Vickers-Chrysler SDR-10 Schiltron Space Defense Robot

img089ROBOTECH Technical Files

by Peter Walker and Pieter Thomassen, with Robert Morgenstern

edited by Tim Wing


  • SDR-10 reference file
  • SDR-10 gallery

Designation: Vickers-Chrysler Robotech Systems Inc. SDR-10 Mk II Schiltron Space Defense Robot

I. Dimensions:

  • Total Height: 8.7 meters
  • Total Depth: 4.9 meters
  • Total Breadth: 5.4 meters
  • Weight: 16.2 metric tons (dry), 37.1 metric tons (fully loaded).

II. Type:

  • One man, all weather, heavy missile Destroid mecha.

III. Service History:

  • Served with the REF/UEEF Tactical Corps from 2022 until 2040 and Marines from 2022 until 2032.

IV. Propulsion:


  • One Tirolian mecha proto-generator (known on Earth as the RT/PS-2a), providing electrical power to the mecha; output classified.

Reserve Power Supply:

  • CT HDB-4SC superconductor battery, can typically supply 400 kW for 16 hours.

V. Performance:

  • Maximum speed (fully loaded): 112 kph.
  • Maximum speed (empty): 165 kph.
  • Generator endurance: 12 years operational use.

VI. Electronics:

Radar tracking:

  • Westinghouse TPG-307 medium range (up to 50km) UWB phased array pulse-Doppler, for detection and tracking of targets, and with battlefield surveillance modes.

Optical tracking:

  • Phillips AllView multi-band digital camera system, for medium range all attitude infra-red imaging, optical and ultra-violet band detection and tracking
  • Thomson LT-5 multi-frequency laser ranger and designator.

Tactical Electronic Warfare System (TEWS):

  • Elettronica Radar Warning Receiver (RWR)
  • OlDelft Infra-red Warning Receiver (IRWR)
  • Westinghouse ALQ-250(V) active sensor jammer
  • Chaff dispenser
  • Flares.

VII. Armament:

  • 2 x Shin-Shim-15 drum-mount missile launchers. Two large drums, mounted on the shoulders of the mecha.

Each bin can hold:

  • SDR-10 Longbow 67 x variable-warhead, long range (70km for A, 130 km for E/F) Mach 3.0 combined multi-spectrum imager and active radar homing Derringer missiles.
  • or 10 x medium range Diamondback missiles ready to fire, with another 10 reloads.
  • or 10 x short range missiles ready to fire, with another 10 reloads.
  • or a combination of short and medium range missiles.

VIII. Armor:

The armor on the Schiltron is a new development in low-mass composite-materials Chobham plating that became the standard for all Terran mecha after its application to the VQ-6A Vandal. Aside from the respectable protection provided against projectiles, missiles, and other kinetic weapons, this armor is also resistant to plasma globes (annihilation discs), lasers, and to a lesser extent, particle guns, owing to the fact that the armor can flake off and evaporate in layers under fire from such high-energy weapons, taking much of the weapon’s energy and converting it into the latent heat of sublimation in the armor. The armor stops all small arms, heavy infantry weapons fire, and light mecha-mounted weaponry, and provides good resistance to medium mecha-mounted weaponry, such as the Valkyrie’s 55mm APFSDS round, and poor resistance to heavy mecha-mounted weaponry, such as the VHT’s 105mm cannon.

The Schiltron provides full protection from nuclear, biological, and chemical hazards, using an overpressure cockpit environment activated by radiation and hazardous chemical sensors, or manually when biological warfare conditions are anticipated. The internal consumables supplies can provide atmosphere for three days maximum.

IX. Development:

The primary fault with the SDR-04 Phalanx Destroids of the First Robotech War their highly limited ability to protect themselves in close combat. These mecha, with their missiles’ range of 70 km, were no match on the battlefield because of their lack of direct fire weapons. To be fair, the Phalanx was designed from the outset to be nothing more than a legged missile launcher to be used on the deck of the SDF-1. But, after the war, this Destroid found itself filling the role of multiple launch rocket artillery on the Earth as well. Though it performed well in this roll, there was little advantage to it versus conventional wheeled or tracked vehicles. (This was realized of course by the ground forces of the United Earth Defense Force.) In space, this was a liability. Its missiles were strictly medium to long range. Once a target was past the engagement envelope, the Phalanx was useless. In effect, a one trick pony that had little to justify itself when you could have a fixed missile turret that did the job just as well. The REF therefore developed the Schiltron, which entered service in 2022. This mecha was still not intended for the battle-line, but it could, because of its armament, be stationed far closer to the fighting than its Phalanx equivalent. If the battle would engulf the Schiltron, the mecha could use its enhanced speed to evade the enemy, meanwhile protecting itself with its close range missile armament.
img089aThe enhanced performance of the Schiltron, or ‘Shark’ as it was almost universally known, was not without cost, however. The additional direct fire weapon, the higher speed and the reduced size decreased the missile load to a mere seven Derringers per bin, whereas the Phalanx could carry 22. On the other hand, the bins could alternatively adapted to carry 30 Diamondback medium range missiles each, and most Schiltrons went into the field with one bin loaded with Diamondbacks and the other with Derringers. Because of the flexibility of this combined long, medium and short range missile capability the Schiltron was used on every front where the UEEF Tactical Corps fought.



Robotech (R) is the property of Harmony Gold. This document is in no way intended to infringe upon their rights.

Original artwork by: Tatsunoko Production Co., Ltd. and Tim Wing

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 – Robotech II: The RPG, Robotech Expeditionary Force Field Guide (March 1989)

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

Copyright © 2000, 1997, 1995 Robert Morgenstern, Pieter Thomassen, Peter Walker; 2016 Tim Wing