Russ, The Diehl plans call for putting the bottom skin on first then put on the top skins. Before you do the top skin, put in the inspection ports in the bottom skins. That's a lot easier to do at that stage. If you are careful in cutting out the holes, you can use the cutout piece as a cover plate for the inspection hole. I used a Dremel tool with tiny router bit and a router adapter taped to a hole cutting guide. Lowes has all the parts. You will need inspection holes big enough to get one hand and arm through. Put them everywhere there is a nut or bolt head or vent pipe for a fuel cell. I have 26 openings on the bottom of my wings and everyone has a needed purpose. Don't worry over the exact dimension of the airfoil shape of the ribs. When you get them glued between the spars, you will have to cut them down as much as 1/4-inch to allow for the varying thickness of the Diehl skins. Then you use lots of VE flox to fill the gaps. When the top skin goes on, you can reach in through the inspection ports and make sure the flox is finger-filleted in all the joints. That is especially important to close leaks on the blind side of the fuel cells. (Been there, done that.) You vary the gel time for the vinylester by adjusting the amount of catalyst you use. The higher the temperature the faster it goes off. The instruction ratio calls for 4 cc catalyst to 8 oz resin. You can use 1 cc per 8 oz and it still works ok. Do use a calibrated syringe for the catalyst.
Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA smw...@md.metrocast.net ------------------------------------------------------------------ Hi Russ, I used Dan's skins on my KR2 some years ago and was fortunate in having met Dan at a gathering. I think I was the first to use them in the UK ,and had no problems except that the rib cut out markings didn't correspond somehow . I contacted Dan and he reassured me that my markings were not accurate ( it was in the '90's and I've forgotten how exactly-but I'll look up my notes if you can't get better advice). One thing I do remember is how fast vinylester goes off , so you have to get a reliable pal and rehearse the procedure. I also had to open inspection panels in the lower skins to satisfy our inspection authorities who would reinvent the wheel if it hadn't been made in Birmingham! Cheers, Mac ex KR2 G-BVZJ On Mon, Nov 21, 2011 at 3:41 PM, Russell Barmett <rbarn...@ipa.net> wrote: > > Is there anyone that is getting ready to do Diehl wing skins on thier > KR? > I have a stock KR and will be attempting to do the wing skins soon. I have > already modified the spar to the 4-15/16" at the outboard end. I purchased > the skins and ribs from a builder a lot of years ago and the ribs were > already cut from the sheet. > However how do i verify that the ribs are correct and as accurate as they > need to be? What is the spacing for the ribs? and i need some information > on the spar extension. > I would be willing to help anyone that is getting ready to do this in > my area > I am in SW MO. > My goal is to fly to MVN Sept 2012 > > Forgive me if i make a mistake on the KRlist ( I am computer > challanged) > > Thanks in advance for the help. > > Russ Barnett > rbarn...@ipa.net > N8227 >