An Earth Army unit of similar size is a Divsion, which comprises three Brigades. The 10,000 men are actually a military landing force called a Umak. * There is only one 10,000 man craft mentioned. Hastor launched the largest battleship ever, with the capacity to carry 10,000 men (Fighting) John Carter and Vor Daj left Helium (Synthetic) in a small cruiser of new design that could attain speeds over 400 mph. Effective max appears to be 3,000 haads per zode until better ship building methods are developed. The new one-man fliers built with that motor achieved speeds of 2,000 haads per zode (approximately 300 mph). The motor depended upon the planet's magnetic field for energy, thus was practically unlimited in range.

At some time before the events of Fighting Man, an unknown padwar in the Helium navy developed a new motor with half the weight and twice the power. range in size from single seaters to 10,000 man crafts.* The swift scout flier (pre-Fighting Man of Mars) had a top speed of 1,100 haads per zode (166 mph). Yet, for all the knowledge lost there remains a significant core of scientific study that is astounding. Methods of cold light, radium light, or some forms of manufacturing have been lost. For example, the great atmosphere plant created by the Orovars as the oceans of Mars evaporated, has never been duplicated by the red race which now maintains the gigantic device. Much of the technology has been passed down over the ages, but a significant part of the elder races' knowledge has been lost. Mars, according to Edgar Rice Burroughs, has a human history spanning millions of years and in that time races have risen to scientific heights exceeding our planet and then faded to memory as a younger, more vital race emerges. Barsoomian technology is a curious mixture of the sophisticated advanced scientific society and the primitive innocence of barbarism.

Barsoom seventh ray