Gemfan 6045 rotors for the 250

ruouttaurmind posted some pics said Sun, Jun 28th 2015 at 9:43pm ET

I have 2204 motors on my QAV250 so I thought I'd order some Gemfan 6045 rotors to see how they performed. Man, they're huge compared to the 5030's. I'd say they probably have double the surface area.

Here they are compared to the 5030 rotors that came with the kit:
Gemfan 6045

Here's one on the frame. 6045 on the right, 5030 on the left:
Gemfan rotors

2 comments, 2 replies
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garyhgaryh said Mon, Jun 29th 2015 at 1:29am ET:

I wonder if this will stress my lowly 1804 motor? Where did you buy it from? Man, you are always tempting me with stuff to buy...

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- @garyhgaryh I threw them in with my Banggood order for all those super-bright LEDs I ordered a couple weeks ago. Honestly they were an impulse buy and might be had for less elsewhere. I paid $2.52 delivered. http://www.banggood.com/2-Pairs-Gemfan-6045-Propellers-CWCCW-For-ZMR250-QAV250-240-Mini-Quadcopter-p-979229.html
  
  ruouttaurmind said Mon, Jun 29th 2015 at 1:31pm ET
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- @garyhgaryh PS: Those super-bright LEDs are... wow. SUPER bright! LOL!
  
  ruouttaurmind said Mon, Jun 29th 2015 at 1:33pm ET
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ruouttaurmind said Fri, Jul 3rd 2015 at 7:47pm ET:

Since I had my motors all configured to run, I thought I'd do sort of an unscientific straw poll test of the Gemfan 6045 rotors.

First I installed a 5030 rotor, held the frame arm in my hand and slowly throttled up to max. They spin well, make a bit of thrust, and spin pretty fast.

Next I installed a Gemfan 6045 rotor. Same test. Slowly throttle up... but I never made it to full throttle. I was afraid the motor was going to rip itself out of my hand. That sucker moves some air. Much thrust. Oh man was there a bunch of thrust.

Obviously there was nothing scientific about this test, but my conclusion: Wow! Those bigger rotors might actually produce +70% (or more) thrust compared to the 5030.

I had considered NOT putting my motors on the top deck just for ease of assembly, and sticking with the 5030 rotors (6045 won't clear the standoffs in the conventional configuration with motors on the lower deck). But after seeing what those big rotors do... I'm sticking with the top deck plan.

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