I have burned up motors running them up without a prop. They are designed to operate under a load, and running without a load allows them to exceed operational specs.
Suggestion: Episode regarding brushless motors and esc´s.
- Thread starter santiago404
- Start date
That is a point.
You are running in brushed motors without prop - in water - that is cooling!
The brushes needs to get a run in to get their shape and that is best to do without any load.
No motor should be run outside the specs (for an extended time) but for a brushless motor the spec is wiiide....
The only reason to run a brushless motor without a prop is because of the danger when setting up electronics before flying.
I am always using a servo tester when checking the rotation direction of my motors before putting on the heat shrink on the wires between the ESC and motor. I dont use bullet connectors. The (surprise) problem with reversed throttle output on some radios are not a problem for me as the ESC never will start when powered at max throttle.
Then the motor was dodgy
a brushless motor has a top rpm based on it's kv and the voltage you're running it on. If a motors max rpm is 10,000, it will try to get to that rpm (on full throttle) regardless of the prop on it. The danger is putting a prop which is too big on, which will draw too much current and make the motor "squawk" at you.
OFF TOPIC
You learn something every day
I checked the word dodgy - (brittish) same as (us) shady.
Of questionable legality
Disreputable
Anyhow - many recommend not to put the propeller on until everything else is checked on a new plane.
I have never burned a motor (not counting running a speed 400 on 3 cell LiPo resulting in the disappearance of the brushes followed by brown smoke after some minutes of fun flying with an easystar).
You learn something every day
I checked the word dodgy - (brittish) same as (us) shady.
Of questionable legality
Disreputable
Anyhow - many recommend not to put the propeller on until everything else is checked on a new plane.
I have never burned a motor (not counting running a speed 400 on 3 cell LiPo resulting in the disappearance of the brushes followed by brown smoke after some minutes of fun flying with an easystar).
A new example of a useful combination of motor esc and battery.
This example is in a Flair Sopwith Pup weight 3,6 kg - 8 lbs.
Recommended motor .46 glow
The electric setup is :
http://www.hobbyking.com/hobbyking/...y_G46_Brushless_Outrunner_670kv_46_Glow_.html
http://www.hobbyking.com/hobbyking/store/__2166__TURNIGY_Plush_60amp_Speed_Controller.html
http://www.hobbyking.com/hobbyking/store/__9264__Turnigy_3000mAh_4S_20C_Lipo_Pack.html
The plane flies about 12 minutes on 2000 mAh, does loops and other aerobatics.
This example is in a Flair Sopwith Pup weight 3,6 kg - 8 lbs.
Recommended motor .46 glow
The electric setup is :
http://www.hobbyking.com/hobbyking/...y_G46_Brushless_Outrunner_670kv_46_Glow_.html
http://www.hobbyking.com/hobbyking/store/__2166__TURNIGY_Plush_60amp_Speed_Controller.html
http://www.hobbyking.com/hobbyking/store/__9264__Turnigy_3000mAh_4S_20C_Lipo_Pack.html
The plane flies about 12 minutes on 2000 mAh, does loops and other aerobatics.
Similar threads
