Engines/Motors/Props (369)

Discussions Replies Latest Activity

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 yesterday
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 yesterday

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 on Wednesday
Reply by DG

X8 Multirotor with DJI e300 self tightening system

I snapped the center plates of my f550 in a crash and decided to try and recycle it onto a 3dr X8 frame. DJI's e300 prop system has tighte…

Started by Jaimie Fryer

0 Oct 23

Battery redundancy or not?

Hi, Wondering what members smarter than me view is regarding running dual batteries? Im looking to do a fair bit of over water flying &…

Started by Todd

0 Oct 22

Finding or calculating motor voltages.

Hi all, I currently own an IRIS quadcopter with  850Kv turnigy motors, and the li-po 11.1V battery. I wanted to ask if anyone here knew how…

Started by Connor

0 Oct 20

Long flight time with Sunnysky v3508 380kv or D5010 360 kv

Hello guys,      I am trying to design a hexacopter with APM 2.5. The aim of the project is FPV and efficient flight time ( more than 8-10…

Started by Fatih

5 Oct 20
Reply by Nico D

250 mini quad - motors for soft proformance

I am building a 250 mini quad for my nephew, and I am trying to decide on motors.  I am NOT looking to build a quick agile racer, I'm looki…

Started by Richard Manley

1 Oct 13
Reply by Jonathan Hair

F550 setup

Hi, Looking at putting together a F550 to carry go pro, gimbal, downlink & possibly retractable landing gear. Will use Pixhawk FC, dua…

Started by Todd

0 Oct 11

Motor and prop test bench

I'm wanting to build a motor and prop test bench and I'm looking for some feedback. I want to compare the Tiger 5010-360 motor and the new…

Started by Jerry Hardin

0 Oct 11


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