Jump to content

Dragonfly Mailing List

Hidden Members
 View Profile  See their activity

  • Posts

    1,356

  • Joined

  • Last visited

 Content Type 

Posts posted by Dragonfly Mailing List

    Re: [Extern]:Re: [DragonflyList] Tail wheel lift off speed

    in Dragonfly Mailing List (read-only)

    Posted

    Charlie, Fredd, Chris,

    Thank you for your help; it is much appreciated! Nice video Chris! 

    Regards,
    Mark
    Van: main@DragonflyList.groups.io <main@DragonflyList.groups.io> namens Dorothea Keats via groups.io <dkeats@...>
    Verzonden: donderdag 21 juli 2022 16:06
    Aan: main@DragonflyList.groups.io <main@DragonflyList.groups.io>
    Onderwerp: [Extern]:Re: [DragonflyList] Tail wheel lift off speed
     
    LET OP: Deze e-mail komt van een afzender buiten Inholland. Wees voorzichtig met het klikken op links en het openen van bijlagen.
    ATTENTION: This email is from a sender outside Inholland. Please be careful when opening links or attachments.


      Mark----------  As others have said the tail wheel lift depends on
    aileron setting and and CG. My airplane likes an aft CG.  My tail  lifts
    about 50 and then I lift off around 70 and keep it in ground effect
    until 110 and then climb out.

      If you do get it in the air above the runway, do not climb out until
    you get some speed.

    The elevator is very sensitive so be aware of PIO.  When you do get in
    the air, do not come back to the runway.  Fly around and get used to the
    airplane. Nothing worse than trying to land a new airplane five minutes
    after your first takeoff.

      I usually try to fly around for about an hr before coming back. Be
    ready to make another try on landing.

      Remember the old expression that any landing you walk away from is a
    good one. Any landing where you can reuse the airplane is excellent.

      I made a little video years ago explaining how I fly. It may give you
    a bit of an idea what to expect.

      youtube  " Dragonfly Geradlton"

    You can check out " Q200 test flight" also.   Similar, but faster.  Have
    fun-------------  Chris


    --
    This email has been checked for viruses by Avast antivirus software.
    https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.avast.com%2Fantivirus&amp;data=05%7C01%7Cmark.ommert%40inholland.nl%7Cc649f368d6214977433108da6b223e1d%7Cad78d191104443038212b6f4dd7874bc%7C0%7C0%7C637940092057692236%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=jWq7oLsC7wgzrWtYCft8qRAAvTCDnQNv6n2PCFHSYRI%3D&amp;reserved=0






    View the full article

    Re: New Member

    in Dragonfly Mailing List (read-only)

    Posted

    Thanks for letting me join. I have loved the DF since I first saw the prototype in a magazine.  I bought one of the first set of plans after Viking bought the rights to the craft. I have been to most of the flyins when they where in Kansas and Missouri. Life and family has prevented me from building one. (Not complaining at all). Still would love to get started on a project one day.

    View the full article

    Re: Tail wheel lift off speed

    in Dragonfly Mailing List (read-only)

    Posted

    Mark----------  As others have said the tail wheel lift depends on aileron setting and and CG. My airplane likes an aft CG.  My tail  lifts about 50 and then I lift off around 70 and keep it in ground effect until 110 and then climb out.

     If you do get it in the air above the runway, do not climb out until you get some speed.

    The elevator is very sensitive so be aware of PIO.  When you do get in the air, do not come back to the runway.  Fly around and get used to the airplane. Nothing worse than trying to land a new airplane five minutes after your first takeoff.

     I usually try to fly around for about an hr before coming back. Be ready to make another try on landing.

     Remember the old expression that any landing you walk away from is a good one. Any landing where you can reuse the airplane is excellent.

     I made a little video years ago explaining how I fly. It may give you a bit of an idea what to expect.

     youtube  " Dragonfly Geradlton"

    You can check out " Q200 test flight" also.   Similar, but faster.  Have fun-------------  Chris


    --
    This email has been checked for viruses by Avast antivirus software.
    https://www.avast.com/antivirus

    View the full article

    Re: Tail wheel lift off speed

    in Dragonfly Mailing List (read-only)

    Posted

    Mark,


    Depending on the wing incidence and the ailerons setting. The tail should lift around 45 mph. Hold the stick all the way forward to prevent inadvertently taking off. 

    When you can taxi straight at 35-40 with the tail on the ground the next step is to get the tail up and then slow down and get the tail back on the ground without swerving all over the runway.

    Practice a lot. You will need good taxi skills right after landing.

    Regards,

    View the full article

    Dragonfly MK II performance

    in Dragonfly Mailing List (read-only)

    Posted

    Hi Folks,

    I’m looking for some performance data for the Mark II Dragonfly with 100hp at gross weight at sea level. In particular things like:

    Takeoff distance -

    Climb rate -

    Maximum speed in level flight -

    Cruise speed at 75% power -

    Landing distance -

    If anyone has data like that it would be helpful in our project. Along those lines, if anyone has a good number for flat plate drag area for the Dragonfly MK II. That would also be useful.

    Thanks

    Will

    View the full article

    Re: Charts/ Drawings

    in Dragonfly Mailing List (read-only)

    Posted

    I made a mold directly off of a gear leg in case I may need it in the future. This was of the original MK 11 legs that fitted into sockets in the canard. If required I could measure it up and create a drawing. The layup on my original gear legs looked like a lot of individual rovings in a trough with epoxy. I think that the fibreglass Hoop gear or steel or Aluminium gear  legs mounted in the fuselage is a much improved installation . There a many details on these options in past DBFN issues. Many thanks to Bill for uploading the drawings. If all the flying surface airfoils on the Dragonfly had a digital database (inc fin, rudder, elevators & ailerons) and its relationship to the level and waterlines that would be an advantage for new constructors as I understood the drawings were all hand drafted and the Airfoil profiles not identified on the drawings (certainly not on my set). There has been suggestion as to what they were close to .The Mark 11 if I recall correctly had a canard span increase of 12" and each elevator by 17".
     Regards,
    Bruce

    View the full article

    Re: Charts/ Drawings

    in Dragonfly Mailing List (read-only)

    Posted

    There never was drawings for the legs. They were purchased items from HAPI.


    I have two raw moldings in my possession. They got a bad reputation because builders improperly laminated the bidirectional torsion layers on. N157JG’s legs were destroyed in 10” of re-frozen snow with 900 plus hours of service. I damaged the right leg in 97 time frame but did not know it. The snow finished off the compression side and the remaining fiber snapped in tension.

    I have obtained additional info on hoop gear geometry but have not looked at it in depth.

    Regards,

    Charlie a.k.a. One Sky Dog 
    N187JG Mk-II Dragonfly/ 3.0l Corvair





    View the full article

The Canard Zone

×
×
  • Create New...

Important Information

  I accept