Powering a 2 meter?    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version

All Forums >> RC Airplanes >> RC Gliders, Sailplanes and Slope Soaring >> Powering a 2 meter?
Page: [1]

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
Powering a 2 meter? - 5/12/2012 5:45 PM   
wsmalley



Posts: 1078
Score: 100
Joined: 2/16/2002
Last Login: 4/3/2013
From: Monterey, TN, USA
Status: offline 		I dug out my old Spectre 2 meter glider planning to repower with a brushless/lipo combo. I had a geared brushed motor way back with a bunch of nicads. It would barely climb and didn't get enough altitude to stay aloft very long. Found I have a Turnigy 3530 outrunner, 1400kv. My question is whether or not a lower kv motor swinging a big prop is better than a 1400 swinging a 9, or 10" prop going faster. Which would provide more thrust? Bill

_____________________________

If I die, and I have the most toys, what do I win?

Hide Signatures
       Post #: 1

RE: Powering a 2 meter? - 5/12/2012 8:57 PM   
da Rock



Posts: 10888
Score: 265
Joined: 10/11/2005
Last Login: 5/25/2013
From: western, NC, USA
Status: offline 		The thing that makes that a harder question to answer is the model has a lot to do with the answer and it depends on the electric motor's designed purpose.

We need to take a look at what the mfg suggests for the right prop for that motor when it's pulling a glider aloft. be right back.......

_____________________________

Good flying wit ya today

Hide Signatures

(in reply to wsmalley)
       Post #: 2

RE: Powering a 2 meter? - 5/13/2012 12:48 AM   
BMatthews



Posts: 11656
Score: 247
Joined: 10/4/2002
Last Login: 5/26/2013
From: Chilliwack, BC, CANADA
Status: offline 		All else being equal the bigger and slower prop will do better for climbing. But at the same time your motor is rated at a whopping 470 watts maximum output. That is WAYYYYYY more than you require for your Spirit to do well. So yeah, proping it with a finer pitch 9 to 10 inch folding prop and matching it with a battery pack which only lightly loads down to around a 200 to 250 watt performance level is going to make your new and lighter Spirit fly like a power model. At the same time your final flying weight will likely come out at anywhere from 10 to 14 oz lighter than it was before. And because your new flight power system is lighter take pains to pack all the heavy stuff as far forward as you can to reduce the amount of nose weight it will end up requiring.

_____________________________

Witty saying to be plagarized shortly.....

Hide Signatures

(in reply to da Rock)
       Post #: 3

Page:   [1]
All Forums >> RC Airplanes >> RC Gliders, Sailplanes and Slope Soaring >> Powering a 2 meter?
Page: [1]





Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


0.234RCU1