There may have been more than one discussion of shrouded props, but after reading the threads and a great deal of the reference material on prop design, I am more interested in a variation on previous discussions I also have more to ask that I have
Read more…Has anyone got a schematic for a 'wired' control to increase the RPM of a motor (with prop attached) from 0 to 100%. I would prefer not to use a Tx/Rx/Flight Controller.
Imagine if the motor were a light bulb, I am looking for the 'dimmer' circuit. I
Read more…I have read that some commercial multirotors have programmed routines to get off the ground and through ground effect up high enough to hover or fly.
Is this real or just marketing hype? If this is really a feature, how many pilots find it useful? How
Read more…I am looking for a general understanding of how frame sizes are defined or described for hexacopters.
When I see a hexacopter frame defined as 550 or 600 or other larger sizes, are there typical or common prop sizes that are used for those frames?
Is t
Read more…Are there any thrust stands that evaluate the lifting capabilities of the entire multirotor, and not just one motor/prop combination? Are the thrust characteristics such as efficiency of one motor the same when it is installed in the UAV with all the
Read more…After reading the following paper, I would appreciate some help understanding what "Blade Flapping" means.
http://eprints.qut.edu.au/33833/1/33833.pdf
Is this something that we have no control over? Are commercially available props designed to flap or
Read more…When thinking through the three different designs, I am pondering what would be the desirable traits of a Tri, Quad, or Hex, if the overall flight capability of each were the same in terms of the same lift, endurance, and speed.
Now I feel I should as
Read more…Where are the best resources for cameras with a FOV of around 40 degrees? This is equivalent to what we commonly call a "normal" focal length. And, once we find this lens, where would I find a 1" sensor at about 20 MP with a similar "Normal" lens tha
Read more…Is there a (standard) way that joysticks can be used in place of the more common controls that are included with all radio controllers?
Read more…Can the PIXHAWK be programmed to do specific flight routines? I am curious about flipping a quad or hex and then flying inverted by simply issuing a single command. (I am just a curious guy.)
Read more…I have read a number of threads related to shrouded propellers. And, if the primary goal were to significantly improve the safety of a drone used for close inspection of buildings and roofs, then any net efficiency gain would simply be a bonus. Base
Read more…are there some inherent differences between quad copters and hexacopters. What would make a designer choose 4 or 6 propellers? Is there a sweet spot for lift capacity with a quad vs the sweet spot for lift capacity of a hex? What is that sweet spot?
Read more…Drones seem to be used in two primary ways. 1) Flying and 2) imaging while flying
Within the area of creating images while flying, this can be further broken down into two primary subgroups. A) Videography B) Still photography
When the commercial mak
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