Unity City has been able to obtain some classified drawings of the S.H.A.D.O. Mobile.

This vehicle has never come off the secret list - Officially, SHADO does not exist.

Don't let SHADO security find you in possession of these plans.


These drawings have been retro engineered from assiduous study of photographs and eyewitness accounts of persons who have seen SHADO Mobiles in operation.


At Unity City we are of course unable to divulge our sources of such sensitive material. : )


We extend our thanks to John Goode for his most excellent work.


Click on the plan you wish to see enlarged.

Master View

SHADO Mobile Master View


Top View & Layout

SHADO Mobile Top view



SHADO Mobile Powertrain



SHADO Mobile Armament


Human Factors

SHADO Mobile Human Factors





  1. In making these drawings, I had the privilege of working with some of the people directly involved with developing very similar tracked vehicles for the military. Rest assured the design conclusions presented here for the SHADO Mobile were arrived at through careful study, from the expertise and help of knowledgeable engineers in the field. After this process, I can say the SHADO Mobile seems more realistic than ever, and I hope it does the same for you.


    1. The Mobile was obviously intended to traverse a variety of natural and rough terrain which includes "fording" shallow rivers, streams, lakes etc. The multitude of "venting" along the upper portion of the hull strongly suggests that these vents allowed the Mobile to intake air for it's various systems while partiallysubmerged in several feet of water.


    1. The large grated area above the cab was a logical choice for the engines intake as well as intakes for other equipment, environmental and armaments which would need fresh air for cooling etc.and it's position above the cab works in line with the other venting at the top of the hull, away from encountering water and debris.


    1. It became necessary to incorporate two A.P.U.-Auxiliary Power Units, or more commonly known as "generators" to accommodate the various weapon systems and communications arrays. Existing "venting" for intake and exhaust presented themselves nicely for this purpose.


    1. The equipment situated at the very top of the cab can be explained as the emitters, antennae and arrays common with infrared, radar, GPS navigation, communication, spectral imaging and so forth, that would be vital in tracking and combating Alien spacecraft, and directing the weapon targeting for such encounters.


    1. The various shaped lines on the side of the hull indicate access hatches for the various systems, and storage of other equipment. In close-ups of the Mobile in action on the TV series, you can sometimes make out the wording of the labels on these hatches.

    In future instalments, we'll explore the facility where the Mobiles are stored and maintained, and we'll explore details of the hull openings and their operation. We'll dare to be bold and reveal what the second generation of SHADO Mobiles would have looked like. The SHADO Mobile presented a fascinating and fun challenge in reverse engineering. These configurations represent one opinion, and are meant for casual enjoyment only, and to add a sense of reality to the vehicle seen in the series. Great steps have been taken to assure accuracy and feasibility using known technology and engineering. The dimensional figures in feet were derived at through careful scaling of the plasticine figures present in the cab of the original studio model which was photographed by ITC and reprinted in several books over the years. It became apparent those particular photos were badly underexposed, but after digitizing, brightening and enlarging them, amazing detail was revealed.

-John Goode
March, 2000







Any comments? Send an E-MAIL to the SPECTRUM HEADQUARTERS site