Motor question

[gagallagher04401]

Hey everyone.

I have a question for you all. I purchased a PNP (used, perfect shape) Parkzone extra 300, with a extra new set of wings shipped to my door for 130.00 Well the guy took the stock motor off and used it in another plane he has. He replaced it with this motor
EMAX GT2815/07 1100KV
5MM shaft
Prop 10-13"
Watt:432
Thrust 63.0 OZ

Here are the Extra 300 stock specs:
Flying Weight: 34.5 oz (980 g)
E-flite Pro 30A Switch-Mode BEC ESC
Motor: 15-size 950Kv brushless outrunner
Prop Size: 10.5 x 9

He has not flown it with this motor yet. I am trying to determine if it would be good to use on the plane, or should I take it off and get a stock motor. I do not have a watt meter (I know, I know, I need to, LOL) Plane has not come yet so I am trying to plan ahead. Is there a way to calculate if the ESC will handle it, and if stock prop will work? Maybe I'll need to prop down?

Worst case I throw a stock motor on and be done with it.

Thanks George

[gagallagher04401]

Anyone have any thoughts?

Thank you
George

[toff]

www.rcflight.se/visaprodukt.aspx?id=944
This is the only site i could find with details of that motor.
Note the bottom bit with modellvikt - 800-1700g.
Your plane weighs in at 980g, so this motor should pull along just fine.

[gagallagher04401]

Thanks Toff
Me no speaky that language LOL

[toff]

Nor me, but numbers are universal.

[ginginho]

George, I'd be concerned that the ESC won't handle the amp pull that the E-Max would need if it does indeed create in excess of 400 watts of power. In simple terms, when running on a 3S lipo pack, dividing the wattage by 10 (volts, allows for sag when being worked) will give the amperage, roughly.