Airbus deck angles
Thread Starter
Airbus deck angles
Can anyone explain why Airbus's, particularly the larger ones, approach at such a high deck angle compared to Boeings? Do they have higher incident angles, or do they approach at higher angles of attack?
Join Date: Nov 2005
Location: Sydney
Posts: 98
Likes: 0
Received 0 Likes
on
0 Posts
Wing Design
The Airbus wing design is such that the aircraft actually flies to the ground. This improves landing and go-around stability and performance. The landing escape manouvre is enhanced.
Thread Starter
The Airbus wing design is such that the aircraft actually flies to the ground.
Join Date: Dec 2001
Location: what U.S. calls Žold EuropeŽ
Posts: 941
Likes: 0
Received 0 Likes
on
0 Posts
Airbus and Boeing wing design is quite different if it comes to high lift configuration. While Boeing is using tripple slotted flaps (with the upper surface of the third flap almost perpendicular to the fuselage longitudinal axis at max deflection), Airbus uses just single slotted fowler flaps at smaller deflection angle, but with very high efficiency.
So if you understand extending the flaps as virtually turning the wing relative to the fuselage (turning the zero lift angle of incidence), Boeings "turn" their wings more than Airbus, thus needing lower fuselage AoA.
So if you understand extending the flaps as virtually turning the wing relative to the fuselage (turning the zero lift angle of incidence), Boeings "turn" their wings more than Airbus, thus needing lower fuselage AoA.
Thread Starter
That makes sense.
Single slotted flaps would obviously be mechanically much simpler (and, indeed, Boeing went from triple to double slots on the 737-NG and (I think!!) the 777) but I wonder which is more effective?
As the main purpose of flaps is to increase CLmax,which configuration would give the greater gain over CLmax (clean)?
Single slotted flaps would obviously be mechanically much simpler (and, indeed, Boeing went from triple to double slots on the 737-NG and (I think!!) the 777) but I wonder which is more effective?
As the main purpose of flaps is to increase CLmax,which configuration would give the greater gain over CLmax (clean)?
