Hey guys i have 2 newbie questions. With my setup i was wondering if i could run 4045 tri-blade bullnose props.(im currently using 2 blade gemfan 4045) Hobbymate 12amp ESCs, Hobbymate 2204 2300kv motors. QAV 210 frame, CC3D flight controller, Matek pdb and using a 1300 3s 75c tattu battery. Also dumb question but can i use different material props. I notice they make poly-carbonate and GRP/nylon ones. Can those be miss matched or should they all be the same type. Thanks in advance.

A tri blade prop verses a two blade prop is going to cause the motor to draw more amperage through the ESC.  I would think that a 12 amp ESC would be cutting it kind of close when you give it full throttle for any length of time.  I would want at least 20 amp ESC.....maybe even 25.  All your props should be a matched set in terms of number of blades, pitch, material and even brand.  Two different materials are going to flex to different degrees especially during high thrust situations and possibly generate differing amounts of thrust.  You might get away with it, but to me, it would not be worth the risk.  Hope this helps.  And BTW....the only dumb questions are the ones that don't get asked.

its' hard to say without finding thrust data and tests for your motor and that prop size. I think it might be a bit risky though.

Thanks guys Ill keep it safe and only use 2 blade props and use all the same kinds. I bought a few tri- blades thinking i could use them but ill save them and eventually upgrade to some higher amp ESCs Thanks again guys 

I agree with sirdude and Oscar.

They seems like a knock off Emax MT2204 (they look the same and have the same max thrust) so probably your motors will be the same or very close. Take a look at this table, there are no 3 blade props but you can see how many amps draws 2 blades. Maybe you could find thrust test for 3-blades on the internet I couldn't.

Are you using 4 inch props on that frame? You will probably gain more thrust and efficiency by going for a 5inch two blade prop

Yes im using 2 blade 4 inch props. So i could use 5 inch 2 blade and get more thrust and those will be ok with my setup? I also took a look at the graph but me being a noob not quit sure.

(15-Sep-2016, 08:37 PM)rcandvideogameguy Wrote: Yes im using 2 blade 4 inch props. So i could use 5 inch 2 blade and get more thrust and those will be ok with my setup? I also took a look at the graph but me being a noob not quit sure.

It is not just the size of the props you need to worry about. A higher pitch props and bullnose will draw more amps than a race tip lower pitch prop. 12amp esc's nowdays are pretty much obsolete for quads as 20 amp ones are as small and cost about the same.

5045 bullnose props are not something I would entertain on 12 amp esc's.  even if burst is 15 amps that is still only 60 amps burst across the board.  I will pull 85+ amps on 5 inch props with 4S 1300mah lipo, so I use 30 amp esc's where I can and 20 amps when I just cannot fit a 30.

You should be okay with the 5040 kingkong prop from Banggood which is actually a really nice prop. Since you are running 3s it shouldn't be any problems with your escs

(15-Sep-2016, 10:15 PM)oyvinla Wrote: You should be okay with the 5040 kingkong prop from Banggood which is actually a really nice prop. Since you are running 3s it shouldn't be any problems with your escs

Thanks for the info. Could i use 5045 would that also be ok or should they be specifically 5040 props?

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Would something like these be ok too? http://www.hobbyking.com/hobbyking/store...duct=91866

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(15-Sep-2016, 10:14 PM)BigglesFPV Wrote: It is not just the size of the props you need to worry about. A higher pitch props and bullnose will draw more amps than a race tip lower pitch prop. 12amp esc's nowdays are pretty much obsolete for quads as 20 amp ones are as small and cost about the same.

5045 bullnose props are not something I would entertain on 12 amp esc's.  even if burst is 15 amps that is still only 60 amps burst across the board.  I will pull 85+ amps on 5 inch props with 4S 1300mah lipo, so I use 30 amp esc's where I can and 20 amps when I just cannot fit a 30.

Thanks for the info really appreciate it. I should of did a bit more of research when i got the kit and got one with 20amp ESCs but its ok im learning. So pretty much should stick with 4045 props for now using the 12amp ESCs and upgrade my ESCs to 20 or higher.

(15-Sep-2016, 10:25 PM)rcandvideogameguy Wrote: Thanks for the info. Could i use 5045 would that also be ok or should they be specifically 5040 props?

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Would something like these be ok too? http://www.hobbyking.com/hobbyking/store...duct=91866

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Thanks for the info really appreciate it. I should of did a bit more of research when i got the kit and got one with 20amp ESCs but its ok im learning. So pretty much should stick with 4045 props for now using the 12amp ESCs and upgrade my ESCs to 20 or higher.

I have a very similar setup.  12 A ESC's.  I plan on upgrading them as soon as I can. 
I would suggest the KingKong 5040 twin blade props.  I have been using them ever sense I asked a similar question here a while back.  They are the best props that I have found so far.