Register

If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Results 1 to 3 of 3

  1. #1

    Join Date
    Feb 2002
    Location
    Monterey, TN
    Posts
    1,080
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    Powering a 2 meter?

    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?

  2. #2
    Moderator da Rock's Avatar
    Join Date
    Oct 2005
    Location
    Near Pfafftown NC
    Posts
    11,125
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Powering a 2 meter?

    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

  3. #3
    Moderator BMatthews's Avatar
    Join Date
    Oct 2002
    Location
    Chilliwack, BC, CANADA
    Posts
    11,972
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Powering a 2 meter?

    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.....


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT -6. The time now is 12:21 AM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.