Hi everyone!

Not sure if this thread would fit better in the beginners section, either way, here goes:

I'm not very good at flying and just broke my last replacement arm of my first one. I really don't want to repair it because it doesn't fly very well and is broken/outdated. Also it's a way bigger frame with 920kv motors and something like 9" props, not at all what I want anymore!

So, for my new build, which I don't want to put a ton of money on, since I will most likely be crashing a lot anyway I'm looking at getting some motors for 5" props.

I've found some 2205 Turnigy motors on hobbyking that are only 6€. My question is, why are they so inexpensive? They're 2300kv, 28g. Max 21A and according to the description can do 800g of thrust using 5045 props. What's the catch? I really don't think I'll be needing the extra 200g of thrust as I've got a lot to learn left before I would even be able to use that extra power.

Also, the description specifies an efficiency of <3.0 g/W. Is that terribly low, meaning I wont be able to fly more than a couple of minutes before I need to change/recharge batteries?

Here are the motors:
https://hobbyking.com/en_us/brushless-mo...kv-cw.html

TL;DR
Can I buy Turnigy motors for 6€ and not expect them to catch fire mid-air?


Thanks a ton for any answers!

They will likely be fine. Cheaper bearings. I would buy Emax RS2205 for about 10 USD.

https://store.flitetest.com/emax-rs-2205-2300kv-motor/

(21-May-2018, 11:07 PM)voodoo614 Wrote: They will likely be fine. Cheaper bearings. I would buy Emax RS2205 for about 10 USD.

https://store.flitetest.com/emax-rs-2205-2300kv-motor/

Lol I literally just post something similar in the other duplicated thread

I read your reply in the other thread Mark, thanks for the input! I think I will try the cheap motors just to see how they perform. If they turn out to be an absolute waste, then at least it won't have been a big waste!

Also, thank you Voodoo! I have been looking at those motors too and I might go for them if I change my mind about the cheap ones. The problem is just that I haven't found them at ~10USD anywhere in the EU. If I order them from the US, I'll have to pay first the 40 USD for the motors, then another 10 for shipping, then slap on an additional 25% VAT I need to pay in Sweden and bam, that's now 15 USD per motor instead of 10. Maybe it would still be worth it, I don't really know, hence this thread hehe...

Either way, I'll continue my research of motors and maybe I'll come to a conclusion at some point.

Vat... yuck. I hear ya, don’t think you can too wrong here especially for your initial use. Welcome to the addiction

Is it best you buy from the EU or Asia as far as price and VAT?

The DYS Samguk Series motors are also a good value

https://www.getfpv.com/motors/mini-quad-...motor.html

(22-May-2018, 01:32 AM)voodoo614 Wrote: Is it best you buy from the EU or Asia as far as price and VAT?

Well, from EU I don't have to pay the extra 25%, from Asia I do. However, if Asia is less than 80% of the price, including shipping, then Asia is worth it The same goes for the rest of the world.

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(22-May-2018, 02:24 AM)RENOV8R Wrote: The DYS Samguk Series motors are also a good value

https://www.getfpv.com/motors/mini-quad-...motor.html

Thanks! I'll check them out for sure.

Personally, the main difference between expensive and cheap motors are longevity and smoothness. Cheap motors can be just as powerful as more expensive motors, but they don't tend to last as long and you can usually feel the difference in the handling and tuning.

(22-May-2018, 03:00 PM)Oscar Wrote: Personally, the main difference between expensive and cheap motors are longevity and smoothness. Cheap motors can be just as powerful as more expensive motors, but they don't tend to last as long and you can usually feel the difference in the handling and tuning.

That makes sense. I might still go for the really inexpensive turnigy ones, just to feel like I can crash it and not have to worry about my mortgage.