Recently, I discovered some small counter-rotating propellers that I didn't know before. I ordered some and did some tests. The red 4x4.5" props look really good, nice thin airfoils and a good precision. During the tests, they made the least amount of noise, and are currently my preferred ones. The performance of the 4x2.5" props is even better, but they have a pretty terrible sound and seem to be less balanced. Both propellers outperform the AirAce propellers, but this is not really a surprise because the AirAce have a smaller diameter and more blades. What is also interesting is the weight of the propellers. A propeller with a lower weight potentially has a lower moment of inertia which is beneficial for the control loops: AirAce: 2.1 g 4x2.5": 1.5 g 4x4.5" : 1.3 g So this is an advantage for the 4x4.5" propellers, especially because the weight of this propeller is more concentrated to the center, which should further lower the momentof inertia. ...
http://www.hobbyking.com/hobbyking/store/__18147__Turnigy_Aerodrive_SK3_2118_2250kv_Brushless_Outrunner_Motor.html
ReplyDeleteregards
Mohamed Rasheed
Geiles Teil, kann das Flugvideo kaum erwarten:-)
ReplyDeleteWas Anderes, womit erstellst du deine Videos (welche Videoschnittsoftware?)?
Grüße
Rookie
Back on track with new designs... !!
ReplyDeleteAwesome.. ;)
Can you share the CAD files of the chassis? I would love to construct one of this.
ReplyDeleteThanks!!!
I won't share the files in the very near future, because the copter might soon be available in the shop of a friend...
DeleteThis comment has been removed by a blog administrator.
ReplyDeleteKan you sent my thè cad files pleas
ReplyDelete