Noobie Question

[srfnmnk]

Noobie Question - Motor + Prop size

Ok guys, I am new and experimenting with motors/props and here's the motor I got. I am going to use it on some of the swappables, but I figured I would try it on the versa (tractor without power pod) and see what I could get out of it.

What do you think? Is the prop going to be too big for the motor? I tried my best using the e-caclulator to figure out that it wouldn't over draw the motor but still not sure I did it all right.

Motor
http://www.altitudehobbies.com/brush...-suppo-2810-12

Props
11" X 5.5"

 

[srfnmnk]

nudge,

Anyone have any thoughts on this? Is the prop size too much??

Thanks.

 

[RAM]

I'm also new. I ended up ordering a watt meter so I could try what you are describing without damaging my motor or esc. It's the only safe way I could find to run tests with different prop combinations.

 

[BankNYank!]

I'm pretty sure that prop will be fine but I agree with RAM. Get yourself a watt meter. I use the HK-010 from hobby king. It does a good job and this way you will know for sure what your motors are drawing without any guess work. Props are cheap and with a watt meter the tests are pretty easy. Just make sure your extra safe when doing these types of tests. Secure your model or better yet, setup a test bed for your motors. Those blades will hurt you!

One last suggestion. While that motor will work, I suggest getting something with a little higher kv next time. Something in the 1400kv range will give you good performance. I use the 2208/14 and 2212/10 motors for my FT scratch builds and they work well. Good performance and good flight times on a 3s 2200.

 

[srfnmnk]

I actually have a Park 480 laying around...anyone think the FT Versa will fly with the 480 or is it too heavy?

 

[joshuabardwell]

I actually have a Park 480 laying around...anyone think the FT Versa will fly with the 480 or is it too heavy?

I think you will run into the same issues you are running into on your Delta. You might get away with it if you go with a 3S battery, and make the battery large enough to counter-balance the motor. However, this will result in a faster-flying plane with a higher stall speed, and so it might not be a great choice for a beginner.

 

[srfnmnk]

I am thinking the same thing. What are some examples of planes that are good to fly with the Park 480?

 

[joshuabardwell]

I think you may be going about it backwards, by trying to choose a plane based on a motor that you already own. Pick a plane that is good for you to fly and get whatever motor is best suited for it. The motors are not that expensive.

 

[srfnmnk]

Oh absolutely, that's what I will do, I am just wondering what types of planes the park 480 go well with. I have a smaller motor now and will be redoing the swappables with the smaller motor. Just curiosity is all.

 

[joshuabardwell]

I don't know from personal experience, but I found this online:

The Park 480 Brushless Outrunner motor is designed to deliver clean and quiet power for 3D park flyers weighing 20 to 30 ounces (565 to 850 grams), scale park flyers weighing 25 to 35 ounces (710 to 990 grams), or models requiring up to 275 watts of power. It’s an especially good match for E-flite's Mini Edge 3D ARF (EFL2225) and Mini Funtana 3D ARF (EFL2075), and it would provide extreme power for sport park flyers such as the Mini Ultra Stick ARF (EFL2250).

 

[srfnmnk]

Wow, so that's a lot of motor. Thanks for the info. I am not ready for 3D yet, but when I get there, I'll have a motor for it. Thanks for finding that for me.

 

[joshuabardwell]

Wow, so that's a lot of motor. Thanks for the info. I am not ready for 3D yet, but when I get there, I'll have a motor for it. Thanks for finding that for me.

It's no problem. If you can find a "scale park flyer weighing 25 to 35 ounces (710 to 990 grams)," you might be in okay shape. For example, the Super Cub uses a 480 motor and comes in around 700-750 grams. It's a fine trainer, but I can't find an ARF version--only BNF and RTF, so they already come with a motor.