New scratch built Primary Force

[Mike Griffin]

I built this one using a Millennium  fully planked wing.  Weight as shown is 18.5 ounces.  Will be using a Randy Smith Aero Tiger 36.

Mike

[Glenn (Gravitywell) Reach]

WOOZERS!  Now thats bright....and beautiful.

[Paul Taylor]

That looks great Mike!!!

[Jim Kraft]

OOOOH! I like it. Great colors and a simple elegant trim. Should be extremely good on that engine.

[Joseph Lijoi]

Nice plane.  Do you have plans?

[Mike Griffin]

Thanks for the kind words guys and Joseph yes I do have the plans ...Just got in from the Baton Rouge contest and had a great time.  Going back tomorrow.  I am taking a lot of pictures to post for you all.

Mike

[builditright]

Wow! that's a bright green Mike, better break out the sun glasses 

[Mike Griffin]

Wow! that's a bright green Mike, better break out the sun glasses 

Hey Walter....just wanted to make sure everyone could see it.  HA HA>...

MNIke

[Joseph Lijoi]

Thanks for the kind words guys and Joseph yes I do have the plans ...Just got in from the Baton Rouge contest and had a great time.  Going back tomorrow.  I am taking a lot of pictures to post for you all.

Mike

I would like to get those plans if I could.  What is a Millenium wing?

[Allen Brickhaus]

"I need my sunglasses, eh"

[Mike Griffin]

I would like to get those plans if I could.  What is a Millenium wing?

Joesph Tom Morris is probably the expert on Millennium wings but I will do my best to explain it.  It is a wing constructed with rib strips instead of full ribs with a spar that is slotted to accept the 1/4" rib strips.  There is a single spar (usually) I/8' thick that runs the entire length of the wing and tapers from the root rib to the tip rib.  The bellcrank is located in the center of the spar.  The leading edge is constructed from two pieces of 1/4 x 1/2 balsa sticks with a piece of 1/16 x 1/2 sandwiched between the pieces.  The trailing edge is constructed the same way only using two pieces of 1/4" square.  The front and back edges of the rib strip rest on the shelf of 1/16th that is sandwiched.  The wing is built in jig blocks that are cut especially to hold the leading and trailing edges.

[john e. holliday]

And if they ever start laser cutting the strip ribs, that will make the Millineum Wing and I-Beam so much easier.   Just need to cut to length.

[Mike Griffin]

And if they ever start laser cutting the strip ribs, that will make the Millineum Wing and I-Beam so much easier.   Just need to cut to length.

I have been talking to Eric Rule about that Doc.  Will let you know what we come up with.

Mike

[John Miller]

It's easy to have the strip ribs laser cut, I've had it done, but, the problem is the additional cost involved in cutting all those 100 or so strip ribs. It adds up fast, and in my case made a short kit cost more than the customer would pay for. Now days, I include a plywood strip rib cutting guide. I can set down, turn on the TV and easily cut all the ribs needed without too much trouble.

You might get a better deal on laser cutting time though, so it won't hurt to ask.

[Brett Buck]

And if they ever start laser cutting the strip ribs, that will make the Millineum Wing and I-Beam so much easier.   Just need to cut to length.

   I am not a huge fan of the wing design, but one of the best features (just like the original I-beam) is that the ribs are so easy. I haven't done one in 30 years, but cutting out the rib blanks was about as simple as it gets, zip-zip-zip, can probably do one every 5 seconds. It hardly seems worth even firing up the laser for.

    Brett

[Joseph Lijoi]

   I am not a huge fan of the wing design, but one of the best features (just like the original I-beam) is that the ribs are so easy. I haven't done one in 30 years, but cutting out the rib blanks was about as simple as it gets, zip-zip-zip, can probably do one every 5 seconds. It hardly seems worth even firing up the laser for.

    Brett

You might consider a lazer cut kit of that tool Werewage uses in "How to build I beam wings",

[Avaiojet]

Nice looking wing and nice work! Kudod.

I'm building a model now, using a modified Ares wing.

Similar but different. I like the total sheeted wing skin thing. Is this what many of the stunt guys are doing now?

The only issue I see, is the absence, or non use of, an adjustable leadout gizmo. May not even be an issue?

You would have to cut a slice in the "I" beam for the front lead out to travel with the adjustment travel front to rear or back.

Anybody using that thing? I purchased one just to see how it was made. I guess you glue it to the last wing rib at the tip.

Are you confident without one? or do you have something up your sleeve?

CB

[Mike Griffin]

CB

There is an adjustable leadout guide installed, you just cant see it in the picture.  As far as fully sheeted wings, that is a personal preference.  I happen to think it adds strength to the wing. Others may argue differently.  I have nothing "up my sleeve"

 

Mike

[Dennis Moritz]

The PF ARF has swept back leading edge and swept forward trailing edge. Has this been changed?