1. Hey guyz. Welcome to the All New Phlatforum!



    Sign Up and take a look around. There are so many awesome new features.

    The Phlatforum is a place we can all hang out and

    have fun sharing our RC adventures!

  2. Dismiss Notice
Welcome to The Phlatforum PhlatPrinter III

Lazy Bee

Discussion in 'Single Wing Aircraft Plans' started by 7up, Apr 2, 2010.

  1. 7up

    7up Moderator Staff Member

    Offline
    Messages:
    1,090
    Trophy Points:
    38
    Location:
    Kentucky
    7up, Apr 2, 2010
    #1
  2. kram242

    kram242 Administrator Staff Member

    Offline
    Messages:
    6,311
    Trophy Points:
    13
    Location:
    NJ
    AWESOME!!!
    Thank you Buk :D
    Mark and Trish
     
    kram242, Apr 2, 2010
    #2
  3. Jnida63

    Jnida63 Member

    Offline
    Messages:
    749
    Trophy Points:
    18
    Have you built and flown this yet?
    I was wondering how it flies.
     
    Jnida63, Jun 4, 2010
    #3
  4. 7up

    7up Moderator Staff Member

    Offline
    Messages:
    1,090
    Trophy Points:
    38
    Location:
    Kentucky
    Thanks for asking Jeff. You can see the build here --> viewtopic.php?f=59&t=1844

    As for the maiden, not yet. Unfortunately 30+ years with diabetes has taken its toll on my eyes and has left me blind in one eye and very poor vision in the other. You have heard the expression "Blind in one eye and can't see out of the other"?... That is me, hahaha :lol:

    Anyway, I still enjoy building and doing what I can, but no flying :|

    I have a 16 year old son that I get to try out new builds in the air but he doesn't have much interest in the hobby nor does he have much time to play with his "Old Man's toys". :D

    Anyway that is why I don't post flight reports, however I am going to give FPV a try and see what I can accomplish with that.

    -Buk
     
    7up, Jun 5, 2010
    #4
  5. iflyos

    iflyos Member

    Offline
    Messages:
    306
    Trophy Points:
    16
    Location:
    Pfafftown, NC
    Hey Buk...what do you think about scaling the Bee up to 80 inches?

    I am looking for a cool, IMAA legal foamy to do up as a large electric, and I have always LOVED the Bee series...I have had the 40" balsa Bee, the 60" Giant Bee, the Yard Bee, and the Baby Bee...so I am very familiar with how they fly, and I think a 80" Bee out of foam would BEE a blast....

    Is there a way to scale by percentages in Sketchup that I have yet to find? I know I would have to add a few more of the internal nose stiffeners to make up for the added width...but if I can get the size right...Course, I could just double the size and increase the center of the wing to get to 80" as well That would make the center of the wing 48" by 20 1/8~. I might just do that...

    Tim
    AG4RZ
     
    iflyos, Dec 17, 2010
    #5
  6. 7up

    7up Moderator Staff Member

    Offline
    Messages:
    1,090
    Trophy Points:
    38
    Location:
    Kentucky
    Hi Tim, I'm not sure about the percentage scaling in SU, if it is possible I haven't found it yet. You'll prob just have to do the math.

    Don't forget to resize your slots and tabs when you enlarge it and please post your progress here on the forum. I may build me a big un' for Spring. I love the Bees and this sounds like a great project.

    -Buk
     
    7up, Dec 17, 2010
    #6
  7. iflyos

    iflyos Member

    Offline
    Messages:
    306
    Trophy Points:
    16
    Location:
    Pfafftown, NC
    Will do, Buk...I am working on it right now while I have a few minutes...I am just gonna lengthen the center section to 48" to get the 80" wingspan..I will have to cut that by hand, LOL.

    I don't know how quick I will get it done, but maybe I will have some files to look at by tomorrow night. I will post them in this thread, unless you want me to start a new one...

    I will let you know how it goes!

    Tim
    AG4RZ
     
    iflyos, Dec 17, 2010
    #7
  8. 3DMON

    3DMON Moderator Staff Member

    Offline
    Messages:
    2,380
    Trophy Points:
    38
    Location:
    Sebastian, Florida
    The easiest way to scale in this situation is to use the ruler tool. Use the ruler tool to measure the wingspan one tip to the other on the original model. After your 2nd click on the other side of the wing, type in the wingspan you now desire (80") and press enter. It will scale everything proportionally, so you will need to re-size the tab and slots for the right foam thickness.
     
    3DMON, Dec 17, 2010
    #8
  9. iflyos

    iflyos Member

    Offline
    Messages:
    306
    Trophy Points:
    16
    Location:
    Pfafftown, NC
    I agree Shaun, but due to the size of the lazy bee wing, it is cut in three sections..I suppose, though, I could assemble the three pieces and then use the ruler to size it....

    Yea, the slots and tabs will have to BEE looked at, as well as the dowel rod holes, though I think doubling their size would be smart, since the loads on them will go up quite a bit.

    The real question is what power system? A .40 size electric equivalent or what?

    Tim
    AG4RZ
     
    iflyos, Dec 17, 2010
    #9
  10. 3DMON

    3DMON Moderator Staff Member

    Offline
    Messages:
    2,380
    Trophy Points:
    38
    Location:
    Sebastian, Florida
    If kept light, a .40 size might fit the bill. A 60 size may be a better choice.
     
    3DMON, Dec 17, 2010
    #10
  11. iflyos

    iflyos Member

    Offline
    Messages:
    306
    Trophy Points:
    16
    Location:
    Pfafftown, NC
    OK..so here is my QUICK scale up for the Lazy Bee..Y'all see what you think...

    The parts are arranged to fit on FFF, the wing center will have to be cut by hand, since it is 48" long..that's OK, it is a straight cut.

    I chose to double the rear support dowel mount for the front wing hold down, as well as double the inner support for the rear dowel wing hold down...does that make sense?

    See if I missed anything...I am planning on 1/4" FFF. I think some sort of spar will be in order...maybe even "D" tube the leading edge of the center section of the wing. Kinda like the Mud Duck is done....a spar at 25% of the cord, and the bottom of the wing has a piece from the leading edge that stops at the spar. I need a 4 foot yard stick or similar for the spar...or do ya think it could be done with foam??? I wonder about strength.

    If I can get this worked out quick, I wanna get it flying good to to take to SEFF this coming year. Brandy is giving me some money for CHRISTmas, so I plan to use that for a power system. I have every thing else on hand. (Radio system, servos, etc.) Attached files Lazy Bee.v2-1_80.skp (7.5 MB)Â
     
    iflyos, Dec 17, 2010
    #11
  12. kyyu

    kyyu Active Member

    Offline
    Messages:
    1,183
    Trophy Points:
    36
    Location:
    Maryland
    After the fact, but you can use the "scale" tool to scale by percent (a decimal value, that is). ;)
     
    kyyu, Dec 17, 2010
    #12
  13. iflyos

    iflyos Member

    Offline
    Messages:
    306
    Trophy Points:
    16
    Location:
    Pfafftown, NC
    Thanks, Kwok..I will try that. Always nice to learn a new way to use Sketchup!

    Tim
    AG4RZ
     
    iflyos, Dec 17, 2010
    #13
  14. Evil-Tunes

    Evil-Tunes Moderator Staff Member

    Offline
    Messages:
    659
    Trophy Points:
    16
    Location:
    Southern N.J.
     
    Evil-Tunes, Dec 17, 2010
    #14
  15. Evil-Tunes

    Evil-Tunes Moderator Staff Member

    Offline
    Messages:
    659
    Trophy Points:
    16
    Location:
    Southern N.J.
    Here is a Version I was working on Bumped up to 80% it should work with 1/4" dowles. :) :mrgreen: it would make it around 65" wingspan



    Cheers
    E-T

    Edit: Added extra pieces for mono block Attached files Lazy Bee.E-T 80.skp (7.4 MB)Â [​IMG]
     
    Evil-Tunes, Dec 17, 2010
    #15
  16. 7up

    7up Moderator Staff Member

    Offline
    Messages:
    1,090
    Trophy Points:
    38
    Location:
    Kentucky
    Looks good Tim, just remember that the fuse width increased to 4.5" so you will need to increase the number of mono-block slices (just the center hollowed out ones) unless you can use a thick single piece of EPS or or something, which is what I would have done had I any thicker foam on hand during my build, however the 1/4" slices done the job.
     
    7up, Dec 17, 2010
    #16
  17. Evil-Tunes

    Evil-Tunes Moderator Staff Member

    Offline
    Messages:
    659
    Trophy Points:
    16
    Location:
    Southern N.J.
    Never thaught of that. :idea: :idea:
     
    Evil-Tunes, Dec 17, 2010
    #17
  18. 7up

    7up Moderator Staff Member

    Offline
    Messages:
    1,090
    Trophy Points:
    38
    Location:
    Kentucky
    Oooo, Glen, I like the old style dummy wheels. :D
     
    7up, Dec 17, 2010
    #18
  19. iflyos

    iflyos Member

    Offline
    Messages:
    306
    Trophy Points:
    16
    Location:
    Pfafftown, NC
    You guys work fast!!! Glen, I like the wheels as well!

    Buk, I knew I would forget something...the monoblock!! I need to correct that for sure.

    I assume the battery is planned to go in the monoblock opening? If so, i need to get some measurements on the packs I plan on buying and make adjustments accordingly...

    I guess I need to settle on a power system here QUICK and get it ordered so I will be ready to get this in the air!!!

    Tim
    AG4RZ
     
    iflyos, Dec 17, 2010
    #19
  20. iflyos

    iflyos Member

    Offline
    Messages:
    306
    Trophy Points:
    16
    Location:
    Pfafftown, NC
    What do you guys think about a spar? I am also considering struts, just in case. I know they are not true Lazy Bee, but It might not be a bad idea to have the extra support.

    I figure the full flying rudder will benefit from a carbon fiber rod inlayed in it, and I probably will want to put a spar in the horizontal stab as well. The elevator has one already of course.

    I need to figure out where to split the fuse top and bottom, since they are too long for a piece of FFF.

    I am also wondering if I should sheet or cover the bottom of the wing. Thats ALLOT of undercamber, so there will be allot fo lift, but allot of drag to. I suppose the first one could be not covered/sheeted, then I could try Reynolds wrap to see if I like it.
     
    iflyos, Dec 17, 2010
    #20
  21. 7up

    7up Moderator Staff Member

    Offline
    Messages:
    1,090
    Trophy Points:
    38
    Location:
    Kentucky
    With that much wing, a spar sure would help. I was gonna suggest sheeting the bottom of the wing but you be the judge, I've never flown an undercambered wing that big before.

    Tim, if you need to cut a full 48"sheet, tape a 3-4" piece of scrap foam to each end of your 2'x4' sheet and change your Phlatscript safe cutting area to 48" x 22". That will allow use of your full length sheet. It just gives the drive roller something to grab onto.
     
    7up, Dec 18, 2010
    #21
  22. 3DMON

    3DMON Moderator Staff Member

    Offline
    Messages:
    2,380
    Trophy Points:
    38
    Location:
    Sebastian, Florida
    Make it a flat bottom airfoil and use yardsticks for you spar.
     
    3DMON, Dec 18, 2010
    #22
  23. iflyos

    iflyos Member

    Offline
    Messages:
    306
    Trophy Points:
    16
    Location:
    Pfafftown, NC
    Guys..I am cutting the Fuse sides as I type..this is gonna be one BIG BEE!!!!!!!!

    Glen, the one you scaled up would be just a hair bigger than Andy's original Big Bee. The short wing version was 60 inches, and the extended wing was 72. That ought to make a great flyer as well... Buk, that might be the one you wanna go for!

    Pictures of the fuse sides to follow!
     
    iflyos, Dec 19, 2010
    #23
  24. iflyos

    iflyos Member

    Offline
    Messages:
    306
    Trophy Points:
    16
    Location:
    Pfafftown, NC
    OK Guys...instead of tying up this thread any further, I started a new one here:
    viewtopic.php?f=59&t=2415
    First pics are in it!

    Tim
    AG4RZ
     
    iflyos, Dec 19, 2010
    #24

Share This Page