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Download Instructions Program Information Intro Here is a flight computer I made for the TI-85 calculator. It is a very functional program. You can use it to store information about your plane, a trip, and wind conditions. The program will use this information to caclulate your trip, including airspeed, time enroute, fuel burn, your true heading, wind correction angle, and cross wind component. If you want to see what the trip would be like in a different airplane, or with different winds, that's the only thing you need to change, and the program will recalculate the trip. And it's all driven by easy to follow menus. The program is in .85g format, so you will need TI Graph-Link Software to view it. Instructions These directions will be organized in the following manner. Right underneath the heading for a menu, there will be a line that shows what the menu should say. There will then be a list explaining what each item does. Installation The installation is fairly simple, but can be time consuming if you don't have a link to your computer. First you need to download the file. Just in case you missed it, the link to download the program is at the top of this page. After you download the program, you must unzip the file that you downloaded. Since it is an .85g format, there is only one file, even though the program has many subroutines. Then, if you have a data link to your computer, just transfer the group file to your calculator. If you don't have a data link, you'll have to enter everything manually, which will take a lot of time, but if you need a flight computer, it's worth it. To enter the program manually, you will need to use the File Utilities in TI-Graph Link to ungroup the .85g file to be able to see the individual subroutines. Note that it may ask you to rename files that begin with a ¾. Just get rid of the ¾ to view the files, but when entering them in your calculator, use D (delta) as the first character in the subroutine name. Also, anywhere where a subroutine is called in any program, replace ¾ with D (delta). Once all the programs are copied, you need to make sure all the variables that you need for the program exist on your calculator (they probably don't, yet). You'll need to create them. Just run the program called DFLII. This is the setup program. Once you run it once, you won't need it ever again. You can delete it if you want, or save it if you are planning to give the program to other people, so that they can set up the variables on their calculator. Main Menu Plane, Wind, Trip, More, Quit
New, C-152, C-172, Ercou, Main
Know, Unkno, XWind, ,Main
1 Head, 2+Hea, GS, More, Main
View, Redo, , Back, Main
Program Information The following information is for anybody who wants to try to figure out the program if they want to make any changes to it. Program Defintions The table below tells what each program does. For the subroutines, it says what the name of the subroutine is short for. It then gives an explanation of what the program does. Note that D is the capital delta symbol.
Variable Definitions The list below tells what each of the variables stands for. If a variable is followed by ( ), it is a list. Each of the elements of a lists corresponds to a leg of the trip. The only string variable is AP.
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