Hi, I'm the pilot, designer and manufacturer of multirotor drones, PhD. Ing. Mihai Dragu, with over 6 years experience in the field.
I write these articles to educate the market, both merchants and potential buyers of drones. I'm not talking about a few hundred lei toy drones in the supermarket. I saw many merchants who do not understand what they sell and far more numerous buyers who buy drones, that can not use. I will not try to sell anything and I will not advertise for a manufacturer or another. Articles will focus on specific market segments, from entry level to the professional drones, still a niche in activity industries of various fields.
Because it is the first article in this series, let's define what is a drone? Contrary to popular belief, the drone is an autonomous system with the capability to collect data from the environment in which it travels. That includes underwater drones, air, land Patrol Mars Rover type satellites in orbit. Data can be of photos, film, concentrations of substances, various electromagnetic radiation spectrum. Until recently access to drone was limited to organizations with budgets with many zeros and governmental institutions.
Fortunately, with the advent of integrated IMU sensor as small chips of a few millimeters, chips for mobile smartphones, they could rely on AutoPilot build IMU and GPS sensors on planes or ordinary. Simultaneously, the evolution of rechargeable Lithium, which made efficient power supply of drones, streamlined their capability to lift heavier payloads, and also the cost of operating and construction.
So the drones that we know, are more model airplane than drones.
Although there may also be the aircraft type of drones (fixed wing), the most popular due to the simplicity in use is the multirotor rotary wing, the most common model is the Quadcopter.
A special category is a combination of the two. Fixed wings with fixed engines, and take off vertically, are called quadplane. Steerable motors attached to fix wings, are called tilt-rotor.
Quadcopter' s popularity comes from the fact that it has a minimum number of engines, that can cancel each other's torque, of the rotary engines rigidly fixed. There are pentacopters, hexacopters, octocopters, virtually any configuration, but let's start with the entry level - holiday drones .
The holiday / entry level drone must have the following minimum characteristics:
Such a drone can be found on the Romanian market at a price of 500 euros upwards. Everything below this boundary probably has a design glitch or simply is an expensive toy.
The most common construction mistakes, I've met personally at the drones brought to us by third parties, to repair them, are:
Avoid the drones that:
As a conclusion, I recommend you to choose a drone on the basis of impartial reviews (not the manufacturer's). An amateur film with a flying drone, is more relevant than a hundred professional photos of items on the table. Do not choose drones as products on the table!
There are too many Manufacturer's marketing movies with drones, who do not rise up to the expectations of customers, and there are big names in this category. It would be a good idea to ask for a shooting, made with that drone, or even search a youtube clip made with the drone, which ideally, haven't been post-processed with stabilization.
There's your part of the user, to read the manual. I guarantee you, that if you don't read the manual, you will damage the drone during the first flights. You will have to learn how to use it, you need to create the necessary skills and pay attention to technical details. Ideally, the drone manufacturers have to provide flying courses. Otherwise it would be a good idea that will save investment, to resort to a professional in the field for a few hours of flying courses with your drone. He will give you information that could have been omitted in the user manual.
I take this opportunity to give you some tips unwritten in the handbook, you will fly safely as follows:
If you follow everything I wrote above, you will have an enjoyable experience with your first drone.
Do not be miserly budget, if you want to use the drone on professional level, because otherwise you're going to spend extra time and money . In the next article I will address the semi-professional and professional level of shooting using the drone, with its challenges and satisfactions.
If you have any questions about buying a drone, please leave a comment on this article and I will respond.
PhD. Ing. Mihai Dragu
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