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MT 0216 Coacc.jpg
Close Orbit and Airspace Control Command
Author Terrance McInnes
Publisher Game Designers Workshop
Version MegaTraveller
Edition 1st
Format Book (Softback)
Language English
Pages 98
Year Published 1989
Canonical Yes
Available from RPGNow
Also See Aircraft
ISBN 0-943580-72-2 Stock #0216
Table of Contents
Introduction 5
The Origins of COACC 6
Military Control of Atmosphere 10
Air Units 14
Aircraft 16
Overview 22
Aircraft Design 26
Designing Fixed-Wing Aircraft 28
Helicopter Design 36
Airship Design 42
Air-to-Air Combat 48
Air-to-Ground Combat 56
Aircraft Ordnance 66
Ground-to-Air Combat 70
Bases 74
Maintenance 78
Defending a World 82
The Eddum Campaign 84
Flyer Characters 90

COACC is a Game Designers Workshop product.

Description (Specifications)[edit]

The army controls the ground!

The navy controls space!

But the interface between the two belongs to COACC — the fliers. Aircraft of all types — jets, props, helicopters, dirigibles — come under the Close Orbit and Airspace Command. COACC provides rules for fliers in the Traveller universe. Coverage includes character generation, COACC organization, aircraft design sequences, example aircraft, and air-to-air combat rules.

A detailed treatment of aircraft and the characters that fly them in MegaTraveller. This 98-page sourcebook includes:

  • Character generation for flyers in MegaTraveller.
  • Detailed analysis and description of the organization and operation of COACC, the definition of COACC responsibilities (...anything that uses wings is ours), the missions that COACC undertakes, who controls COACC, and mercenary COACC units.
  • Aircraft design rules for producing and rating fixed-wing propeller and jet-propelled aircraft, rotary-wing aircraft (helicopters) and airships.
  • Air combat rules for resolution of military encounters between airplanes. Both a hasty and a detailed system are included. Chapters address the types of ordnance and bombs that aircraft carry for attacks against other aircraft and for ground strikes.
  • Tech Level tables showing the evolution of, and types of aircraft throughout the Imperium.
  • Examples of aircraft (...including their design ratings and illustrations) are scattered throughout the text.
  • The Eddum Campaign. A complete COACC campaign incorporating aircraft design and combat in a unique battle to win the hearts and minds of the people of Eddum to specific factions within the Rebellion

Table of Contents[edit]

Section Page/s
Introduction 5
The Origins of COACC 6
Reading Aircraft Specifications 9
Military Control of the Atmosphere 10
COACC Organization 12
Air Units 14
Squadron Organization 14
Aircraft 16
Overview 22
Tech Level Chart 22
Aircraft Technology 24
Aircraft Design 26
Fixed-Wing Aircraft Design Charts 28
Helicopter Design 32
Rotary-Wing Aircraft Design Charts 36
Airship Design 42
Airship Design Charts 44
Air-to-Air Combat 48
Maneuver Grid 50
Off-Angle Diagram 52
Missile Types 54
Air-to-Ground Combat 56
Aircraft Loadouts 60
Air-to-Ground Combat Charts 64
Aircraft Ordnance 66
Ordnance Charts 68
Ground-to-Air Combat 70
Bases 74
Bases Diagram 76
Maintenance 78
Daily Maintenance Points 80
Defending a World 82
The Eddum Campaign 84
Campaign Map 86
Flyer Characters 90
Enhanced Flyer Characters Chart 94

Library Data Entries (Public)[edit]

  1. Aircraft
  2. Atmosphere
  3. Autocannon
  4. Base
  5. Bomb
  6. Eddum (world)
  7. Energy Weapon
  8. FAC (Forward Air Controller)
  9. Fighter
  10. Flyer
  11. Flying Creature
  12. Laser Weapon
  13. Meson Gun
  14. Missile
  15. NOE
  16. Nuclear Damper
  17. Nuclear Weapon
  18. Orbital Defence
  19. Ordnance
  20. Particle Accelerator
  21. Pilot AKA Flyer
  22. Planetary Assault
  23. Planetary Defense
  24. Rebellion
  25. Riding Beast
  26. Rocket
  27. Smallcraft
  28. Tech Level
  29. Terran Confederation

Library Data Entries (Automated)[edit]

Library data entries

Selected Aircraft Types[edit]

  1. Airplane
  2. Airship
  3. Balloon
  4. Biplane
  5. Bomber
  6. Dirigible
  7. Fast Subsonic Aircraft
  8. Fighter
  9. Fixed Wing Aircraft
  10. Glider
  11. Heavier Than Air Aircraft AKA Aerodyne
  12. Helicopters
  13. Helistat
  14. Hypersonic Aircraft
  15. Lighter Than Air Aircraft AKA Aerostat
  16. Medevac
  17. Monoplane
  18. Jets AKA Jet Aircraft
  19. Orbital Fighter
  20. Props AKA Propellor Aircraft
  21. Rotary Wing Aircraft AKA Rotorcraft
  22. Spacecraft
  23. Space Fighter
  24. Spaceplane
  25. STOL
  26. Subsonic Aircraft
  27. Supersonic Aircraft
  28. Transonic Aircraft
  29. Triplane
  30. Ultralight
  31. VTOL

Selected Military Organizations[edit]

  1. Air Force
  2. Close Orbit and Airspace Control Command AKA COACC
  3. Ground Force
  4. Nautical Command
  5. Orbital Force
  6. Terran Space Force
  7. Terran Space Navy

Selected Orbital Station/s[edit]

Space Station:

  1. Guardian class Orbital Battle Station

Selected Planetary Defense Equipment[edit]

  1. TBD

Selected Smallcraft[edit]


  1. Magnum class Heavy Fighter

Selected Sophonts[edit]

  1. Lastenti of Troolian (world)
  2. Staln of Drist (world)

Selected Vehicles[edit]


  1. Abilene class Jet Fighter
  2. Akron class Nonrigid Airship
  3. Anchorage class Frontier Transport
  4. An Khe class Utility Jet Helicopter
  5. Avalon class Amphibious Personal Aircraft
  6. Beverly Hills class Personal Jet Aircraft
  7. Bitburg class Heavy Attack Aircraft
  8. Boise class Jet Skycrane Helicopter
  9. Calcutta class Helistat
  10. Cheyenne class Jet Fighter
  11. Chicago class Heavy Attack Aircraft
  12. Dallas class Het Helicopter Gunship
  13. Hartford class Utility Helicopter
  14. Laramie class Jet Fighter
  15. Lombard class Helicopter
  16. Los Angeles class Bomber
  17. Mexico City class Bomber
  18. Mexico City class Heavy Cargo Jet
  19. Nairobi class VTOL Frontier Transport
  20. Nuremberg class Attack Aircraft
  21. Palm Springs class Personal Jet Helicopter
  22. Pasadena class VTOL Interurban Airliner
  23. Pleiku class Light Attack Aircraft
  24. Port Stanley class VTOL Medium Attack Aircraft
  25. Pretoria class Fighter
  26. San Diego class Medium Attack Aircraft
  27. Seattle class All-Weather Heavy Attack Aircraft
  28. Springfield class Light Helicopter
  29. Tokyo class Heavy Passenger Transport
  30. Tuscon class Fighter
  31. Van Nuys class Personal Aircraft
  32. Ypres class Primitive Fighter


  1. Daytona class Orbital Fighter/Interceptor
  2. Melbourne class Hypersonic Suborbital Liner
  3. Reno class Hypersonic Fighter/Interceptor

Meta-history & Background (Dossier)[edit]

COACC is a MegaTraveller source and adventure book.

Credits (Primary Sources)[edit]

Credits (Primary Sources)
Credit Authors & Contributors
Design Terry McInnes
Additional Design Marc W. Miller
Cover Illustration A. C. Farley
Interior Illustrations A. C. Farley, and Bryan Gibson

External Link/s[edit]

Commentary & Data articles:




Other articles:


References & Contributions (Sources)[edit]

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