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 6 of 6

  1. #1

    Join Date
    May 2009
    Location
    clinton, UT
    Posts
    1
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    trex 450 with 4 or 5 blade head



    Hey guys, I am trying to make my T-rex 450 a Scale MD500E. I built the fuse and flys great with stock flybar head. Can I put a multi blade head on with out buying heli command or other stabilization system? I have been flying for 4 years now, and i keep hearing that I will need a alot of extra electronics for a multi blade head. thank for your help.


  2. #2

    Join Date
    Apr 2007
    Location
    Schenectady, NY
    Posts
    46
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: trex 450 with 4 or 5 blade head



    Some will tell you that you Don't need any extra stuff



    I personally Pulled the Head right back off my Mini Titan because the Extra two blades made the heli respond like it was in slow motion



    it's all prefrence I guess



    I have one for you if you want it, as I won't be putting it back on the Heli it's brand New and installs in 10 Minutes



    RichardDotterer@AOL.com


  3. #3

    Join Date
    Jun 2006
    Location
    Berne, NY
    Posts
    1,013
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: trex 450 with 4 or 5 blade head



    A friend of mine that flies scale has been flying a 4 blade head on his trex 450 for over a year now with no extra electronics. He added some wieght to the nose to help with it ballooning in forward flight thats all.



     

    You Had me at Hover!

  4. #4

    Join Date
    Aug 2006
    Location
    Lacey, WA
    Posts
    43
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: trex 450 with 4 or 5 blade head

    That ballooning up on forward flight that you refered to is an aerodymanic indicator that you're outflying your rotor system. When you fly to fast you will reach retreating blade stall (look it up if you need to) and your helicopter will loose lift on the retreating blade side of the rotor system. This section stalls. (hence retreating blade stall) At this point your rotor section does not produce lift. Due to gyroscopic procession, this will take effect 90 degrees later in the direction the rotor system travels, and your helicopter will pitch up. So, you fly to fast, the retreating blade looses lift approximately perpendicular to the centerline of the aircraft, the stall effect is felt in the aft section of the rotor system due to gyroscopic procession, the helicopter pitches up and you loose speed. If you keep flying this fast your aircraft will continue exhibiting this trait.

    Confusing? Absolutely. Helicopters are not airplanes. If they were, the pitch, roll, and yawinputs would be called pitch, aileron, and rudder inputs. A common misconception here when airplane guys talk about helicopters.

    ORIGINAL: ea01bg



    A friend of mine that flies scale has been flying a 4 blade head on his trex 450 for over a year now with no extra electronics. He added some wieght to the nose to help with it ballooning in forward flight thats all.




  5. #5

    Join Date
    Dec 2008
    Location
    Vandergrift, PA
    Posts
    9
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: trex 450 with 4 or 5 blade head

    Excellent explanation of a confusing phenomenon, Bxcar. Think you throughly frightened the guy now, but I liked yor little piece.

  6. #6

    Join Date
    Jun 2006
    Location
    Berne, NY
    Posts
    1,013
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: trex 450 with 4 or 5 blade head



    Thanks for the info. I am curiouse why he added the weight now he flies scale, I've rearly seen him going very fast with it.

    You Had me at Hover!


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 10:06 AM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.