Since the beginning of the first Lambach Aircraft project, the society has always thought of designing its very own aircraft. After the completion of the Lambach HLII, the engineering team had little work to perform. Thus, it was time to bring this idea into practice, and the Impuls project was initiated. Unfortunately, the project was cancelled due to various reasons. In the period after the cancellation, the project was evaluated and valuable lessons were learnt. This evaluation formed the basis for the second trial of a society designed and built aircraft.
The S-Vision project took off in the summer of 2010. A regular layout was chosen to simplify the design. Also, the CS-VLA certification basis was chosen, which allows aircraft with a maximum take-off weight of 750 kg and a two-seat configuration.
Efficient, yet Simple
Since the aircraft is completely designed by students, keeping the blueprints as simple as possible is key. But as a student team at the Delft University of Technology, simplicity should not be the leading requirement of the design. The main requirement is to make S-Vision one of the most efficient aircraft in its class in terms of speed and range. This high cruising speed is combined with the ability to carry scientific research equipment in a dedicated payload bay.
The layout of the aircraft changed quickly in the first steps of the conceptual design phase. This was done to meet all the requirements, and to refine the design. Once the overall shape of the aircraft was determined, and also its performance, it was time to dive deeper into the different systems of the aircraft. Bit by bit, all systems were put into place and designed in more detail. Design parameters such as Maximum Take-off Weight, tail surface, and wing planform were updated one last time. The end result of this preliminary design phase is presented in The S-Vision, in a nutshell, table.
The detailed design
The phase after the preliminary phase is specified as the detailed design phase. In this phase, the last parts of the aircraft are designed up to the last millimetre. This means that every component, nut and bolt, is sized to finalize the actual blueprints of the aircraft, which will be used in the production phase.
The goal of the Lambach Aircraft, to provide students with more practical experience and insight, is and has been a great learning experience in which students learn to cope with the different pitfalls related to aircraft design. In the end, the student will become a better engineer by putting the theory into practice!
S-Vision in a nutshell
|Number of seats||2|
|Engine||ULPower UL350iS (97 kW)|
|Wing span||9.45 m|
|Empty weight||384 kg|
|Max Fuel||100 L|
|Cruise speed||270 km/h|
|Endurance||4 h @ 270 km/h|
|Range||> 1000 km|