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Old 08-21-2019, 05:54 PM
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kraftyflite
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Default New to rc HELP

I am brand new to the rc community, and I want to get into bulsa kit builds. I decided to go with the dandy sport from mountain rc for my first build. From the threads I have found people seemed to have gone with the emax 2805 1300kv. However I can't find this motor anywhere online. I think the next closest thing might be the Emax GT2215/09 Motor. This is the info on it from heads up rc: Emax GT2215/09 is a 2.4 ounce, 400/450 class, 1180KV, 280 watt outrunner brushless motor. It's a good choice for sport planes weighing 18 to 35 ounces, and 3D models weighing 15 to 25 ounces. (the dandy completely finished weighs 13-14) a picture of the propeller test data is included below. I was thinking that the best option for it would be:
battery: 2-Cell 7.4v
prop: APC 11 x 5.5E

I still don't know exactly what battery, or esc. I'm open to a different motor as well so If anyone has any better options for my build I'm willing to give it a shot.
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Old 08-21-2019, 05:56 PM
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kraftyflite
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here is the chart
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Old 08-21-2019, 06:18 PM
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jester_s1
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From the description I found, the recommended motor is a tick better than a park 300, whereas the motor you are considering is equivalent to a park 450. That's adding an ounce to the nose of the plane, which would be noticeable. Plenty of manufacturers make a 1300kv (or close) motor in the park 300 size and power range.
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Old 08-22-2019, 07:52 PM
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kraftyflite
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Thanks jester,
I am now thinking of the Suppo 2208/17 1100kv Brushless Motor.
20a esc
3s 11.1 Lipo. (what mah should I get to maximize flight time without sacrificing too much weight?)
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Old 08-22-2019, 07:54 PM
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it's a park 370 equivalent, but it is pretty much the same dimensions and weight as the 300.
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Old 08-26-2019, 05:17 AM
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That should work better.

I've generally found that it's better to err on the light side with batteries. A plane that size probably won't need more than an 800mah and may fly better with something smaller. The good news is that those batteries are cheap, so buy a couple. Again, recommendations from people who have built this plane can be very helpful.
On the topic of battery size- more capacity doesn't always equal more flight time. With more weight, you'll need more power to stay flying, which uses up your capacity faster. There is a happy place where that balances out, but IMO it shouldn't be your biggest concern. Build the best flying plane possible and enjoy it. If you only get 5 minutes of flying per charge, that's ok. Buy multiple batteries and a good charger.
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