For 2021, the Chinook 10 team continued to improve the prototype by optimizing various mechanical and electrical components of the vehicle.
At the level of the wind assembly, we have redone a new diffuser and set of blades based on a unique profile, created by the mechanical team, which will improve the general efficiency of the car. In addition, we now use 2 sets of transmissions (multispeed and direct drive) for specific and different occasions.
On the electronics side, we continued the transition to STM32 by redesigning our main control system. Also, we now have a vehicle data acquisition system during runs on the race track.
With these improvements, the Chinook 10 was able to win the fastest race with a mark of 70.10% and 3rd place overall. Note that during this year's competition, there was almost no wind throughout the competition, which disadvantaged all teams.
The Chinook 9 team refined the 2018 edition by optimizing the various mechanical systems. Per example, by reducing the aerodynamics losses, the mass of some sub-assemblies, and making some ergonomic changes for the driver.
By making a carbon fiber canopy we were able to save a couple of kilos, although because of the opacity of the material, we had to develop a new vision system for the driver, this included a drone camera and a low latency screen.
Another major upgrade was changing the old blades by new ones designed specifically for our target performance. After several months of work and research, the team was able to achieve this by making multiple CFD analysis as well as using analytical methods. Their weight was also reduced in the process.
All those upgrades and more is what boosted our performance and helped us win the endurance and drag trials. For a first time ever, we were able to register an average efficiency ratio superior to 100% with 105.48%. Furthermore, we also managed a new world record with a race having a ratio of 105.48%.
For Racing Aeolus 2018, the team relied on its triumphant 2017 platform, improving both mechanical and electronic systems. Indeed, at the mechanical level, the team was able to design a new turret lighter and to improve the aerodynamic profiles of the rear bodies. A new, lighter, one-piece carbon mast made us redesign the support structure of the wind turbine and its connection to the rest of the vehicle. Also, a lighter and more compact rotor was developed allowing once again the improvement of aerodynamic profiles. Finally, it was another 15 kg that were cut off from the vehicle.
At the electronic level, the team developed a new data acquisition system based on the technology developed by SensTel. This new way of acquiring and processing data allowed the team to develop a machine learning system to get the most power out of the vehicle at any given moment. In addition, a new ultrasonic telemetry system was implemented at the vehicle, providing more accurate data on the direction and power of the wind at all times.
With these new improvements, the team of Chinook ÉTS obtained, for a second year in a row, the first place in the general classification. In addition, the team came out with a new track record with an efficiency of 113.97%, a first place in the drag race, a second place in endurance and finally a third position in innovation.
For Racing Aeolus 2017, the chinook team had to return to the drawing boards. The team arrived to the Netherlands with a 90% new car and was determined to break the world record with its new design. A new, more aerodynamic carbon fiber chassis, a new, better-performing transmission, a new lighter turret and a raised wind turbine were built by the team in order to have a better airflow. In total, the team have increase the aerodynamics of the vehicle by 2 times, and subtract 15kg from it. With Chinook 7, the ÉTS team won all the honors.
Chinook 7 won the first place in the overall standings, the fastest race with an efficiency of 102.45% (new world record), the best average efficiency of the competition with 98% and the price of the Gerald Boers.
To prepare for Racing Aeolus 2015, the team used the knowledge aquired with Chinook 4 and optimised every aspect of the vehicule. The mechanical systems were improved to perform better in high wind conditions to reach the 100% mark. All electronic systems were reviewed, simplified and made more efficient. From there, the Chinook Black Box 2.0 was born. Instead of separate PCBs connected to each other through a complex cables network, everything was now mounted on a backplane board responsible to manage connection and supply power to every card.
With Chinook 5, the team came back to Montreal with the drag race event cup and the fastest race. Unfortunately, due to bad wind condition on the first race day, the team won second place in the overall ranking.
For Racing Aeolus 2014, Chinook team was aiming to design and build a more robust and optimized prototype based on Chinook 2 and 3 platform. A new carbon fiber frame and structural mast have been designed to save weight and add rigidity to the structure. The mast rotation system and the blade pitch were automated to simplify the pilot's task. Also, the telemetry system developped by the electrical team now allows real time monitoring of every parameter of the vehicule.
With this prototype, the team won every honnor: First place in global ranking, the Gerard Broers innovation prize and the fastest race allowing the team to establish a new world record of efficiency with a ratio of 96.91% of the wind speed.
In racing Aeolus 2013, the car featured an all new transmission system without chains and based on a rolhoff hub. The aerodynamics of the mast were reviewed to improve the performance of the windturbine. The rotor now has a variable pitch system controlled by the pilot.
In 2013, the team had a major break in the transmission and was disqualified because it did not complete enough races. However, Chinook 3 established a new world record of efficiency with a ratio of 82.6% of the wind speed.
For Racing Aeolus 2012, an all new vehicule was developped with a more aerodynamic body carbon fiber body with a steel structure for the windturbine and a new transmission. this platform is still used on the current prototype.
With this prototype, the team won the first place in overall ranking.