55% Clipped Wing Monocoupe

Discussion in 'Plane Registry' started by RcPilot82, Nov 19, 2010.

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  1. Jan 18, 2011 #181

    RcPilot82

    RcPilot82

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    Back to the wheel issue... How about Kavan 6"dia. wheels? my buddy has them for his 50% pitts and they are only a few oz each. is 6" too small? They will be inside wheel pants.. I am thinking that may be the best/lightest solution right now.
     
  2. Jan 18, 2011 #182

    Dean Bird

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    How are they holding up for his Pitts?

    I used the super light version on a 35% and they get flat spots really bad.

    They might be worth a try though.
     
  3. Jan 19, 2011 #183

    RcPilot82

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    His pitts is still in the bones right now. I don't think his LG is even on yet. The 6" wheels are inflated not foam so flat spots shouldnt be an issue i'd think. I could be wrong though.
     
  4. Jan 19, 2011 #184

    BRUTUS

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    I think they would be good. The regular Kavan wheels are just plastic- so when they sit in one spot in the heat they cave in on the bottom. I ended up making "chalks" the same radius as the tire. Now they are just out of round:crazy:

    The inflatable ones are pretty nice- and the best part is they slide a little if you get sideways on the runway, instead of ripping out your gear block.
     
  5. Jan 19, 2011 #185

    MODE-1

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    Your main problem with running smaller wheels assuming you buy good quality ones that don't flatten or rip apart is ground clearance for the large wheel pants.

    According to my drawing there is only 1-3/8 clearance at the back of the pants if you off set the wheel axle so it is almost in line with the pants lower edge. This should be enough on a hard surface but may damage the pants in softer ground or if the grass is long.
     
  6. Jan 19, 2011 #186

    RcPilot82

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    Yeah, i noticed that too on the dwg.. all the fields I fly from are grass....more to think about i guess
     
  7. Jan 23, 2011 #187

    RcPilot82

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    I got my lite ply in yesterday and cut out the rest of the ribs. the pics show everything tabbed together PERFECT and done in about 10 minutes. doublesr are now glued in and socket is fitted. time to make progress!
     

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  8. Jan 23, 2011 #188

    RcPilot82

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    few more..
     

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  9. Jan 24, 2011 #189

    BTerry

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    Rob,

    What fuse is sitting on top of the wing?
     
  10. Jan 24, 2011 #190

    RcPilot82

    RcPilot82

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    50CC Edge. one of Petes designs. :)
     
  11. Jan 24, 2011 #191

    BTerry

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    I wondered about that. It looks great!
     
  12. Jan 24, 2011 #192

    Dean Bird

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    Dang, that laser cutter deal is THE BOMB!!
     
  13. Jan 25, 2011 #193

    RcPilot82

    RcPilot82

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    Yep! Gotta love it! I think I'd still be scratching my head on how to properly use it if it wern't for my CNC background though. I engraved and cut the lite ply sheet (24x48) out in about 22 minutes. I would rather go slower and get the most life out of the laser tube than go fast and have to spend more cash on it, Ya know. The consumable parts on this thing aint exactly cheap. :yikes:

    10 mins later I got it all jigged up and perfect:thumbsup:
     
  14. Jan 25, 2011 #194

    GravyGoodness

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    Do you have to use any shield gas (nitrogen?) when you're cutting balsa?
     
  15. Jan 25, 2011 #195

    RcPilot82

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    No Thankfully I don't have to use Nitrogen. I have modified my Air system and changed some things around that really make a difference. I am still tweaking the setup but it works great. I can even cut 6mm depron with just a hint of kerf. Do you have a laser?
     
  16. Jan 27, 2011 #196

    RcPilot82

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    checked one of my reference sites today for the Monocoupe and see that work has started back up. I used this restoration for lots of information on the full scale Mono and to get detailed looks at the design. I thought I'd share the link during this slow progress time. It is a wonderful site and you will notice something new in the pics everytime you look at them, then again that could be just me.

    Enjoy!
    http://gobinkley.com/
     
  17. Jan 27, 2011 #197

    RcPilot82

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    No visual progress tonight, but I did make progress. I finally stopped looking at the wing and started working on it. The wing tube socket and the 3/8" sq. stringers are now glued in place. I tripple checked everything and it was pretty much dead on just by locking the tabs in place. Hopefully tomorrow I will get the LE and TE glued in place and really stiffen up the wing. I may also get to gluing the bottom stringers in place too, who knows.
     
  18. Jan 27, 2011 #198

    GravyGoodness

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    Ours at work is getting delivered next week. 3000w I think, with auto load and unload and all that stuff for production usage. When the salesman came the very first thing I asked him was "can it cut balsa?" Yes it can, with nitrogen, which is plumbed in from outdoors. I'm looking forward to playing with it!
     
  19. Jan 28, 2011 #199

    RcPilot82

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    3kw is a very powerfull laser:yikes:! what is the composition of the laser? Yag,Co2? The different make up of the laser is probally why you would have to use nitrogen. The only think I could see using nitrogen for on mine is for really thick depron. LOL, I bet you will use a power setting of like .3-.8 on that with a fast speed..:willynilly:
     
  20. Jan 29, 2011 #200

    RcPilot82

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    Here are pics of the wing construction so far. I started by adding all the doublers to the proper ribs. Then I fit the wing tube socket and layed out all the ribs. after temprarily attaching the LE and TE as a guide all the ribs were checked for square and the top two spars installed. at this time the wing tube socket was secured as well. Since the wing is built on tabs I could slide the bottom stringers in place and glue them in. I now went back and glued in the LE (note the TE was not glued yet intentionally). the next part as to cut out the lite ply shear webs and plywood packing for the areas required. They were then glued and clamped in place. The LE balsa lengths (long sections) were laminated and clamped as well. Thats as far as I got today. Of course I had to put the wing half on and see how it looks
     

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