Flabel has the best section on tension clips that I know of, but it's based on calculated Fby. Don't know of any testing to yield that would have generated tables like you mention.
I remember ugly discussions when the shop wanted to make the screw holes larger and go wiyj floating nutplates on a gen av prop spinner. They claimed it would make it easier to assemble, which it did. Then we started getting complaints about failures. Turned out that less than half of the...
Does anybody have a lead on 8-32 flush head screws with painted heads? There are boeing specs, but they show zero stock.
I may end up using NAS517 and painting the head myself.
Ditto on Abaris. Very good training - start with the laminated plate course.
The Boeing training is a little wishy washy. Keep in mind it's designed for airline repair engineers and light on the design side.
As I understand your question, you want to know how to incorporate load limiters in your calculations for strap tiedowns. The short answer is you don't.
The g factors don't change, load stays the same (ie you can't exceed the floor capability of the aircraft), straps stay the same and the...
I've used it quire a bit in the design of cargo handling components. They are designed for ultimate ground and flight loads and the extra .15 gives a little more cushion especially when you get into plastic bending.
On second thought, you need to be very careful about sanding/blending around fastener heads. OEM's don't want you grinding on fasteners. In a service environment, if you needed to blend around fasteners, you would remove the fastener first, blend and then install an acceptable replacement...
Kirby -
My experience with MRAS has always been positive. I'd call and ask to speak to one of their repair engineers, even if you have to lie about your question. Those guys have always been extremely helpful.
Lots of variation here. For a small, unpressurized airplane, I'd say about 1/16" would be the max. Depends on what's behind the butt splice - sheetmetal strap or frame - and how the load is transmitted across the joint.
Sounds like a crappy design to me. Rely on a set screw to maintain lock of the lever to the shaft?
The later fuel valves have a half round/half square so that there is a positive lock with the handle/lever. They also have a nylon/delrin or something bearing to take care of the lube problem.
Wouldn't be the first time somebody switched to an empty tank. People sometimes jump in and go w/o checking the go juice.
Interested in seeing what the investigation turns up.
