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DIY performance upgrade - Staggering!!!

ScrubJay

Member
Joined
Dec 19, 2021
Messages
12
Reactions
17
Location
Morrison CO
I have heard so much about paying attention to the condition of your props. Little nicks, warps can cause your bird to fall out of the sky!
Imagine my surprise when I closely examined my props, and to my horror saw “raised letters”.
Surely that makes a difference in the performance.
So first I needed to set some benchmarks, and I set out for my regular launch place, and did a lot of tests. More on that later.
Then I painstakingly sanded off the letters using 400, 800, 1600 and finally 4800 grit sandpaper.
If you sand off too much, then you can use good old fashioned bondo to fill it in, then sand more carefully next time. This could cause a small wobble in your flight, though.

The results were staggering.

First, the handling was a lot snappier and somehow smoother. Hard to describe, but a delight to fly.
Then the speed tests - on a fairly similar path in unknown wind conditions I was readily getting 41.1 mph whereas before I could only get to 41.0, sometimes even as low as 40.8 mph.
And the battery life increased (in one test) a full 28 seconds longer. Over the course of a 1000 flights that’s a staggering 7.777 hours of extra flight time! Do the math.

Now I’m not saying you should rush out and “dress” all of your props, the extra performance is probably not for everyone.
But it changed my life…

On another note:
DJI SHOULD have disclosed this and all data at least a year before the drone was announced. I’m thinking at the very least a class action suit by millions is called for. Typical sleazy DJI hiding things from its excellent customers! Well, someone has to make a stand. With this terrible corporate practices I stand ready to say the following: I pledge to not purchase more than 3 DJI drones a year! (Unless it’s a special year) DJI, I hope you feel this at the corporate level, and decide to change your ways.

And what kind of data IS the Chinese government gathering about these props? You can only imagine how that might be used.
 

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I fully support this important Class Action . We must have a member lawyer or two that can get the ball rolling and file this by the end of today.
 
Already did it - the turbulence felt in high speed rotors or propellers is caused by small raised spots or indentations and is referred to as an ‘air follop’.
 
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Typical sleazy DJI hiding things from its excellent customers!
I fell in love with you on the strength of this comment alone . . . 😆🥰‼️Too bad the CAS is only good for 'today' . . . ;)
 
  • Haha
Reactions: Faster
I fully support this important Class Action . We must have a member lawyer or two that can get the ball rolling and file this by the end of today.
Lolz I'm not going to hold my breath on a class action....

Cheers!
 
I just used a kitchen knife and gouged the letters off and got 50% increase in everything. It even allowed my battery to charge to 120% so I'm more than happy. But this morning its back down to 100% WTF?
 
I just used a kitchen knife and gouged the letters off and got 50% increase in everything. It even allowed my battery to charge to 120% so I'm more than happy. But this morning its back down to 100% WTF?
Yeah, this is hard to explain. Will have to do some more testing, but I’m hearing this from a number of sources. Many, many sources.

And the Class Action Suit was gaining momentum, more than 5 or 6 people.

Thanks all for the comments, maybe today is not the day to make this mod.
 
  • Like
Reactions: ifr
I just used a kitchen knife and gouged the letters off and got 50% increase in everything. It even allowed my battery to charge to 120% so I'm more than happy. But this morning its back down to 100% WTF?
A little fine sanding with 4800 grit automotive sandpaper will fix it.

😁😁
 
Last edited:
I have heard so much about paying attention to the condition of your props. Little nicks, warps can cause your bird to fall out of the sky!
Imagine my surprise when I closely examined my props, and to my horror saw “raised letters”.
Surely that makes a difference in the performance.
So first I needed to set some benchmarks, and I set out for my regular launch place, and did a lot of tests. More on that later.
Then I painstakingly sanded off the letters using 400, 800, 1600 and finally 4800 grit sandpaper.
If you sand off too much, then you can use good old fashioned bondo to fill it in, then sand more carefully next time. This could cause a small wobble in your flight, though.

The results were staggering.

First, the handling was a lot snappier and somehow smoother. Hard to describe, but a delight to fly.
Then the speed tests - on a fairly similar path in unknown wind conditions I was readily getting 41.1 mph whereas before I could only get to 41.0, sometimes even as low as 40.8 mph.
And the battery life increased (in one test) a full 28 seconds longer. Over the course of a 1000 flights that’s a staggering 7.777 hours of extra flight time! Do the math.

Now I’m not saying you should rush out and “dress” all of your props, the extra performance is probably not for everyone.
But it changed my life…

On another note:
DJI SHOULD have disclosed this and all data at least a year before the drone was announced. I’m thinking at the very least a class action suit by millions is called for. Typical sleazy DJI hiding things from its excellent customers! Well, someone has to make a stand. With this terrible corporate practices I stand ready to say the following: I pledge to not purchase more than 3 DJI drones a year! (Unless it’s a special year) DJI, I hope you feel this at the corporate level, and decide to change your ways.

And what kind of data IS the Chinese government gathering about these props? You can only imagine how that might be used.
I experienced a “raised letter stall” and still tremble as I write this.
 
  • Haha
Reactions: Solsearcher

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