As a further to, I have included a plan view with the major dimensions although the moment arm length is not fixed but it is fairly close.

The stab is finished and weighs 2.8 grams and was cut from 6lb, 2.5mm sheet.

Ployd

Kev, don't put thoughts in my head as I have a couple of A/2's that could be converted As to how big? Andy and Phil have flown 60" span models and I have an old A/1 that is bigger than the DD that at a pinch would work in discus mode but that will have to wait.

The wing construction I have used is all based around the use of solid balsa (which means the Dee box is solid) and I have sandwiched carbon between the bottom sheet and solid top section then took a leaf out of George's book and inlayed the top strip of carbon so that it is flush with the top surface. All ribs are capped with 4 thou carbon. More details tomorrow night.

Ployd

Regarding the finger post, it should placed in the Morris Dancer topic, but that is now closed.

The position of the finger post is subject to the size of the fliers hand as the tip sits between the index and third finger up against the web between the 2 fingers so the post will be anywhere between the 2 dimensions I have quoted.
On the MD the post is placed behind an imaginary line drawn at 90 degrees to the CG position and this has not been discussed on the forum but my feeling it should be inline with the CG or as close as possible to it; thoughts anyone ???

The post is reinforced with 2 layers of 1oz glass cloth (top and bottom surfaces) which is glued to the wing before the hole is drilled and it should be a tight fit.

Ployd

Now these are excellent pics and I thank you for them.  My only worry is the carbon on top and under the wing. Given that there will be a certain degree of flex in the wing on the climb - forces excerted, that would give potential for the carbon to split away from the D box - the top would effectively slacken and the bottom tighten. As a suggestion that would increase the rigidity of the spar, make it seperatly and that way, you could wrap kevlar thread round the structure and decrease the slacken on the top of the wing when it flexes.  Then adhere a solid balsa D box to the spar.
Maybe too much FAI in me here as I made em like that - would be interested to see / know from you if you have had any seperation though.
Keep the pics coming please.  They are inspiring.
Kev

Hi All

First another photo to give you an idea of size verses the Morris Dancer, big ain't it  

Kev me old fruit; Bruce is right about the forces involved and the carbon strips are cleaned and epoxied straight to the balsa with weights on top to get a good bond, you need to step back from the FAI thing as the panel sizes are small (see plan) and Kevlar would be an overkill. The bottom carbon spar is locked in place by being the meat in the sandwich, it goes nowhere And there is no Dee box, it's a solid leading edge.

Rey; what I did was took a stick of spruce about 1/4" wide, 1/2 rounded one end then with a steel ruler as a guide, indented the balsa and scored a line the length of the panel light enough for the carbon strip to sit in.

The moment arm dimension is now fixed at 20" and the dihedral on the stab is 1.5" per side. The boom will be a GForce SUL (I have a few of them) as they appear to have adequate stiffness for a modest weight.

With no experience with DLG's other than the short time spent with Len I stuck the finger pin as indicated on the photo and I found no appreciable increase in pressure on the top part, if any thing it equals out once you get twirling.

As of this posting I can now report that the wing is finished ready for gluing to the yet to be made fuselage. It came in at 56.8 grams which is 1/2 gram lighter than the Morris Dancer wing BUT is 36% larger in area which I calculate as being about 20 grams less than equivalent all balsa wing  

Ployd

Ployd , Bruce et al
Thanks for the comments (have now removed my FAI hat and reverted to one that shows more hair than I have). Understand more about the stresses on the airplane and was suprised that they were opposite to what I thought.   - my lack of knowledge showing through and wanting to know so much more than I do already. Keep the pics coming please. All parts of the model which we can all use as references for the future.

My latest suggestion is that you make a box large enough to be transported safely with the models in..... then  ship em all over here to me for extensive testing   heck you cant blame me for trying can you!!!!!  Your workman ship is excellent. One I will aspire to build to.
Kev
spinning himself off to bed to dream of thermals again!

Hi Rey

Initially I was worried about boom flex when considering what type of boom to use (I was going to go with a balsa core carbon covered structure) but wiser heads suggested the use of a carbon boom for durability and being lazy went with the idea. The test flying did not show up any problems in the form of an erratic launch pattern so the idea of foam filling was quietly layed to rest.

Kev; your idea is not as silly as it sounds, no promises

Ployd