Copper dust underneath p4p props?

Joined
Dec 25, 2017
Messages
19
Reaction score
3
Age
49
I've noticed dust on the props where they attach to the motors...it must be copper from the motors all of which turn freely and none getting hot after flight.
Has anyone else seen this before? Could it be a sign of problems?
I've attached pic😉
 

Attachments

Oso

Premium Pilot
Joined
May 19, 2015
Messages
4,450
Reaction score
3,227
Location
Western US
Has anyone else seen this before?
I do recall it was thought to be rust from flying near the coast or other waters. I’m not certain if that has been confirmed over time, but since @Meta4 identified it back then I tend to put a lot of faith in it.

Here is one example:
 
Last edited:
  • Like
Reactions: ianzone
Joined
Dec 25, 2017
Messages
19
Reaction score
3
Age
49
Thanks @Oso and @Ruben Fred for the replies...I do live near the coast and fly near or over water quite often but I don't think its rust??

Thanks Oso for the link, I will keep an eye on it and keep you updated if it gets worse or clears up...
 
  • Like
Reactions: ianzone

ianzone

**P4**
Premium Pilot
Joined
May 22, 2016
Messages
5,776
Reaction score
3,358
Age
50
Location
EARTH.NZ
I fly by water and in the rain,not sure about actual rust like on cars but more of a residue coming off the spring hardening, me has had discolouring in past and not look pretty but you get that on some,,the spring sets are cheap so if unhappy just replace,,if wipe spring with tissue you might see same colour on tissue
 
Joined
Dec 25, 2017
Messages
19
Reaction score
3
Age
49
I fly by water and in the rain,not sure about actual rust like on cars but more of a residue coming off the spring hardening, me has had discolouring in past and not look pretty but you get that on some,,the spring sets are cheap so if unhappy just replace,,if wipe spring with tissue you might see same colour on tissue
Thanks ianzone, will wipe springs and change them to see if that helps...
 
  • Like
Reactions: ianzone

Meta4

Moderator
Staff Member
Premium Pilot
Joined
Jan 8, 2014
Messages
13,982
Reaction score
8,000
I've noticed dust on the props where they attach to the motors...it must be copper from the motors all of which turn freely and none getting hot after flight.
It must be copper ??
The copper windings in your motors are not subjected to any wear.
There's nothing that rubs on them.
If it's copper, you would have serious issues, but it's not copper.
 
  • Like
Reactions: ianzone and T Dogg

Capt KO

Premium Pilot
Joined
Feb 13, 2019
Messages
964
Reaction score
657
Age
68
Location
IRB, Fl
It looks like pollen or oak dust. If so, It will wash off but it does stain. Use a stain remover like rust away, it will disappear. Luckily it is seasonal. If it’s copper, the rustaway will not remove it. Use a magnet to find out if it is rust.
 
Joined
Dec 25, 2017
Messages
19
Reaction score
3
Age
49
It looks like pollen or oak dust. If so, It will wash off but it does stain. Use a stain remover like rust away, it will disappear. Luckily it is seasonal. If it’s copper, the rustaway will not remove it. Use a magnet to find out if it is rust.
Thanks for the info @Capt KO
Will try that out...
 
  • Like
Reactions: Capt KO

Meta4

Moderator
Staff Member
Premium Pilot
Joined
Jan 8, 2014
Messages
13,982
Reaction score
8,000
It looks like pollen or oak dust. If so, It will wash off but it does stain. Use a stain remover like rust away, it will disappear. Luckily it is seasonal. If it’s copper, the rustaway will not remove it. Use a magnet to find out if it is rust.
It's just rust and there's not enough that you could tell with a magnet.
It comes from the spring on the motor post and there should be some around the prop mounts too.

It's a only very minor cosmetic issue.
 
Joined
Dec 25, 2017
Messages
19
Reaction score
3
Age
49
It's just rust and there's not enough that you could tell with a magnet.
It comes from the spring on the motor post and there should be some around the prop mounts too.

It's a only very minor cosmetic issue.
Thanks @Meta4
 
Phantom Drones from EALLRC.com

New Threads

Members online

Forum statistics

Threads
136,764
Messages
1,414,151
Members
99,404
Latest member
Skwerl