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-
- Microsoft Flight Simulator
- Aircraft and Adventure Factory*
- Adventure Files
-
-
- Approach Control Simulation
-
- (c) 1993 - John Mechalas
-
- - Introduction -
-
- Along with the static and dynamic scenery files, this archive contains
- a number of .ADV files that are for use with the Aircraft and Adventure
- Factory. Each adventure file, when loaded, will simulate Air Traffic
- Control for the specified airport. As you fly into that airport's
- "control zone", you will be told to contact approach control on the
- proper frequency, and will then be vectored in for an ILS or LOC approach
- on the most appropriate runway based on current surface winds.
- You will need the Aircraft and Adventure Factory (from Mallard software)
- in order to run the adventure files. No soundcard is required: I print
- all ATC messages directly to the screen.
- All files were created using my Approach Control pre-compiler. Approach
- Control is a program that allows you to quickly and easily generate
- adventure files that simulate the approach control ATC at an airport. It
- automatically generates the source code needed for AAF, and thus requires
- no programming knowledge. Approach Control is available at several FTP
- sites...and is most likely available at the same site where you obtained
- this archive...as filename APP.ZIP.
-
-
- - Usage -
-
- Load the adventure files as described in the AAF manual. You will
- see a seperate adventure file for each airport, and load the file
- corresponding to your destination.
-
- Here is a rough overview of the adventure files: When you are roughly
- 40 miles from your destination airport, you will be given a message
- telling you to contact approach control on the appropriate fequency.
- This message will appear regardless of what frequency you have tuned on
- your COM radio. (I am not making any attempts to simulate enroute flight
- ...only approach, so that you can load this file any time you wish to fly
- to a particular airport, from any other airport in the FS 4 database).
- At this point, you must be tuned to the frequencies given to you in
- order to receive ATC commands. ATC will tell you which runway you will be
- vectored into, and will begin giving you the approapriate heading an
- altitude changes. No airspeed commands will be issued, since I can't
- predict which aircraft you are going to be flying.
-
- IMPORTANT: You will need to start at least 40 NM outside of your
- destination for everything to work properly.
-
-
- - General Notes -
-
- This is a first-generation ATC system, and is still in the experimental
- phase. I have tested it using the LearJet for all runways and from
- various approaches, and it has vectored me in flawlessly each time.
- However, it's performance does depend on you cooperating with ATC commands.
- I don't know how "breakable" the simulation is, but it operates by trying to
- vector you to various "fixes" that are prerecorded. If you wander off
- course, ATC will give you the vectors needed to correct your heading to
- reach the current active "fix" ... but if you go too far past a fix, it
- will not move you to the next fix...rather it will turn you around and around
- until you end up where you are supposed to be.
- The feedback loop in the control algorithm is first-order (based on
- position only), so vectors are given without *direct* compensation for the
- current winds. So far, I have flown with winds as high as 30 knots
- without any problems, but if the winds are too high or if you are in a light
- plane (like the Cessna), you may find yourself receiving frequent heading
- change instructions. The next generation will contain direct, rather than
- indirect, compensator for the winds and will have a second-order feedback
- loop.
- You will want to be at about 10,000 MSL before approach control contacts
- you, so if you are flying from a distant airport, start your descent when you
- are about 60 NM outside of your destination. At about 30 miles out, you will
- be told to descend to 5000, and then 3000 MSL before final approach. Adjust
- you speed as necessary. In all aircraft, maintain less than 250 knots when
- under 10,000 MSL (it's the law! :) and for the Lear, reduce you speed to
- about 180 knots when you read 3000 MSL. NOTE: These altitudes may vary
- depending on your destination.
- You don't need to respond to ATC in any way... It will print the messages
- on your screen and you just read them. I plan to add an "acknowledge"
- key in future generations. Also, ATC does not currently keep track of
- your last assigned altitude and heading, so no one will tell you if you
- are not following instructions (though you will constantly be given new
- heading commands as your course wanders off the pre-planned flight path).
- Lastly, the program does not distinguish between left, right, and
- center runways. If both a 4R and 4L runway exist, you will simply be
- vectored into runway 4, and you may choose either the left or right
- runway as you see fit.
-
-
- * - (c) 1992 Bruse Artwick Organization