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-   -   The answer is...... (https://www.rcuniverse.com/forum/questions-answers-154/10579356-answer.html)

1fasthitman 06-17-2011 03:01 PM

The answer is......
 
The imaginary straight line joining the trailing edge and the center of curvature of the leading edge of the cross-section of an airfoil.

mustangman177 06-17-2011 03:06 PM

RE: The answer is......
 
"What is a Datum Line ?"

Lnewqban 06-17-2011 04:32 PM

RE: The answer is......
 
That is the chord of any airfoil.

moe7404 06-18-2011 01:06 PM

RE: The answer is......
 
42

Gray Beard 06-18-2011 01:35 PM

RE: The answer is......
 
186

DeferredDefect 06-18-2011 01:40 PM

RE: The answer is......
 


12</p>

MinnFlyer 06-21-2011 04:09 AM

RE: The answer is......
 
What is the line of incidence

TFF 06-21-2011 04:17 AM

RE: The answer is......
 
It is the Cord line, and with reference to the centerline of the fuselage, the angle measurement makes the angle of incidence.

Rodney 06-21-2011 07:53 AM

RE: The answer is......
 


ORIGINAL: TFF

It is the Cord line, and with reference to the centerline of the fuselage, the angle measurement makes the angle of incidence.
You are right in that it is the cord but not in that the angle it makes with the fuse is angle of incidence. The angle of incidence is the angle between the chord of the stab and the cord of the wing and can theoretically be at any angle to the fuselage center line.

Bax 06-21-2011 08:02 AM

RE: The answer is......
 
OK, it is CHORD.

INCIDENCE is the angle of the wing with respect to the reference line through the fuselage...the datum line from front to rear. The horizontal stabilizer can also have an angle of incidence.

DECALAGE is the commonly-used term for the angular relationship between the wing and horizontal stabilizer. This has also been referred to as LONGITUDINAL DIHEDRAL.

ANGLE OF ATTACK is the angle between the wing and the oncoming airstream when in flight. "Flight" starts when the aircraft begins its takeoff run, and ends when it completes the landing roll...at least as far as this discussion is concerned.

K-Bob 06-21-2011 02:41 PM

RE: The answer is......
 


ORIGINAL: Bax

OK, it is CHORD.

INCIDENCE is the angle of the wing with respect to the reference line through the fuselage...the datum line from front to rear. The horizontal stabilizer can also have an angle of incidence.

DECALAGE is the commonly-used term for the angular relationship between the wing and horizontal stabilizer. This has also been referred to as LONGITUDINAL DIHEDRAL.

ANGLE OF ATTACK is the angle between the wing and the oncoming airstream when in flight. "Flight" starts when the aircraft begins its takeoff run, and ends when it completes the landing roll...at least as far as this discussion is concerned.
Word.


pimmnz 06-21-2011 04:14 PM

RE: The answer is......
 
`Decalage' actually originally meant the difference in rigged incidence of the planes (wings) of a biplane...monoplanes couldn't have any decalage...
Evan, WB #12.

Lnewqban 06-21-2011 05:32 PM

RE: The answer is......
 
Decalage in French = Shift in English

http://en.wiktionary.org/wiki/decalage

Décalage vers le rouge = Shift towards the red

pimmnz 06-21-2011 06:16 PM

RE: The answer is......
 
There you go...And then there's 'cabane', 'nother French word (they designed the aeroplane, you know) which was a pyramidal structure built above the wing of a monoplane to which that wing was braced...in other words, biplanes (which have struts, both wing and centre section) don't have cabanes, don't need them...but I notice that most American biplanes seem to have them...
Evan, WB #12.


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