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Work Done:
I need a little tool, coded in Java which makes some easy calculations regarding crosswinds and landing speeds in given wind conditions for an aircraft.
There should be a box where I can enter the direction of the intented runway (rwy_d) and the the direction of the actual wind (wind_d) and windspeed (w_speed) and eventually wind gusts (w_gusts).
I also want to enter a speed (vref)
Now the tool should calculate and display the following:
1. Crosswind:
Please see Wikipedia for this easy calculations (just one formular):
http://en.wikipedia.org/wiki/Crosswind
2. Headwind or Tailwind speed
Same as above
3. Vtgt:
This is calculated as follows:
We take the entered Vref and add 5 kts to get Vtgt when the calculated headwind is not greater than 10
If the the headwind is greater than 10, the tool should add 1/2 (half) of the headwind speed to get Vtgt.
If there are gusts present (there was an input in the gust field) then the tool should add this value in addition to get Vtgt
All in all there should be an maximum add of 15 kts to Vref to get Vtgt.
Example:
No wind condition:
Vref = 92
The tool should calculate a Vtgt of = 92 + 5 = 97
Example2:
Headwind is 18 / Gusts are 25
Vref = 92
The tool should calculate the following =
Vtgt = 92 + 15 = 107 ( 9 for 1/2 headwind plus 7 for gusts would result in a total of 16, however maximum additional is 15)
Thats all, there is no need for fancy interface, etc.
Just a little app with a small interface for calculation of the above. |
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