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Turnigy G25 870kv motor

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ericrw03/04/2014 12:48:34
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does anyone know the wattage of a Turnigy G25 870kv motor please.

David Tweddle03/04/2014 13:15:56
290 forum posts
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Try here Eric.

David

Josip Vrandecic -Mes03/04/2014 13:15:58
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2993 forum posts
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Hi Eric ,**LINK**

Cheers

Jo

p.s.

I was late for 2 seconds...sorry...because the people from Kent are always faster ..thumbs up

Edited By Josip Vrandecic -Mes on 03/04/2014 13:17:42

Edited By Josip Vrandecic -Mes on 03/04/2014 13:21:01

Edited By Josip Vrandecic -Mes on 03/04/2014 13:26:08

Biggles' Elder Brother - Moderator03/04/2014 13:28:24
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The electrons have a shorter distance to travel Jo! wink 2

BEB

ericrw03/04/2014 13:41:24
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994 forum posts
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Do I take it that power equals wattage ? Which would mean that it is 470 wattage. Thanks.

ericrw03/04/2014 13:44:55
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994 forum posts
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I was hoping to use this motor in my Dawn Flyer build but the recommended wattage for the model is only 300w. Or is it possible to use a 470w ?

eflightray03/04/2014 14:03:07
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128 photos
Posted by ericrw on 03/04/2014 13:44:55:

I was hoping to use this motor in my Dawn Flyer build but the recommended wattage for the model is only 300w. Or is it possible to use a 470w ?

The 'wattage' actually used will depend on what pack voltage, and what propeller you use.

Watts = volts x amps.

Amps, depends on the load on the motor, i.e. the prop size.

One of the first 'tools' worth getting is a wattmeter.

ericrw03/04/2014 14:16:48
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I appreciate that the prop and esc would have to be acceptable to the 470w motor but would the increase from the recommended 300w to 470w, be acceptable to the Dawn Flyer. I`m afraid my understanding of electric is very basic and I appreciate the help I get from Forumites.

eflightray03/04/2014 14:31:46
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592 forum posts
128 photos

Assuming you're also an IC engine flier.

It's no different really from sticking a 60 in a model meant for a 40, (and don't all IC fliers do that), it has the potential to go faster, but doesn't have to, depending on the throttle.

The only other consideration is the same for the IC set-up, if it's heavier will it upset the CG.

If it fits, go with it.

ericrw03/04/2014 14:40:08
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994 forum posts
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thanks ! I`ve just had a look at your Drag racing days, very interesting !!

eflightray03/04/2014 14:42:18
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592 forum posts
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Just looked up the Dawn Flyer, a 48" span early monoplane, open rear frame.

The Turnigy is a bit of an over-kill, but then she should cruise round nicely on low throttle. Maybe something like a 12 x 6 on 3s Lipo.

eflightray03/04/2014 14:43:42
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Posted by ericrw on 03/04/2014 14:40:08:

thanks ! I`ve just had a look at your Drag racing days, very interesting !!

That was a looooong time ago, then I got married.

Toni Reynaud03/04/2014 14:44:46
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397 forum posts
48 photos

Put the big motor in. The 470 watt statement means only that it is capable of handling 470 watts. If you put a smaller prop onto it, you will find it pulls less power. This means that you can choose a prop so that the motor will only pull 300 watts. However, if you put a bigger prop on and static tests with the aforementioned wattmeter shows that it pulls 470 (or 450 or even 500) watts, just fly at less power (part throttle). This is what is meant by choosing a prop to suit the plane/motor/esc combination.

Another vote for getting a wattmeter - leccy fliers can't really do without unless building strictly in all respects to a proven design specification which includes motor, propellor, ESC and battery specification. Vary any one of these and the wattmeter becomes your very useful friend.

Edited By Toni Reynaud on 03/04/2014 14:45:04

David Tweddle03/04/2014 14:53:56
290 forum posts
3 photos
Posted by Josip Vrandecic -Mes on 03/04/2014 13:15:58:

Hi Eric ,**LINK**

Cheers

Jo

p.s.

I was late for 2 seconds...sorry...because the people from Kent are always faster ..thumbs up

Wrong there, I just typed it right first time Josip, for a change smiley

David

iqon20/05/2014 19:45:42
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1468 forum posts
239 photos

is this motor suitable for hobbyking slick with a 60amp speed controller and yes i will be buying a watt meter

dont ask me anything technical ive no idea when it comes to elec so if you have a better suggestion on a budget set up please feel free but please dont confuse me....this will be my first elec plane.Thanksfrown

john stones 120/05/2014 20:09:37
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10791 forum posts
1481 photos

Have a look at the G32 Iqon

Its rated for sports models within the weight range for the Slick, I am a numptie though cheeky

John

Ben B20/05/2014 21:41:23
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1412 forum posts
4 photos

Which one there are more than one?

john stones 120/05/2014 22:07:27
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10791 forum posts
1481 photos

Ben 770 kv , I said I wasn't very good teeth 2

John

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