Hi Tony.
Please look at the earlier part of this thread for photos taken during the 1st wing build, but I will add a few more as I put the 2nd one together.
As mentioned before, this plan is hand drawn and suffers from several inconsistencies & what I consider to be missing build info.
Thus it is not a good 'first build' model, but looks as if it can be made into a nice model with a little care and ingenuity.
As stated previously, I started my wing construction y laying down a pre-spliced lower main spar over the plan, spaced off the building board using 1/16" balsa spacers to simulate the bottom sheeting to be applied later. I also laid down a 1/4" wide strip of 1/16" balsa immediately forward of the TE section upon which to lay the rear of each rib.
Each rib can now be glued onto the main spar and TE strip after fettling to adjust the spar slot width and also the front edge to ensure a straight line at the front for fitting the dummy LE strip next. The most important ribs to get sorted out before assembly are the ply ones (R1 & R3), a these are harder to adjust in situ. I filled the spaces between each rib at the TE with balsa strip, sanded down flush with the tops of the ribs later.
Once a further 1/16" balsa strip is added, this gives a solid TE structure to fit the TE onto.
With all ribs in position (remember to angle the root rib & to fit a washout wedge under the TE from inner end of aileron), the dummy LE can be butt-jointed to each rib and then the 1/8" balsa root corner gussets added.
A length of 8mm ID carbon tube can now be inserted trough the holes in the root ribs & epoxied into position, followed by addition of the top spar (after fettling the rib slots to suit).
Now add the spruce top drag spar and the additional wedge behind the main spar over the joiner tube. The ribs are only cut for a wedge spar out to R4, but I took mine out to the drag spar intersection to give support for the webs to be fitted out to there. (I also added a cap to the joiner tube and filled the void between joiner tube & top/bottom spars/edges with hardwood/epoxy later, before the area was sealed with the webs).
There are no pre-cut notches for the aileron hinge & LE spars, this this has to be done manually. Bearing in mind the slimness of the ribs at this point, I decided to only fit the upper spars until the area had been sheeted in order to provide support whilst the lower notches were cut later. Hence i measured the spar locations & carefully notched & cut the ribs for the upper hinge spar only, fitted the spar & once secure, cut & fitted the 2 aileron end riblets, tack gluing these in place whilst spaced off the full ribs. Then the intermediate ribs can be very carefully notched and the top aileron LE spar fitted.
At this point, you are about ready to apply the upper sheeting once the dummy LE has been sanded flush to the top of the ribs & other areas prepared.
The rear incidence tube could be fitted before the top sheeting is added, but this can be easily done later before the lower sheeting is fitted. Holes are provide in the root ribs but when fitting, ensure that the incidence rod is parallel to a fitted main joiner in both front-rear & plan views.
The rear tubes could be also fitted using the fuselage as a iig as a single rod is used for each of the main joiner & rear incidence alignments.
A few detailed photos below may also be of use.
- LH wing root spars
- LH wing main joiner tube
- LH Ail hinge spar
- LH Ail spars
- LH wing TE layers