The drone rises, although the angle to the horizontal is perhaps the same, only on the other side. Most Copter pilots know the phenomenon if the drone is placed at high speeds on the other side. Yellow an airfoil is schematically shown, which represents the drone. Sketch how the extra force produced downwards. These can be found for example on the charger. Either a power meter in flight or after a prolonged hovering the spent battery power is measured. The power requirements for hovering is an easy measured value. There are many practical measurements of diverse drones and their propulsion systems. The power consumption are investigated sufficiently accurate for the hover. Somewhere in between there will be an optimum airspeed for maximum flight range. In case 1, the most power for hovering is required and in case 2 for overcoming the air resistance. This is incidentally also apply to a car or airplane. A twice as fast flying drone needs about 8 times the motor power. The force of air resistance increases with the square of airspeed. Does the drone flying very quickly outweigh the drag.The air resistance of the drone does not matter. If the drone is flying slowly away most of the energy is required for hovering.These are:įollowing consideration suggests that there is an optimal flight speed: To determine the maximum flight range of the drone it is important to know the limiting factors. Limits for long range flights with drones This article is not about the maximum range of the remote control, but at the maximum flight range or flight radius of the drone.
#Phantom drone professional#
This professional article is calculated by scientific methods, the maximum range and other flight data as motor power, wind resistance and aerodynamic features. But which flight range has a quadrocopter actually? Drone be increasingly used for transport and logistics tasks. The formulas and calculations are universal and can be used for other hexacopter, oktocopter and helicopter. However, the Phantom 4 RTK does not care about GCP distribution, so if you do not have access to remote parts of your site, this will not impact the full-site accuracy of your project.This professional article is concerned with the flight range of the "DJI Phantom 3 professional". With a non-RTK drone, like the Phantom 4 Pro, ground control quantity and distribution is critical. Without ground control in the far-flung corners of the project, you will not be able to ensure full-site accuracy and you will have areas of uncertainty that cannot be used for making observations/measurements. As a result, non-RTK projects can have entire quadrants with unverifiable data. Or, perhaps the client is in a less than neighborly dispute which makes access tricky. Some sites have inaccessible areas that make shooting control in that section impossible. If you work on sites larger than 20-acres, then the Phantom 4 RTK is the clear winner. But, as the size of the site increases, the Phantom 4 RTK quickly differentiates itself from the Phantom 4 Pro.
#Phantom drone pro#
On smaller sites (5-10 acres) the difference between the Phantom 4 Pro and the Phantom 4 RTK is negligible in terms of the number of control points needed. By contrast, the model created by the Phantom 4 RTK is more akin to a glass sheet with holes where the control points are, and that glass sheet must be positioned correctly so that the control lines up. The model created by the Phantom 4 Pro is a lot like a rubber sheet, and the ground control are like tent stakes that tie the model down in the corners and the center. Technically, we recommend setting three GCPs each time the DJI base station is turned off, reset, or moved.ġ00-acre topo | aiming for ~0.1’ vertical accuracyġ00-acres flown at 200’ AGL with a Phantom 4 Pro would require at least 25 GCPs.Īlternatively, you could get away with shooting one GCP if you were flying the same mission with the Phantom 4 RTK.įor visualization purposes, you can think of a rubber sheet and a glass sheet. We recommend three GCPs per project, regardless of size. Due to the highly accurate photo geolocation, the Phantom 4 RTK only needs a few GCPs per project in order to shift the entire model. About 5 GCPs per flight battery is a good metric to use for non-RTK.įor the Phantom 4 RTK, the amount of necessary ground control is not a function of size and altitude at all. As mentioned above, the Phantom 4 RTK offers much more precision than the Phantom 4 Pro and thus requires less ground control to anchor and correct the model.įor a non-RTK bird, the amount of ground control required for a job is a function of the height you fly at and the size of your site.
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