Arruntus,
Check out this article:
Quadcopter Flight School: Flight School 5: Power Efficiency Hover vs. Forward Flight
Not arguing your point; just backing up my earlier comment with the article I had read, per my reference.
Jeff
P.S. my H520 arrived this past Friday. Will be doing my own flight time checks soon enough!
That's taken very fine. It is important to bear in mind that when you are stationary you only need a holding force. When you make a displacement, apart from the holding force, you also have to add a pulling force to it. However, it is true that when the airflow on the propellers is increased during translation, and for this reason it is said that making a slow movement of translation, without turning, consumes practically the same as in stationary or a little less. But we have the downside that also comes into play aerodynamic drag, which, although small because of the low speed, also affects the opposite direction and increases consumption.
Another thing to keep in mind is the load factor applied every time we make a turn on our aircraft that multiplies exponentially as the turning angle increases. Even if you're 20 minutes slowly moving forward at some point you have to turn around to get back and that's where disaster strikes, because consumption is high and it's not worth it either.
For that to be effective, many factors must be taken into account and the speed would be very low, so it is neglected.
You are right, but it is a trap because calculating at what speed the multirotor should be advanced so that this happens can be crazy and therefore it is not taken into account. Normally doing so will achieve just the opposite effect.
All manufacturers give the best results based on:
- Stationary flight: less consumption possible
- Windless flight: the drone does not have to correct the stationary so it spends less.
- At sea level: denser is the air less revolutions to achieve the same sustentation and therefore lower consumption.
These are the ideal conditions. That is precisely why, as in 99.9% of the cases, we, when flying our aircraft, are not in these conditions, we will never be able to meet the autonomy times set by the manufacturers, they will always be shorter.
Tell us what times you get, all information is little
My English is still very bad, I hope you understand everything
P.D.: I'm not an expert, but precisely on the subject of consumption I've been talking to a university professor who gives a master's degree in drones. The discussion was precisely, given autonomy times by the manufacturers and real tiemes on drone autonomy. I have omitted that there are still more forces involved in consumption, I believe that you have to be physical to understand everything, it is not my case
. Learning the basics is hard enough, going beyond....