Engines/Motors/Props (375)

Discussions Replies Latest Activity


It sure seems like the UAV industry, small and large, focuses on electronic and system technology.  Maybe that is because the people workin…

Started by Bill Montagne

1 3 hours ago
Reply by iskess

Thrust test confusion

Hi, I'm looking at motors to use on a quadcopter and I know that I need thrust to be two times the weight. When I look online there are thr…

Started by Andrew

0 on Saturday

Motors for large quadcopter

Hi guys, I am trying to find some motors for my quadcopter that would be a good upgrade to the multistar 4014-320kv.  I would like to get 2…

Started by Zac 117

0 Nov 20

Slipping shaft and bolt-on prop adapters

I have a brushless outrunner. The shaft is secured to the outrunner by a grub. However, this grub isn't holding the shaft properly and the…

Started by agentremnant

0 Nov 19

Motor choice for 550 sized quad on 4s with 11" props?

I am building a WQ550, it can fit up to 11" props and I have eight 4s 5000mah 30c batteries that I want to use.  Eventually it will carry F…

Started by Earp

4 Nov 18
Reply by agentremnant

Is anyone familiar with Java Prop?

So I've been dabbling in prop design for a while, using Java Foil and Java Prop. My issue is that some results appear to be too good to be…

Started by Bortimus Prime

1 Nov 6
Reply by Bortimus Prime

Over heating motors

I've been having a lot of trouble lately with motors on my hexacopter motors over heating in an extreme way. It got so bad that half a prop…

Started by Jess

0 Oct 31

Propeller drag coefficient from thrust coefficient? (EPP1045)

Is it possible to calculate propeller drag coefficient from thrust coefficient? Are they related in any way? I have calculated propeller th…

Started by Tom

11 Oct 30
Reply by mohsein

IRIS+ DJI 9443 PROPs on it.

Hi Guys,  I got my 3DR IRIS+ last week. Did some tests with it, and I love it !!! Unfortunately I did something stupid with the way point…

Started by Pascal Turcotte

0 Oct 29

ESC nonstop beeping

Greetings, I have a fully assembled Hexacopter and it was flying just fine until now. Now when I connect the battery it goes through the n…

Started by Michael TD

5 Oct 28
Reply by DG


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