Toronto Electric Model Aviation Club Forum

Toronto Electric Model Aviation Club (TEMAC) => General Discussion => Topic started by: sihinch on January 04, 2015, 01:08:31 PM

Title: Power plant help
Post by: sihinch on January 04, 2015, 01:08:31 PM
Hi

Looking for some advice please. I've just acquired a KMP 72" Hurricane.  It says the finished model will weigh around 5kg, which is about 11lbs, however an electric conversion on RCGroups ended up at 13lbs.

I'd like some battery and motor advice.

It's slightly bigger and heavier than the Horizon 60 size warbirds (that run on a Power 60 with 6S.)  I'm guessing I want around 1600watts.

I was thinking either E Flite power 90 or the HobbyKing (cheapo route) of the G110, and probably going 8S.

What are people's thoughts?
Title: Re: Power plant help
Post by: electroflyer on January 04, 2015, 02:19:23 PM
    Hey Simon,
  Great score! I would suggest at least a 110 (Eflite or equivalent) with 10s 5000mah. This is what I use in my 71" 120 size P-47. My motor is a Turnigy , but same idea with the low Kv and high voltage to power the plane. My aircraft takes off and climbs with authority with this setup. Hope this helps and send some photo's.
 
    Glenn
  By the way, the Bluenose is under construction.
Title: Re: Power plant help
Post by: sihinch on January 05, 2015, 10:53:11 AM
Thanks Glenn.


Do you know which motor it is that you're using?
Title: Re: Power plant help
Post by: Michael on January 05, 2015, 11:02:26 AM
I agree with Glenn.


I once used an E-Flite 110 with 10 cells in a similar size plane.
Title: Re: Power plant help
Post by: electroflyer on January 05, 2015, 12:59:27 PM
    Simon,
  My Turnigy does not seem to be listed any longer. The number was  6364- 260 Kv. There are lots of equivalent motors available, like the Eflite 110/160 and you could possibly check the large Rimfire motors.
   The Turnigy G160 245Kv which would probably be your best bet as it is fully capable of 10s, is designed for scale planes 12-20lbs and will help with the nose weight you will most certainly need to deal with and best of all is inexpensive.

  Glenn
Title: Re: Power plant help
Post by: sihinch on January 05, 2015, 01:19:44 PM
That's perfect Glenn.  Thank you.


And thanks Michael.
Title: Re: Power plant help
Post by: electroflyer on January 06, 2015, 07:20:14 AM
  Hope that helps. Can you post a picture of the plane?
Title: Re: Power plant help
Post by: sihinch on January 06, 2015, 12:34:18 PM
The model is in the storage "hangar" waiting for assembly, but here is a link to the instructions, just to give you a flavour.  And the pic is from RC groups, but the same model!


http://www.kmp.ca/images/instructions/hurricane_instructions.pdf (http://www.kmp.ca/images/instructions/hurricane_instructions.pdf)

Check out step 34 - anyone have a mental arm I can have?

Title: Re: Power plant help
Post by: Papa on January 06, 2015, 05:18:56 PM
I like step 32, that's more up your alley!


Jack.
Title: Re: Power plant help
Post by: Ededge2002 on January 06, 2015, 11:33:25 PM
I don't understand what kind of battery they are using in #47
Title: Re: Power plant help
Post by: Papa on January 06, 2015, 11:44:30 PM
It's called a "Carbon Footprint".


Was all the rage about forty or fifty years ago! 


Long before your time.


Jack.