The job of a member of the aero-perfo-prop team is to globally define the characteristics of the airplane, such as the major dimensions, the geometries and the loading. To do so, we base ourselves on the pointage formula of the competition. Then, MATLAB programs developed by team members execute plenty of calculations and select the configuration with the most potential. From there, we choose the concept and reiterate the programs to validate our choice. To ensure that these models are functioning well, we validate against our previous flight tests. This summer, our goal was to evaluate the real performances of our 2019-2020 airplane and adjust our MATLAB simulation to be closer to reality. For some context, the aircraft performed much better than anticipated at the competition last season. In hindsight, the team could have taken more risks to be able to achieve a higher score. With the help of the videos taken at the competition last year, we were able to determine the kinematics of the airplane in evaluating its displacement over time in the images, with the help of reference dimensions. The next step was to evaluate the forces on the airplane. Knowing the thrust and the mass, we were able to estimate the drag and the lift, validating our simulation models. As well, to prove the precision of the model, we added the fruit of a probability analysis of the wind at the competition during that time of year, so that the effect of the wind is considered and the model has an added degree of accuracy. 

September 3rd 12:45: [https://zoom.us/j/96923872132?pwd=bXhGNFRXWVk1SmlsYnZKazRLNmRrdz09](https://zoom.us/j/96923872132?pwd=bXhGNFRXWVk1SmlsYnZKazRLNmRrdz09&fbclid=IwAR0267IjkD6rLOrW7na-rD_LFJ-XZNp0encVOL2hGeikj9OeV6GN1poB8hg) September 3rd 6:30: [https://zoom.us/j/94785608897?pwd=NFQ5bUg0eGtQMUxRdml1cDZpdjRqQT09](https://zoom.us/j/94785608897?pwd=NFQ5bUg0eGtQMUxRdml1cDZpdjRqQT09&fbclid=IwAR0XW9JOatZMoDMxTthRkt77ToqiVA-PCP3xxR6NpTXhia_RRcwuC1WmozQ) September 10th 12h45: [https://zoom.us/j/99953085640?pwd=MWxaM3RzTGh2d05uNVRlMmZLQXcrQT09](https://zoom.us/j/99953085640?pwd=MWxaM3RzTGh2d05uNVRlMmZLQXcrQT09&fbclid=IwAR0dr2huLXwjc2-rf-Gamv6qkcTxaUFX7l7DSTK3f43ZWqJcrUGrGwTYzLE) Looking forward to seeing you there!

Are you thinking about joining Avion Cargo, the best technical student association in room C-572? You are at the right website! Come join us on Zoom for our information sessions! We will be presenting all of our departments and projects, with a question period at the end. Our team will be present to answer all of your questions to the best of our capacity. We are looking forward to meeting you, too, so don’t hesitate to contact us via email or our social media, there is no such thing as a silly question. The days and times are: * Thursday September 3rd: 12:45 pm and 6:30 pm * Thursday September 10th: 12:45 pm We will share the Zoom links on our social media the day of! As well, September 10th at 6:30 pm we would like to meet you in person, place to be determined, to launch our scavenger hunt, *les jeux géniaux d'Avion Cargo*! More details to come! 

The micro class team of 2019-2020 had an ambitious project for the competition. In fact, a flying wing configuration was chosen, coupled with a quite thin airfoil. Moreover, with an analysis of the weight lifted by the aircraft and the available dimensions, a large wingspan was necessary. Thanks to the advances made by the 2018-2019 team, it was possible to foresee building the wing entirely out of composites. However, the methodology was lacking. The manufacturing of the wings primarily in carbon fiber was chosen due to its dimensions being non-conservative and the uncertainty of the resistance to the stress the wings will endure. This way, it was possible to have a structure much more solid. This manufacturing method was essential to the success of the team and the results were surprising! Even though this technique allowed us to build our progressive configuration, it was a great challenge. In fact, the development of a functional methodology proved to be difficult. The help of Jacques Girard from MATS was hugely appreciated throughout this part of the project! Unfortunately, the long construction process meant that the team was only able to make one spare wing. Thus, in the case of any breaks, it was not always possible to change the parts and repairing just one section of composite proved to be rather difficult. The team of the micro department 2019-2020 is very happy with the results despite the short duration of the flights! It was an incredible learning experience. Throughout the summer, I’m writing a guide with all that we learned throughout the year on carbon fiber for the future members of the micro class team. I look forward to seeing what they will accomplish with these new tools. 

For a few years now, Avion Cargo has planned to update our website to a more modern look and to be able to share more news with our community. Our wonderful collaborator Oliver Daniel worked with us to put up this very website over the course of the spring and into summer. While the quarantine made it difficult for us to meet in person, everyone still managed to put our minds together to draft plenty of articles to present to you, our amazing community. We wanted to share with you our projects, our learnings and how much we appreciate having the privilege of being part of this association. We sincerely hope that you enjoy this new platform and stay up to date on all of our news!

We began with the Avion Cargo team at the beginning of our second year at Poly. At first, it was a little intimidating given that we often heard that it was a technical association primarily made up of boys and we were worried that we wouldn’t find our place. The truth was that all these preconceived ideas held no water. Our experience was incredible, we participated in the design and the manufacturing of the airplane from beginning to end! We aren’t a large technical association, so we all have the chance to participate as much as we would like and to have important responsibilities. We never had too much difficulty given that the team was very welcoming and everyone was ready to help us if ever we had doubts or the workload became a little too heavy. We made friends that we will keep for many years and with whom we have more of a connection than just school. The many nights spent at the workshop eating pizza, listening to music and cracking jokes: this is what we will remember when we leave Poly. Not to mention the road trip all 24 hours to Florida! > It's one of the best experiences that we had at Poly up until now and we encourage everyone, regardless of program, to come join our team because it offers not only an enriching and unique experience, but it allows us to meet a variety of exceptional people.