.
Highly-aspect wing with a highly effective wing section, the smooth surface of all airplane, optimum geometry of the fuselage and the tail unit, allow to have small aerodynamic drag at high lifting properties. The optimum distance from a wing to a water surface afloat ensures positive influence of wing-in-ground effect that diminishes take-off run.
The composite structure of the airframe allows to have rather small weight at high strength and the rigidity, therefore this airplane can carry high percent of an effective load.
The powerful and lightweight power unit allows to have a high cruising speed, a high rate of climb, short take-off run.
|Wing Span||11,9 m||25,8 ft|
|Wing Area||12,8 m2|
|Wing loading||102 kg/m2||21 lb/ft2|
|Airplane length||7,85 m||25,7 ft|
|Airplane height||2,4 m||7,85 ft|
|height||1,15 m||3,77 ft|
|width||1,18 m||3,87 ft|
|length||2,25 m||7,38 ft|
|Volume||0,12 m3||4,3 m3|
|Total capacity:||4 men|
|Stoll speed||105 km/h||57 kts|
|Cruise speed||265 km/h||145 kts|
|Top speed||310 km/h||170 kts|
|Range||1200 km||650 nm|
|Optimal flight altitude||4500 m||14750 ft|
|Runway||500 m||1600 ft|
|Manufacturer||PBS (Czech republic)|
|Maximum power||1 х 250 hp|
|Dry weight||65 kg / 145 lbs|
|Fuel type||Jet A, A1, B, ТС-1, Т2, РТ|