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Ultralight or Part 103 trikes

Ultralight or Part 103 trikes

group is for discussion of part 103 trikes or flying part 103 trikes

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Ultralight or Part 103 trikes

Ultralight or Part 103 trikes

group is for discussion of part 103 trikes or flying part 103 trikes

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  • cburg
    cburg replied on the discussion topic Over and under engineering
    Great it's a 24 lb allowance, so you'll get around 6 pounds bonus. So the magic number is 278... view reply
  • ULtrikepilot
    ULtrikepilot replied on the discussion topic Over and under engineering
    Yes, I have a Second Chantz system that John Dunham designed according to my specifications. It weighs 18 or 19 lbs and I think there is an allocation of about 23 lbs. view reply
  • cburg
    cburg replied on the discussion topic Over and under engineering
    I should point out that I fully expect to have to fly a part 103 helicopter eventually, because unlike all other aircraft categories, there is no way out of having a medical. view reply
  • cburg
    cburg replied on the discussion topic Over and under engineering
    You are right when it comes to part 103 trikes.  I'd just take it right up to 254 with whatever I could. I like part 103, but sold my 103 trike last year and will probably never own another.  There is simply no reason for me ever... view reply
  • ULtrikepilot
    ULtrikepilot replied on the discussion topic Over and under engineering
    Cburg,  Really appreciate your contributions to this thread!  I too have been swamped with work and do not get to AT as often as I'd like.  My personal answer to one of your questions is: No I have not been using any back up... view reply
  • white eagle
    white eagle replied on the discussion topic Over and under engineering
    c burg  i too started flying hang gliders in 79 but i sure dont have the grey matter you have buddy. i havnt been able to post to much on this because of work but just wanted to let you know how much i appreciate .sharing of knowlege and... view reply
  • cburg
    cburg replied on the discussion topic Over and under engineering
    Another related study: http://www.hgfa.asn.au/resources/GrattonNewman_TumbleResistance.PDF Quote: Recent accident investigation work has also shown a new mechanism of tumble entry, through partial failure of the A-frame structure and... view reply
  • cburg
    cburg replied on the discussion topic Over and under engineering
    One thing that’s clear from the above study is that the odds of survival are much better if you stay attached to the wing.  Of course a maple-leaf decent is more survivable than a tumbling decent. Shoulder harness airbags some... view reply
  • cburg
    cburg replied on the discussion topic Over and under engineering
    Here is an argument against base tube safety cables and for nose strut safety cables: http://static-2.socialgo.com/cache/631/assets/files/4df20ff2ab6e1-631-WhipStall.pdf “Sycamoring failure mode. It has been recorded in a number... view reply
  • cburg
    cburg replied on the discussion topic Over and under engineering
    Interesting...not a single comment on safety cables.  I’m surprised. OK how about this…Tumbles. What pilots are taught about tumbles these days is a lot different than what we taught and were taught decades ago.  In... view reply
  • cburg
    cburg replied on the discussion topic Over and under engineering
    Safety cables.  Do you use them?  There are four main types in use…some employee all…some employ none…some employ some. Base tube cable, mast cable, nose strut cable, and hang-point attachment cable.  Some... view reply
  • ULtrikepilot
    ULtrikepilot added a new discussion topic Over and under engineering
    Recent discussion on a tragic accident thread on CSI has taken a tangent on bolt sizes and strength.  This spurred me to start this thread to discuss over/under engineering related to trikes. NO WHERE (let me repeat, NO WHERE) is the balance...
  • Ken
    Ken bookmarked New altitude record in electric trike!
    Glad to see some progress in the electric trike arena. South Carolina pilot sets the bar (not too high) On June 21, with scattered clouds overhead and a crowd gathered on and around Greenville Downtown Airport in Greenville, S.C., Gary Davis...
    http://www.aopa.org/News-and-Video/All-News/2014/June/24/electric-trike-record.aspx
  • XC Triker
    XC Triker commented on a video Hang glider E-Help motor harness
    Nice !  When I used to have a Mosquito NRG FLPHG (like @GarrettSpeeter ) I practically never shut that tiny 2-stroke off (rather kept it at idle while soaring, as I was never confident it would start right back up when I NEEDED it.)  With...
  • ULtrikepilot
    ULtrikepilot added a video Hang glider E-Help motor harness
    Now this looks to be a very simple system. The pilot is still working on the development. Probably not a huge amount of thrust or extended time at high power but maybe a nice way to get up to supplement some natural ridge lift or thermal lift....
    Comments
    • XC Triker
      XC Triker

      Nice !  When I used to have a Mosquito NRG FLPHG (like @GarrettSpeeter ) I practically never shut that tiny 2-stroke off (rather kept it at idle while soaring, as I was never confident it would start right back up when I NEEDED it.)  With electric, I'd be a lot more confident it would fire up immediately.

       

      From his YouTube site:

          it says this was Wanaka, New Zealand Oct/Nov 2013.  (I thought for a second it was Point of the Mountain UT.)

          Turnigy Rotomax 150    [I guess that's the motor?]

           Turnigy 250 amp sec    [I guess that's the battery?]

           Turnigy nano tech 8ah 6s x 6 - 12s3p     [individual battery cells ?  or the controller?]

           Biela 26x14 3 blade prop

           This setup runs 220amps, 6000 rpm and 29kg static thrust @ full power [5 minutes till flat]

       

      More from his comments section (He's Callum22):

       

       
       
      With the geared motor version nothing will change really it will still look like this one, maybe a little skinner at the motor end (foot end). It will be turning a bigger prop yes- 35" but its not too much bigger than whats on there- 26-28" plus it will fold
       

       
       
      Hi Matt, first of all this isnt my idea or design, Ive copied and modified from AcrodesignerLNSNI. Ive made this to open up soaring sites that have no takeoff or access. It isnt designed to climb up high with....yet. At the moment the climb is about 300fpm, so at full power you will drain the batteries in about 5-6mins. Im working on a more powerful/ efficient version which might be better for climbing high or longer duration cruising.
       

       
       
      The new version im working on gets away from direct drive and has a inline planetary gearbox with inrunner motor that can swing a bigger folding prop, which will be a lot more efficient. This version is OK but not as good as i can get it...
       

       
       
      Hi Lei Yu, Thanks. The charger i use is a FMA Direct PowerLab 6 For high power charging i do charge outside just with an extension cord. The charger runs off 12-30vdc so has a dc power supply. The 3 blade prop is really just a personal thing more than anything, its quieter than a 2 blade and i can use a slightly smaller diameter for the same output. A 28-30" x 12-13" 2 blade will be fine, i used a 28x12 3 blade it was 240amps @ full power... but i broke it.
       

       
       
      Its fine but at bit longer would help,but its not built for this glider im only doing the testing on it.
       

       
       
      This is a great direction. Less bulk and complexity. Use existing harness. What is your climb rate ? How high can you get on a charge ? How long on a charge ? Will you sell these ?
  • Ken
    Ken bookmarked Electric Sports weight-shift trike impresses
    Found this article - its a couple of years old now. Wonder if they have made any progress?   June 17, 2012 by Dan Johnson Leave a Comment AERO, held each year in the south of Germany, is one of those shows that...
    http://generalaviationnews.com/2012/06/17/electric-sports-weight-shift-trike-impresses/
  • XC Triker
    XC Triker commented on a page titled Tandem HG Pilot who's Passenger Fell to her Death (not hooked in) pleads Guilty.
    Lawyer gone wild--  suing the instructor & the sport’s governing associations Hang gliding is unsafe.  You got a problem with that? The family of a 28-year-old Mexican woman killed while tandem hang-gliding is suing the...
  • XC Triker
    XC Triker commented on a video Electric Trike?
    Hey, sorry I haven't posted much lately-- I'm out of town (not flying :(   but having fun).  In fact, I'm up near Doug from Boulder Creek's / Watsonville (who also happens to be a great mechanic & A&P)....
  • XC Triker
    XC Triker commented on the album Joe's NW Maverick II
    Nice photos! Hey, I was thinking about a 3-axis friend who broke his plane again landing on his nose-wheel-- that's another safety feature of a trike, since the carriage swings forward, the nose wheel is always up, it would be really hard to land...
    FD fly-in 2013 Mav1.JPG
  • ULtrikepilot
    ULtrikepilot commented on the album Joe's NW Maverick II
    Thanks Alex and W.E.  Hey, W.E I completely agree with you, FAR 103 ROCKS!  BTW, 2 of those pictures were taken in June of last year at the Father's Day fly-in so yes plenty of green grass there.  Starting to see some green around...
    FD fly-in 2013 Mav1.JPG