trying2fly
Almost completed Biplane from Dollar Tree foam.  The 2200 mah battery and plane with 3 servos weighs 1#4oz (20 Oz.)
Not running landing gear and wheels the only added wt. will be my motor and prop.  Would anyone know what might be a good choice for the motor/prop?  Thanks in advance!! Dollar Tree Biplane.jpg 
Quote 0 0
solentlife
That puts her at about 570gr and then adding motor prop.

I would think something around the 150 - 200w mark to give moderate level of power on a 7" prop ?

Something like this ... 

https://hobbyking.com/en_us/d2826-10-1400kv-brushless-motor.html

It depends of course on what you want it to do ... with the 2826 1400kv and 7x6, 8x5... it will fly quite well ... with a 2830 1000kv and a 9x5 - it could literally stand on its tail .. 
I'll fly anything if I can launch it ! Youtube : solentlifeuk
Quote 2 0
Wildthing
I second Nigel's choice in motor, I use it and the Emax XA2212 1400 kv motor in a ton of my planes including the combat ones and I work them hard using a 10X5 prop .  Depending what thrust you need yes anywhere from the 7" prop all the way up to 10" , for esc 35A or 40A 
Quote 1 0
trying2fly
solentlife wrote:
That puts her at about 570gr and then adding motor prop.

I would think something around the 150 - 200w mark to give moderate level of power on a 7" prop ?

Something like this ... 

https://hobbyking.com/en_us/d2826-10-1400kv-brushless-motor.html

It depends of course on what you want it to do ... with the 2826 1400kv and 7x6, 8x5... it will fly quite well ... with a 2830 1000kv and a 9x5 - it could literally stand on its tail .. 
   Thank you so much...now for the fun!!
Quote 0 0
trying2fly
Wildthing wrote:
I second Nigel's choice in motor, I use it and the Emax XA2212 1400 kv motor in a ton of my planes including the combat ones and I work them hard using a 10X5 prop .  Depending what thrust you need yes anywhere from the 7" prop all the way up to 10" , for esc 35A or 40A 
  Thanx Jeff...you two always have the best advice...Chas
Quote 1 0