Posted: 11/26/2013 3:55:38 AM EDT
|
A plane is in flight, and the de-icer on the left wing stops working. Ice starts building up on the wing.
Does the wing come up from its normal in-flight position due to an increase in surface area increasing lift? OR Does the wing come down from its normal in-flight position due to increased weight? |
|
If nothing else happens, drag increases and the airplane starts to slow. Weight on the wing increases. The draggier wing causes the airplane to yaw and roll into the wing, most likely increasing drag. If controls and power are not used to compensate, the airplane loses altitude in a descending spiral.
All the rest of the details require analysis with a book about 12 X 9 X3 inches thick full of equations to understand. A thicker wing does not necessarily create more lift. If that thickness increases the camber, then it might, but the distribution is important, too. |
|
Quoted:
A plane is in flight, and the de-icer on the left wing stops working. Ice starts building up on the wing. Does the wing come up from its normal in-flight position due to an increase in surface area increasing lift? OR Does the wing come down from its normal in-flight position due to increased weight? It drops, not from weight, but from decreased lift and increased drag. Ice does not form a nice laminar flow, lift sustaining surface. Ice kills. |
|
Quoted:
It drops, not from weight, but from decreased lift and increased drag. Ice does not form a nice laminar flow, lift sustaining surface. Ice kills. Quoted:
Quoted:
A plane is in flight, and the de-icer on the left wing stops working. Ice starts building up on the wing. Does the wing come up from its normal in-flight position due to an increase in surface area increasing lift? OR Does the wing come down from its normal in-flight position due to increased weight? It drops, not from weight, but from decreased lift and increased drag. Ice does not form a nice laminar flow, lift sustaining surface. Ice kills. +1 |
|
Quoted:
Just a completely uneducated guess, but I'd say more ice builds on the low-pressure side of the wing, decreasing lift. Ice tends to build at the leading edge first, at the stagnation point, then spread to upper and lower surfaces. If there are other stagnation points, such as a forward mismatch in the surfaces, then ice accumulation can start there, too. |
|
Quoted:
Ice buildup would be non laminar therefore decreasing lift. Why does the basic undisturbed flow need to be laminar? It does not, and there are millions upon millions of airplanes flying with wings that cannot maintain laminar flow more than 5 or 10 percent of the chord. There's another fact about laminar and turbulent flow that most don't understand; the drag from the tripped flow from a laminar wing is most likely greater than the flow over a surface with naturally turbulent flow. |
|
Quoted:
If nothing else happens, drag increases and the airplane starts to slow. Weight on the wing increases. The draggier wing causes the airplane to yaw and roll into the wing, most likely increasing drag. If controls and power are not used to compensate, the airplane loses altitude in a descending spiral. All the rest of the details require analysis with a book about 12 X 9 X3 inches thick full of equations to understand. A thicker wing does not necessarily create more lift. If that thickness increases the camber, then it might, but the distribution is important, too. Can we get a thread lock now? |
|
Quoted:
Can we get a thread lock now? Quoted:
Quoted:
If nothing else happens, drag increases and the airplane starts to slow. Weight on the wing increases. The draggier wing causes the airplane to yaw and roll into the wing, most likely increasing drag. If controls and power are not used to compensate, the airplane loses altitude in a descending spiral. All the rest of the details require analysis with a book about 12 X 9 X3 inches thick full of equations to understand. A thicker wing does not necessarily create more lift. If that thickness increases the camber, then it might, but the distribution is important, too. Can we get a thread lock now? No
|
|
Quoted:
No ![]() Quoted:
Quoted:
Quoted:
If nothing else happens, drag increases and the airplane starts to slow. Weight on the wing increases. The draggier wing causes the airplane to yaw and roll into the wing, most likely increasing drag. If controls and power are not used to compensate, the airplane loses altitude in a descending spiral. All the rest of the details require analysis with a book about 12 X 9 X3 inches thick full of equations to understand. A thicker wing does not necessarily create more lift. If that thickness increases the camber, then it might, but the distribution is important, too. Can we get a thread lock now? No ![]() Make sure you IM it to all site Staff.
|

