How important is the bias direction when making that patch around the strut fittings? Should the longer side of the patch be biased in the same direction as the original bias or is it not that critical ? How much larger in area should that patch be after covering the area of the fittings. At least 1” or more on all sides?
Excellent point abt not cutting holes for fittings too early. I made that mistake and was forced to cover a misaligned hole. I am amazed @ the new glues and processes since I last covered anything.
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Another great informational video. Dennis is easy to understand and hear, and the videographer is great too, just like being there watching in person. 2 thumbs up !
@@dennisjansen9951, so, is there a gap in the hidden stitches? I'm recovering a Pitts wing and there are so many stitches that some of the ribs need 20 feet of string (hopefully... It's my first time doing this) and I've had to remove an entire row because I ran out with 3 stitches left. We are supposed to have a continuous string from beginning to end. Also, thank you for your reply and your video. I've already used some of your techniques and they helped out a lot.
RR830 no, no need for one continuous string for each rib. Easier to handle a shorter string, rather then 20 ft. Just tie off the string that is too short like in this movie, and start with a new string as you did before. Thanks for you reaction. It’s not me in the movie. I just shortened and categorized the Stewart Systems clips. Easier for me to find the info I need. But somehow it is found by a large amount of people 😂
Unless your STC reads differently, there may be a slight error at about 11:25 in the video. AC 43.13-1B, Section 2-9, paragraph (a), states this: "...Where multiple attachments are in close proximity, such as on a wing rib, continuous reinforcing tape should be installed, extending at least 1 inch past the last attachment at each end..." I'll need to go get your STC manual to read it, as that would take precedence over AC 43.13-1B, but does it state that you only need to extend 1/2" past the last stitch. Not to be overly pedantic here or anything, but that could be a real pain in the butt if a person only extended 1/2" past the last stitch, and then it failed inspection because it wasn't a full inch. I'm not sure any inspector would catch that (my guess is yes), but back in A&P school in the 1980s, we had a couple of ex-military instructors who would absolutely bust you for it. So then you'd have to do a bunch of work to make that right.
Hello, After watching their videos I will use the stewarts system to fill in my J-3, but I have 2 questions: 1.- What is the name of the fabric that is placed on the leading edge? 2.- Is it not necessary to give an epoxy primer to the entire aluminum structure before covering it? Thanks in advance
What I don't see and wished for is the technique of the person assisting with the rib stitching who can pass the needle back hole through the rib and hit the ret
