I am building a Highlander with quick build wings. I scanned this forum for info on any load testing that has been done and was surprised not to find anything. It appears this is a requirement in other countries but doesnt appear to be so here. I am particularly intetested in finding any data on wing, spar, or strut bracket load tests or how people have done them.
What got me thinking abput this was the Nicopress thread. Having made a few I thought the assembly looked rock solid but then i read the thread that talked about how they can fail, particularly one that failed on a maiden flight.
Any info would be greatly appreciated.
Ed
Wing Load Test
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Wing Load Test
Ed Whitaker
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What do you get when things don't go as planned? Experience.
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What do you get when things don't go as planned? Experience.
- SheepdogRD
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Re: Wing Load Test
Load testing was done by the factory before the design was approved for production, so the factory would be your information resource. I haven't heard of anyone load testing their kit.
Richard Holtz
Highlander N570L -- Ms. Tonka -- in gestation
If just enough is really good, then too much ought to be perfect.
Highlander N570L -- Ms. Tonka -- in gestation
If just enough is really good, then too much ought to be perfect.
- BDA
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Re: Wing Load Test
I would not do a full load test on something I was going to fly.
The folks at the factory do have all that info anyway. Very interesting!!
The folks at the factory do have all that info anyway. Very interesting!!
SuperStol XL Alaskan With Titan 340
N331AK. Shawn Taplin
Wing extensions,Symetrical Airfoil tail ribs (NACA 21)
Mods in progress: Heavier struts, Double slotted flaps
Goal: 15mph no wind
N331AK. Shawn Taplin
Wing extensions,Symetrical Airfoil tail ribs (NACA 21)
Mods in progress: Heavier struts, Double slotted flaps
Goal: 15mph no wind
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Re: Wing Load Test
I guess it depends on how one defines full load. There is typical operating load, design load, and failure load. The latter two should be significantly greater than the operating load. I do not advocate anyone attempt testing even the design load, which is likely 3.8-4G.
What i came across was required testing of wing loading to 1g in some other countries. Basically you flip plane over and load wings with sand bags. Which seems like a lot of work.
Sheepdog is correct that factory has this data. I just would like to know what it is. I am confident it is a well proven design.
FWIW, i found a video test of two rivets to a shear strength of 700lbs. If i were computer savvy i would post it. But a search of that term will bring it up.
What i came across was required testing of wing loading to 1g in some other countries. Basically you flip plane over and load wings with sand bags. Which seems like a lot of work.
Sheepdog is correct that factory has this data. I just would like to know what it is. I am confident it is a well proven design.
FWIW, i found a video test of two rivets to a shear strength of 700lbs. If i were computer savvy i would post it. But a search of that term will bring it up.
Ed Whitaker
Humble Novice
What do you get when things don't go as planned? Experience.
Humble Novice
What do you get when things don't go as planned? Experience.
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Re: Wing Load Test
Here is a video on the pop rivet shear strength test. I hope this works, I’ve never tried this before. You should be able to click or touch the below link, it will indicate it is a link with a blue underline. I tested it in the preview and it did work for me.
If it doesn’t play, “Copy” the below link and then “Paste” it into a You Tube search and it should work.
https://youtu.be/MAVYtx5dvUA
If it doesn’t play, “Copy” the below link and then “Paste” it into a You Tube search and it should work.
https://youtu.be/MAVYtx5dvUA
AV8R Paul
Certified Light Sport Repairman LSRM-A
Certified Light Sport Repairman LSRM-A
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Re: Wing Load Test
Factory says wing/strut tested to 5g with substantial bending but returned to proper shape.
Ed Whitaker
Humble Novice
What do you get when things don't go as planned? Experience.
Humble Novice
What do you get when things don't go as planned? Experience.