Hi, I would like to know how to determine the propeller size (diameter) with an electric motor? Is there a way to calculate the propeller size to optimally take advantage of the motor power with the best propeller size? Thank you.
Read more…For hobbyists who have experience building electric copters in an X4 or X8 configurations, I would have a question for you.
I assume that most hobbyists want to build their UAV as 1) powerful, 2) lighter and 3) cheaper as possible. But let’s say that
Read more…I went to Hoverfly's website and I discovered that one of their Quadcopter (X8) has its propellers in a wide "V" shape, rather than the usual straight shape. Does anybody had a chance to see (or build) one of them? What is the advantages/disadvantage
Read more…In a quad configuration, if one motor fails, can it continue to fly on only 3 motors? Thanks.
Read more…I have used eCalc and came up with, I think, a nice combination of components for a single copter. The result in the attachment is for a single motor. If I want to make a quad copter and want to increase the flight time, I could multiple this combina
Read more…I am using the ecalc website to check the parameters for battery, motor, ESC and props but I always end up with the warning " The Power is not sufficient to hover " or sometime " Static Thrust < Drive Weight ". I tried to change the spec of the motor
Read more…For a beginner like me, it is sometime frustrating to try to figure out what acronyms mean. Is there a document(s) that explain things like ESC with or without a BEC. What a BEC means? I would appreciate your input in this matter. Thanks.
Read more…I have noticed that most people are talking about a flight time (or mission time) for a Quadcopter in the range of 30 minutes. If I want to increase the flight time, it is not as simple as doubling or tripling the batteries. Additional batteries mean
Read more…If I want to connect proximity sensors, one for each rotor to detect objects sideway, one on top and one on bottom, how many ports do I need? Can they be read on a multiplexer fashion? Are they connected on the autopilot or on the FC? Do they (Ardu h
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