Propeller size discussion

Started by abhishekdas11, April 01, 2020, 11:27:08 AM

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abhishekdas11

Hi
I have an antares slope soarer 100inch wingspan, total flying weight of 1kg. Planning to have an electric conversion with an old 2200kv outrunner and an old kept 10x6 prop which shall add additional weight of a 100grams.  Kindly advise me whether the prop selection is feasable Or do i need to opt for any other prop and motor combination.

YashasR

A 10 inch prop is too much for a 2200kv motor you should not go above 6 inch in that kv. Btw which size stator is the motor?

abhishekdas11

Let me share you the specs of the motor. A2212/6T 2200 kv. 12pole 2.2cm dia stator. Kindly advise further.

Mohammed Naveed

Is this the golden and silver colour motor?
If yes, then I suggest you get another motor. These motors are worse quality you'll simply risk your plane catching fire.

You can look at 2306 2200kv from emax or some similar brand , max prop size for 2200kv motor is 5inch

abhishekdas11

Yes it is the golden and silver one. I too have an emax cf2822 1200 kv motor. Since my total flying weight as calculated is approx 1.2 kg so will a 10x6 prop be required Or a less dia prop can be fitted into.

Mohammed Naveed

Cf 2822 1200kv can take 10x6 prop, you'll need a 30A ESC though, this should work

abhishekdas11

Thank you Mr Naveed. Your inputs shall be of great value.

abhishekdas11

Do we have a chart wherein we can have a range of prop, motor, bat volt and esc combinations.

Mohammed Naveed

The manufacturer always provides a data sheet
Which talks about dimensions of the motor , prop range , volt, current and thrust

This is for your motor
https://emaxmodel.com/catalog/product/view/id/487/s/cf2822/category/1788/

Sometimes if the data is not provided then you'll need to read alot of info on the forum and ask around!

abhishekdas11


abhishekdas11

I have gone through the specs of data sheet. With a 10x5 prop and 3cell lipo the rated thrust output is 840 gms. My total flying weight shall be around 1kg. So won't the airplane be underpowered? Kindly advise

Mohammed Naveed

Unless you plan to turn your glider into a jet plane then it's all fine,
Your plane isn't underpowered the wings will do all the work for you !
Its always good to see other builders who have the same plane as yours and see about their electric setup!