Matra Diamondback Long Range Anti-Mecha/ Ground Attack Missile

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ROBOTECH Technical Files

by Pieter Thomassen, with Peter Walker and Robert Morgenstern

edited by Tim Wing

Designation: Matra Diamondback (A,B,C,D,E,F,G)


  • (A,B,E,F) – Long range anti-mecha/ground attack missile.
  • (C) – Long range anti-radiation missile.
  • (D) – Long range nuclear anti-ship/surface missile.
  • (G) – Medium range anti-mecha missile.

Service history:

  • (A,B,C,D) – 2018-2031, UEDF; 2023-2030, UEEF.
  • (E,F) – 2025-present, UEEF.
  • (G) – 2044-present, UEEF.


  • (All) – 120 cm.


  • (All) – 25 cm.


  • (A,B,C) – 110 kg.
  • (D) – 107 kg.
  • (E,F) – 111 kg.
  • (G) – 117 kg.


  • (A,C,E) – HE armor piercing multi purpose.
  • (B,F) – plasma.
  • (D) – W-153 nuclear reaction.
  • (G) – AP cluster warhead.


  • (A,B,C,E,F) – 22 kg.
  • (D) – 1 kT (reaction).
  • (G) – 40×1 kg self propelled, IIR guided bomblet.


  • (All) – Hybrid rocket engine.


  • (A,B) – Combined IIR and active radar homing.
  • (C) – Combined inertial and passive radiation homing.
  • (D) – Combined inertial, command and active radar homing.
  • (E,F,G) – Combined IIR, UV/visual and active radar homing.
  • Note: all versions can use home-on-jam guidance.

Max speed:

  • (All) – Mach 3.2 (standard profile); Mach 6.1 (high speed profile).


  • (A,B,C,D) – 65 km (standard profiles), 22 km (high speed profiles).
  • (E,F) – 115 km (ballistic trajectory), 70 km (direct trajectory), 24 km (high speed profiles).
  • (G) – 28 km (direct trajectory).



The successor to the Stiletto and the Scorpion, the Diamondback was designed in 2017 to be more compact than the previous missiles, so as to better fit in the internal launchers on the advanced mecha then in development. For the past 28 years the Diamondback has been the most important medium range mecha launched missile in the Terran inventory, and there are no plans to replace the missile, though several upgrades are being considered.

The first Diamondback versions were the conventionally armed A and the plasma armed B version, for general purpose use and ground attack respectively. Both versions were heavily used on Earth by the Southern Cross and in space by the UEEF, which also produced these missiles in large numbers in the Local Group. An anti-radar version, the C, was less used. Though a large number of these missiles was shipped with the UEEF for use against Zentraedi, most remained in storage on Tirol as the actual enemy, the Invid, provided few targets for these defense suppression missiles. The most use made of these missiles was during the UEEF Civil War, when suitable targets were available in numbers. The last of the pre-UEEF versions is the nuclear tipped Diamondback D. This missile uses a small tactical nuclear fission device as its warhead, and was typically employed against large airborne enemy formations, small hives and Mollusk Carriers. Improved versions were developed by the UEEF, the first entering service in the late twenties. The E and F versions were basically A and B versions with a new, improved seeker head with additional UV and visual sensors for better homing on Invid mecha, and a slightly improved rocket engine with ballistic path option which, with mid-course guidance, increased maximum range. The as yet final version of the Diamondback, the G, was designed by the UEEF after the Marcus Antonius returned from Earth with examples of the Southern Cross’s Lightning cluster missile. Recognizing the potential of this missile against a numerically superior enemy like the Invid, the UEEF designers decreased the engine section, as the Invid did not have sufficiently ranged weapons to fire on mecha at more than a few kilometers, and used the space and weight freed for an outsized cluster warhead. This missile entered service in 2044, just in time for the final attack on Reflex Point, and in that battle proved its lethality by taking out an average of 1.6 Invid mecha per missile fired.

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Robotech (R) is the property of Harmony Gold. Genesis Climber MOSPEADA (R) is the property of Fuji Television, Artmic Studio and Tatsunoko Production. This document is in no way intended to infringe upon their rights.

Original artwork by: Yoshitaka Amano, Shinji Aramaki and Hideki Kakinuma

Acknowledgement is extended to Peter Walker, Pieter Thomassen and Robert Morgenstern of the unofficial Robotech Reference Guide. Peter Walker, Pieter Thomassen and Robert Morgenstern are given credit for all quotes and paraphrasing of the unofficial Robotech Reference Guide that has been utilized in this publication. 

Images from – unknown

Content by Peter Walker and Pieter Thomassen, with Rob Morgenstern, edited by Tim Wing

Copyright © 1997 Robert Morgenstern, Peter Walker, Pieter Thomassen; 2016 Tim Wing