Acm is an air combat simulator that runs under the X window system.It also have network cabailities for multiple player games
This version of acm is implemented as a distributed simulation.
It communicates information via the IEEE Distributed Interactive Simulation protocol.
Download Source Package acm:
This is the download page for the ACM-5.0-ico version of the ACM Air Combat Maneuvering program. The ACM-5.0 flight simulator was originally written by Riley Rainey (www.websimulations.com). The ACM-5.0-ico version has some additions and some improvements listed in the Main Differences section of this page, whose main aim is to enhance the program for instrumental flight.
 Landing with the Cessna 172-RG. And remember to deploy the landing gear! |  Dog fight F-16 vs. MiG-29. |  Suggestive scenery of the Dallas airport by night. |
The program is distributed under the GNU GENERAL PUBLIC LICENSE version 2.
FeaturesHere is a summary of the main features:
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The classic instruments panel (from the ACM manual; click to enlarge).
For those that already know ACM-5.0, here is a list of the main difference between the original program and ACM-5.0-ico:
A graphical interface to launch the program that allows to choose between its many options is now provided (acm.tk). A precise scale factor gets calculated. Weather: wind, daylight or night flight. The quantity of fuel can now be specified along the payload weight. Every aircraft has a maximum vertical load factor; beyond this structural limit the aircraft gets destroyed. Proper magnetic heading indication. You can choose between classic instruments panel and HUD. Enhanced HUDEnhanced HSI with two independent receivers NAV1/NAV2 and five RNAV computers. NDB stations receiver and ADF indicator. Auto-Pilot System: hold climb rate, hold altitude, follow VOR radial, follow ILS descend path, ailerons/rudder auto-coordination, keep speed. Runway numbers now marks runway ends. Both tricycle and bicycle landing gear supported. Landir gear dynamics fully implemented on 3 wheel, including aerodynamic forces moving on the ground. More aircraft models: AMX, MD-81, Boeing 747, P-51A. The range of the radio stations now is limited both by emitted power and by altitude and Earth curvature. You can leave the ACM window in background and switch to other applications. Italy scene, with the main airports and NAVAIDs. Navigation charts in PDF format covering the Dallas scene and the Italy scene, including runways, NAV and ILS stations. with turn-and-slip indicator, bank indicator, timer and radar altimeter.
Bugs fixed:
Resolve properly second order differential equation. Now the flaps state is displayed. Crash for "Color Segment pool overflow" -- fixed. Fixed crash when at rest on the runway.
Description of the HUD features (from the ACM manual; click to enlarge).
acm-5.0-ico-20080420 Umberto Salsi
+ FIX: HUD, turn indicator: now shows actual yaw rate.
+ FIX: classic turn&slip indicator: now show turn rate around aircraft z axis.
+ FIX: rendering: show correct downward view at higher zoom factors.
+ Added Thrust Reverser device (currently available only on B-747):
* Inventory: added parameter HasThrustReverser.
* Enable/disable thrust reverser with SHIFT-!. To enable, engine setting
must be idle (<= 25% RPM). * Panel: new "THR REV" lights, blinking while the device is moving. + AutoLanding, flare maneuver: with tricycle, thrust reverser, lower nose, brakes; with bicycle, thrust reverser, raise nose, no brakes. + Render: darker night. + ADF: added rotatable heading needle for pilot's convenience (7 and 8 to move). + Manual updated with the new features listed above, and AutoLanding procedure fully described. acm-5.0-ico-20080328 Umberto Salsi
+ BUG FIXED: now works also with 8-bit and 16-bit color depth (please choose
accordingly the "Color depth steps" parameter now available in acm.tk).
+ BUG FIXED in magnetic compass scale labels.
+ Now compiles under GCC 4.
+ Aerodynamic forces fully implemented also on the ground.
+ Landing gear model rewritten, now it deals with the roll moment, wheels
skidding, detect max lateral load on all the landing gears, steering
effectiveness reduced at high speed.
+ Bicycle landing gear now supported.
+ Added P-51A "Mustang" to the inventory (first bicycle gear available).
+ Starting airborne, set pitch 3 DEG and gear retracted.
+ The parameter -heading now sets MH (not TH).
+ Auto-Pilot System: introduced max bank limiter from 5 to 25 DEG.
+ New option -drone_mode [DOG_FIGHT | HUNTING].
+ New panel light "G-LOAD" blinks above 75% max wings load.
+ Inventory file:
* GroundingPoint parameter removed since now it is calculated at run-time
along a proper rest pitch, so that the aircraft can be deployed gently over
the runway.
* MaxNWS parameter removed since now steering effectiveness gets reduced as
far as the velocity increases, reproducing some "resistance" feedback to
lateral acceleration.
* NWIncr parameter removed as the keyboard cannot be used to steer.
* If Object parameter undefined do not display aircraft chase view
rather than simply crash the program.
+ Source changes:
* Vlib and Alib reorganized as "C modules", extensively introduced the
concept of "Rect", old Win32 code moved into a sub-dir.
* The number of polygons that may be rendered is now unlimited.
* New module src/vpath_gallery that implements common drawings.
* Removed all the bitmaps images, now implemented with vpath. All the
graphics routines now based on Vlib, no more X Window calls spread.
* Module src/vlist properly renamed as "viewer".
* HUD ladder and HSI compass scale now generated at run-time, so removed
tools/horizon.c and tools/hsi_header.c.
acm-5.0-ico-20080209 Umberto Salsi
+ New: cockpit view now rendered in accurate scale based on
screen resolution (pixel/meter) and on the distance of the eye from the
screen. The downward angle of view can also be specified. The command
line parameters -eye_to_screen_cm and -downward_view_angle_deg were also
added. The -scale parameter then removed.
+ New: zoom with +/- keys, ranging from x0.125 up to x4.
+ HUD now rendered more realistically with smaller dimension
and moved downward 3 DEG (or, nose pointer move up 3 DEG) so that the
center of the HUD is very close to the point toward we are flying to or
we are aiming to.
+ New: SHIFT-$ enable combat in drone mode.
+ Smarther drones do not crash to the ground (almost :-) anymore.
+ Splash screeen removed; copyright info displayed with -copyright switch.
+ acm.tk: support for new parameters "eye distance from screen" and
"downward angle of view".
This is only a partial list that reports changes in the last 3 published versions of the program. The complete list is available in the file CHANGES of the distributed package.
The package Source tarball: acm-5.0-ico-20080420.tar.gz (1537 KB)
Latest version under development: see CVS.
Includes:
- Complete source of the program for Unix, Linux and Solaris.
- A default scenery with over 100 runways.
- Navigation charts in PDF format referring to the Dallas area (Texas) and the Italy area.
- A graphical interface to start the program (
acm.tk). - The complete manual of the program in HTML format, that explains how to use the program and how to build new scenes and new aircrafts.
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