Knotty Problem
Do the tech manuals detail the required knot to be used? Should be OK, has gaffa tape.
https://cimg6.ibsrv.net/gimg/pprune....b4ec168e11.jpg |
About 90 kts.... that 100 mph tape.
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Isn't that strut in tension when airborne? The only worry then is the weight of the wing on the ground, so that gaffa tape should be fine...
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Originally Posted by KRviator
(Post 11026577)
Isn't that strut in tension when airborne? The only worry then is the weight of the wing on the ground, so that gaffa tape should be fine...
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A draggy bit of wood that. And that’s knotty as well...wood not be happy about it’s structural integrity, either
Good Q... how was it bent ? |
What could possibly go wrong....
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Aside from the extra parasitic drag and the fact that the wing is hanging lower, it would probably be airworthy.
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An oldie but a goodie!
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At least they remembered to chock the wheels.
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I'm guessing someone tried either to lift the aircraft from the bottom, or pushed hard the wingtips down.. Third option someone reversed the car.. In any case I don't know why people think the wing strut is unbreakable/unbendable.
Think about this picture next time when you step on to check the fuel.. |
Originally Posted by Bosi72
(Post 11027205)
I'm guessing someone tried either to lift the aircraft from the bottom, or pushed hard the wingtips down.. Third option someone reversed the car.. In any case I don't know why people think the wing strut is unbreakable/unbendable.
Think about this picture next time when you step on to check the fuel.. |
Originally Posted by stevef
(Post 11027374)
Plenty of Cessnas have footsteps strapped onto the struts for that very purpose.
Fast forward 40 years later, we are heavier, the aircrafts too are getting older, everything has an "best before" date including steel wing struts.. I wonder why those steps are not installed on some other high wing aircrafts ? |
I have often wondered why there is not a 'Weight limit' stencilled on said strut....or on that 'little tab step' on the fuselage, or in POH ??
(aircrafts? ) |
Originally Posted by Bosi72
(Post 11027861)
Yep, and they were designed 40 years ago when the weight of an average American was around 70kg.
Fast forward 40 years later, we are heavier, the aircrafts too are getting older, everything has an "best before" date including steel wing struts.. I wonder why those steps are not installed on some other high wing aircrafts ? |
Originally Posted by Ixixly
(Post 11028112)
Considering the inflight loads I'd much rather step on this and bend it than get it in the air and find out. Yes the loads on it aren't the same things but if you stepping on it bends it then you were already in trouble and either that aircraft needs to go or you need to hit the gym :P
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Originally Posted by Bosi72
(Post 11028122)
Materiel fatigue and structural damages are cumulative...
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For the full story of what actually happened look up NTSB investigation docket CEN20CA112.. In essence,, bounced on landing, entered soft surface,nose gear collapse and a/c overturned. Simples....
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Originally Posted by Bosi72
(Post 11027861)
Yep, and they were designed 40 years ago when the weight of an average American was around 70kg.
Fast forward 40 years later, we are heavier, the aircrafts too are getting older, everything has an "best before" date including steel wing struts.. I wonder why those steps are not installed on some other high wing aircrafts ? |
Some airports I’ve been to had itty bitty ladders that made it easy to get over the top of the wing and check the level of fuel.
As to passengers getting heavier… Minimal fuel load within limits, dump any extraneous material from your flight bag, make sure you have plenty of runway. Always remember weight and balance. Way back when airlines had scales that they had the luggage AND PASSENGERS step onto so that they knew what they were carrying. |
Originally Posted by Ixixly
(Post 11028112)
Considering the inflight loads I'd much rather step on this and bend it than get it in the air and find out. Yes the loads on it aren't the same things but if you stepping on it bends it then you were already in trouble and either that aircraft needs to go or you need to hit the gym :P
There will not necessarily be much strength in a sideways direction, e.g. to support a person standing on it, unless it has been designed to do so. |
Is this repair an attempt at humor? Or is it known if it flew like this?
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I'm quite happy to stand on the strut of any Cessna with a FOOTREST provided by the manufacturer.
This one is bent UP so impossible for a heavy foot to bend it like that. From an engineer's point of view, calculating the stress from standing on the strut is kinda simple. Remember there will be minimal dynamic load or factor of safety considerations. |
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