Isabelle Bousquet Quadcopter June 12th, 2018 - 13:55:41
Should we be using different bearings for our high-speed rotor blades which are used on the most common drone types like the Quadcopter designs? I believe so as these drones need to be very reliable long range and will have important cargo onboard as part of their important missions whether on the battlefield commercial application or delivering you a very important pizza or Amazon package. This got me thinking that not only is this relevant to todays military aircraft space flight propulsion future jet engines but also relevant for high-speed little motors that spin well over 10000 RPM. If we want these motors to last and if there are multiple motors per flying craft; MAV - Micro Air Vehicle UAS - Unmanned Aerial System or PFC - Personal Flying Craft (Air Taxi) then it makes sense to use such technology.
A good rule of thumb is to use speed controls that can handle one and a half times the current needed to maintain a hover. My two pound (1 kg) quad needs 150 watts to hover which is approximately 40 watts per motor. With three cells in series in the battery this is less than four amps per speed control (there is one per motor). I originally chose a 25 amp ESC because I was afraid of overloading it. In the future I would use a 10 to 15 amp ESC for a quad like that. I used a 10x4.7 propeller for a simple reason. It is very common and lots of other quadcopters use it. It is also easy to find in reverse rotation versions. A larger-diameter low-pitch propeller is a good choice for a quad.
These awesome machines are not only accessible to everyone but they are easy to learn for everyone as well. You do not need to have any special skills or aeronautical experience but you will need some patience and of course time to practice. Many of these models today are flyable right out of the box but as with everything good in life you will need to practice and fully understand your new drone in order to get the most out of it. Its clear to see that I think quadcopters are awesome! So much fun such amazing technology and many with brilliant features that allow extreme aerobatics return to base features and of course the ability to come with or add cameras such as GoPros which open up a whole new world of vision and experiences. And lets not forget about the growing movement of drone racing! Now this really is an exciting new field!
When I first saw JJRC H31 its super anti-wrestling ability surprised me. As for the beginners it is very easy to make your drones fall on the ground because of unskilled operating. As a result this new RC drone is very suitable for novices. Except for that it has other excellent features. Let me show you more about it next. It is a 6-axis-gyros RC drone with 4 channels so that it has the ability to complete stable flying and it is easy to control. With a perfect arc design it has the great performance to maintain balance even at high altitudes. Normally it supports the flight skills of ascending descending forward backward left sideward flying right sideward flying and 360 degrees rolling.