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Posted

What is a monocoque wing? Ive studied it in school...Ive never seen one before and I want to think it is like what you would see on a Cessna 172...please provide a picture if you have one.

Posted

AFAIK, monocoque just means that it doesn't have a supporting frame inside. Similar to some automobiles having unibody construction; all the weight and stress is bore by the outer skin itself.

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Posted

That makes sense...really, it does! I was confused by this a few times, Ive always figured a monocoque wing was a high wing supported by braces that mount to the fuselage and wing (cessna 172).

Posted

IT mean shell construction. Its basically a shell holding together the shape with support of beams with cut out holes.

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Posted

"Monocoque, from the French for single (mono) and shell (coque), is a construction technique that supports structural load by using an object's external skin as opposed to using an internal frame or truss that is then covered with a non-load-bearing skin. Monocoque construction was first widely used in aircraft in the 1930s."

http://en.wikipedia.org/wiki/Monocoque

Cheers.

Posted

So lets see if I have this right:

Semi-Monocoque is an aircraft that has skin that supports some of the load, but most of the load is supported by hollow structures, mostly made of fabric, like a hang glider or other type aircraft.

 

Monocoque is an aircraft that has sheet metal skin that supports all of the load with no internal braces or hollow structures to support the load.

 

PLEASE correct me if I am wrong...Im stressing out on this stuff, and I have 90 days to my FAA writtens and O&P. This is one of a few things that are stressing me.

Posted
So lets see if I have this right:

Semi-Monocoque is an aircraft that has skin that supports some of the load, but most of the load is supported by hollow structures, mostly made of fabric, like a hang glider or other type aircraft.

 

With semi-monocoque, the skin is still a major part of the structure, so any aircraft with a fabric covering would not qualify. Pretty much all helicopters these days are semi-monocoque, they have an internal structure of spars, stringers, etc., but the aluminum skin is also considered a major part of the structure.

Posted
With semi-monocoque, the skin is still a major part of the structure, so any aircraft with a fabric covering would not qualify. Pretty much all helicopters these days are semi-monocoque, they have an internal structure of spars, stringers, etc., but the aluminum skin is also considered a major part of the structure.

Spars, stringers and longerons are all part of a moncoque structure, correct?

 

A spar is what holds ribs together in-line. Ribs form the shape of the airfoil. Stringers are what is absent in a semi-monocoque structure? (me retaining my bearings, thinking aloud)

 

Now this is my "deer caught in the headlights" look :noexpression:

Im under the impression now that a longeron is what mounts a control surface to an airfoil.

 

Sorry for these dumb questions...Im just having a very difficult time visualizing the difference between these 2.

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