Since Friday 16 July until Sunday 18 July, held the 1st AeroDesign Venezuela 2010, Core UNEFA Aragua, which is a great initiative that seeks to promote and advance aircraft design among engineering students Aeronautics at the university.
This event inspired AeroDesign SAE competition, aims to train participants here in Venezuela first so then participate in the competition abroad, recreating that power as accurately as possible, and participants will have a very good idea of \u200b\u200bwhat the international event and how is the environment in which they have to unwrap.
Caracas, 18/07/2010, Aeroblog .- On Friday July 16, the first day, it was appropriate for the presentation and defense of design reports and with only two months of planning, all teams had gone through a difficult time in the planning and execution of projects. As a comparison we can see that publishes AeroDesign SAE competition rules of the competition with approximately 10 months in advance. These ten months were reduced to only 2 months, not for lack of organization, but because the organizers of this event, led by Mr. Donald Lee, was intended to correct some of the equipment failures that could be presented at the AeroDesign SAE competition.
"Paste here, hand me the pliers, seeks monocot. We are on the verge of madness, but we've done with the greatest enthusiasm in the world "were some of the words shared by members of the competition with Aeroblog. Teams that had sleepless nights, stress, all cast their aircraft, which was entirely made by team members, from conception, through design and manufacturing.
"Bicentennial Koganeiro, Cari Care, Guacharo, Manuelita Saenz, Alcaravan, Legionnaire, Aero Structures" were some of the names of the teams in the AeroDesign Venezuela. Many of them, a product of the plight of the competition, had not yet completed the manufacturing of aircraft, but yet Aeroblog could appreciate the design of some aircraft in digital. Although the design of aircraft had many features in common, since all have the mission and carrying a payload, is appreciated more singularities in manufacturing and material selection of aircraft present. The shared design features were the wingspan, which was on average 2.5 m, and airfoils, most were very curved profiles, typical profiles for much lift at low speeds. Thus the name stuck out of the class profiles and Eppler Selig greatly. Importantly, there were teams who created their own airfoil, this is the case, the team "Cari Care" profile "Pelican" product of a combination of two wing profiles, this strategy also applied the team Alcaravan "your profile" Alcaravan-1. "
One of the most innovative proposals came from the team of "Aero Structures," team turned to the manufacture of composite materials, which undoubtedly highlighted among other proposals. The design also appreciated hybrid wing marginal terms, and a good finish in manufacturing.
The jury present to defend the design reports were made by Said Arafat, Aeronautical Eng, President of Aeronautical Constructions Venezuela CA (CAVENCA), with experience in AeroDesign SAE competition and also in the area of \u200b\u200bcomposite materials. Alejandro Morales Aeronautical Engineer, currently working in the area of \u200b\u200bcontrol and flight mechanics at the Technical Institute of Brazilian Aeronautical and Aerospace Eng Oliver Visconti, working in the area of \u200b\u200bgas turbine simulations. All jurors were chosen since they already have experience in AeroDesign SAE competition while they were students, some of them have participated in three editions, so easily were in line with the competition.
The development of the defense of design reports was very interesting. The first team, having had problems with his presentation, defending your project completed without the support of visual material, but yet it was not for that reason cease to defend their report design. Then came the turn of the team "Koganeiro" which appear in his defense statistical studies to estimate the empty weight takeoff (ETOW), a type CH10 airfoil smoothing, in order to achieve the greatest amount of lift possible powertrain assembly consisted of the standard engine of competition Engines OS .61 FX and a propeller 12''x6.'' He kept the team
"Canaima" which said that tests performed static and dynamic traction for the selection of the propellers. Also had a hybrid wing design made of polyurethane reinforced group to which the jury was highlighted by the use of composite materials.
In conclusion, the jury made observations very strongly in reports design, this in order that the reports that are displayed at the SAE competition AeroDesign already have a "pre-polishing." Many of the comments of the jury came as a result of a lack of structure in the calculations, stability analysis and control. But the task was accomplished, the teams will then have time rethink their design reports according to the observations of the jury, then deliver AeroDesign SAE committee.
On Saturday 17 we moved to the Military Aviation School, where flights were made. Once at the site of competition we find that all teams were in a frenzy are making adjustments, repairs and calculations with their aircraft, which is normal both in Venezuela and in AeroDesign AeroDesign SAE. Many of them were using their aircraft monocot, which is a coating that is placed glued to the aircraft. And is that the reason was because progressively frenetic both the teams were called to the inspection table, where they required, according to the rules, to hand over their aircraft to verify that they complied with the rules of competition:
• The length of the wingspan of the main plane, plus the horizontal stabilizer, plus the total length the aircraft and height were less than 6.50 meters, and greater than 4.5 meters.
• The maximum takeoff weight (MTOW) must be less than 20 kg.
• The payload has to be removed easily.
• The motor shaft can not have mechanisms to decrease or increase RPM on the propeller, ie the helix has the same number of the engine RPM.
On the site inspection only was the team captain and the respective tax. The assistance of technical advisers was not allowed.
In the event we are also involving Aeronánutica Integration Department (DIAC) of the company G & F Technology, where he met his team of Carlos Rutile Spain, Telecommunications Engineer, and works in the telecommunications area , Mr. Ciro Cabrera, General Coordinator of DIAC, Industrial Engineering and Aviation Maintenance Technician, which we have spoken before Aeroblog very well, Mr. Ricardo Benitez, Systems Engineer, who is a pilot of unmanned systems developed in the company and serves on flight operations and integration, and Keshan Dass, Technical Aviation Maintenance, Aeronautical Engineering student and member of Aeroblog team, in charge of technical support and documentation.
In the company's stand GYF Technology could see two projects in development. The first is a rotary wing UAV developed in response to surveillance and monitoring needs in areas such as civil construction, electrical transmission power lines, pipelines, among others. It's very impressive to see this system in flight. With a length of about 1.95 meters long, 2.4 meter wingspan and autonomy of 50 minutes is a real pride to see what is unfolding in the country. While the structure, the propulsion plant and the rotors are imported components, all associated engineering is the electronic integration of national development. Capable of transmitting high-definition video and IR is indeed a great promise.
demo flight in the helicopter saw G & F with some astonishment the flight dynamics of this aircraft, from the ground effect to the cyclic and collective pitch controls, there is little to envy to a Bell 412. Faces and very attentive by DIAC team flight when we show that this is not a drone aircraft or some kind of toy.
The second is a joint development and G & F CAVENCA through DIAC, which is a proposal for a forward observer in order to be distributed to the military. The design of this aircraft is fully developed country by Mr. Said Arafat. Proposed to be a fully modular system easy and quick deployment by the (the) operators can carry a payload of 5 kg, estimated for high-definition cameras for day and night.
of these two projects will be discussed in greater detail soon. Continuing
competition, attended by several modelers in the area, as is the case of Mr. Elckar Monsalve who entertained the audience, but not the AeroDesign teams since they were really busy, with scale model aircraft from a Pilatus. Also caught our attention the demo flight model aircraft aerobatics, which know the model and driver, making the perfect maneuvers that challenged our understanding of physical laws, but unfortunately ended in an accident, crashing to the ground in front of the fail signal receiver.
The timing of the flights had passed by then. Were 61 meters of runway for takeoff and 122 meters to the landing parameters that pilots have to overcome to achieve a successful flight in accordance with the rules of competition. Having successfully passed the inspection by prosecutors, was given the nod to the team "Guacharo" to go to the top of the track and take flight. In this first attempt the aircraft does not carry payload, according to the rules of AeroDesign Venezuela. Under the control of Jorge Diaz Granados, experienced modeler, we saw a take-off difficult trips exceeded 15 meters, a smooth, controlled flight, also with the landing which gave the team not much to worry about the integrity of the aircraft before and after flight operations.
result that many of the teams were not yet ready to pass the tax inspection, much less to go to flight, the team Guacharo "made its second attempt to fly. With a payload of 5 kg this time, it became clear as they change roles. On takeoff the aircraft was to air on 25 meters. Upon landing, the product of the aerodynamic characteristics of the aircraft, it appreciated the speed with which they came closer. Then at the time of landfall, the landing gear and the aircraft suffered no train slid on its nose. "The inspection we advise on the landing gear "he says Said Arafat. Caras stressed by the team "Guacharo" were observed at impact, but the measure was taken simply and quickly locate the plane, fix it and make it to air again, because the flight was invalidated by the marshals at the time in the wing went off the track. Finally on the second attempt to fly, got off without problem, with the approval of judges to door and with the same load. The result was both the nose gear as the secondary were strongly landing disqualification for the team Guacharo. " Among the comments about the team's performance stressed that the scale was not sufficient for weight.
was then time for the team Manuelita Saenz, who exhibited a trapezoidal wing aircraft with a unique and tail boom. At the time of the first flight, due to an imbalance, the aircraft tipped too far back, and given that at high angles of attack aircraft stop producing lift, this could not go to air in a first attempt. Then, in a second attempt, got off the aircraft, but it did not complete the circuit due to flight difficulties.
Thus, then, as passed this 1st AeroDesign Venezuela 2010, where he could really enjoy an atmosphere charged Aeronautics and enthusiasm. Applaud, congratulate and thank the team AeroDesign impetuously Venezuela to carry out such an initiative. We hope to repeat a result all of the following years and always see growing number of participating teams.
Note: Special thanks to Cumana Hennis, Said Arafat, Donald Lopez, and all the organizers of the event, the entire support team Aeroblog
DNA / Aeroblog
