Other Available Tabs
This tab shows a list of the following;
|
Speed |
Speed of the aircraft |
|
CL |
Calculated Lift Coefficient based on the aircraft weight and wing area |
|
CD |
Calculated Drag Coefficient based on the total flat plate area of the aircraft |
|
L/D |
Lift to Drag Ratio. The ratio of the Lift Coefficient and Drag Coefficient. |
|
Power Required |
Calculated power required in the units of the Maximum Power multiplied by the maximum propeller efficiency. The maximum propeller efficiency is set in the Winfoil Preferences screen. A good starting point is 80%. Propeller efficiency does vary with speed. The simplified calculation provided here is a guide to maximum performance. The calculation of propeller efficiency and selection of propellers will be provided in a later version of Winfoil. |
At the bottom of the screen is a dropdown list box containing speed units. The selected units do not have to match the units used in other tab screens. Winfoil will automatically convert from unit to unit.
Each time this tab is accessed, Winfoil will automatically recalculate the performance of the design.
The following performance items are calculated based on the data entered;
Stall Speed
Estimated Maximum Speed
Maximum Lift to Drag Ratio
Minimum Sink Speed at speed
These values will be shown automatically by moving the mouse over the tab in a Tool Tip style window(Performance Popup Box ).
Printing Performance Details
These details may be printed by clicking on the Print menu item in the File menu or by clicking on the Print toolbar button.