Jump to content

Turnigy G25 870kv motor


Recommended Posts

Advert


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.

Link to comment
Share on other sites

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.

Link to comment
Share on other sites

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.

Link to comment
Share on other sites

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

Link to comment
Share on other sites

  • 1 month later...

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

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...