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Malon Ship

Size Comp
Universe : Prime Timeline
Affiliation : Malon
Class Name : Malon Ship
Type : Theta radiation freighter1
Unit Run : Unknown
Commissioned : Unknown
Dimensions : Length : 1,000 m2
Decks : 421
Mass : Capable of carrying in excess of 4 Trillion isotons of cargo
Crew : Approximately 701
Armament : No beam weapons8 x Heavy spatial charge launcher1
Defence Systems : Standard shield system, total capacity 1,890,000 TeraJoules
Standard Duranium / Tritanium Double hull.
Standard level Structural Integrity Field
Warp Speeds
(TNG scale) :
Maximum Rated : 9
Strength Indices :
(Galaxy class = 1,000)
Beam Firepower : -
Torpedo Firepower : 3,200
Weapon Range and Accuracy : 1,230
Shield Strength : 700
Hull Armour : 100
Speed : 792
Combat Manoeuvrability : 450
Overall Strength Index : 1,212


The Malon freighters have been encountered by Voyager several times.3 These vessels carry the highly toxic theta radiation waste produced by Malon antimatter technology, dumping it in relatively unpopulated areas. The ships are large, and heavily armed - the Malon are not always choosy about where they dump their waste, and local inhabitants often attack the freighters which are polluting their environments.1

The waste is carried in super dense form, allowing a single ship to carry over four trillion isotons in a single load.4 The extremely toxic nature of Theta radiation means that contamination of the crews work and living areas is a routine occurrence on these ships - despite the Malons advanced medical technology a waste controller who works six months of the year can expect his life to be cut in half, while a labourer who works close to the ships storage areas has a 70% chance of death within even a single trip.

The ships are designed with very little in the way of comforts for the crew; the interior is squalid and highly unhygienic. The crew live communally, even cleaning themselves in a facility which holds up to fifty at a time.4

Colour key

Canon source Backstage source Novel source DITL speculation


# Series Season Source Comment
1 VOY 5 Night
2 Speculative Approximation.
3 Various Voyager episodes
4 VOY 5 Juggernaut
Series : VOY Season 5 (Disc 1)
Episode : Night
Source : Speculative
Comment : Approximation.
Series : VOY Season (Disc )
Episode : Various Voyager episodes
Series : VOY Season 5 (Disc 6)
Episode : Juggernaut


We've seen the Malon freighters a couple of times, but we know relatively little about them. As is usual for non Starfleet ships, I feel a lot more comfortable putting "unknowns" into the tables as the real Daystrom Institute presumably knows as little as the fans do.

The episode Juggernaut gives us most of the details. It shows the freighter in the same shot as Voyager, which is where I get the length of 1 kilometre from. That's just a rough estimate, and as usual I'd be happy to hear from anybody who has more official figures.

Juggernaut establishes that the freighter is carrying "twelve trillion isotons" of waste. In the real world the prefix "Iso-" simply means "same as", but in Trek the term appears to be a multiplier used in the same way that we use "kilo" or "Mega".

The DS9 Tech Manual claims that a photon torpedo with a 3.15 kg M/AM warhead has a theoretical maximum yield of 25 isotons and an actual yield of 18.5 isotons. Assuming that by "theoretical maximum" they mean that the M/AM reaction would release all the possible energy allowed by E=mc2, this would make one isoton equal to about 2.7 Megatons.

However, the DS9 TM's numbers are contradicted by the Voyager "Scorpion" episodes. These establish that their photon torpedoes are rated at 200 isotons, rather than the 18.5 claimed for DS9's photons. It's hard to credit that Voyagers torps are over ten times more powerful than DS9's, and four times more powerful than the minimum 50 isoton power of a quantum warhead given in the book. Probably the simplest explanation is that the DS9 TM's figures are off by a factor of ten, i.e. the theoretical maximum yield of a 3.15 kg warhead is 250 isotons and the actual yield 185, with Voyagers torps 200. This would make an isoton equal to about 270 kilotons.

Even using this lower figure, we get a number for the mass of waste carried by the Malon freighter in "Juggernaut" of over one million trillion tons. Using 1 isoton = 2.7 Megatons would give a cargo mass of ten times this, or ten million trillion tons!

The waste we see emitted by these ships is always in the form of a gas, but if the mass carried is indeed of such a high magnitude then it's hard to believe that they are carrying tanks of gas around. I'm assuming that the substance is stored as some sort of very high density solid, which changes to a gas as it is released from the storage tanks. You could maybe argue that the gas itself is immensely dense - super massive atoms, perhaps - but whenever we see it released on the inside of the ship it looks only slightly denser than air (almost as if had exactly the same density as CO2, snigger snigger). Of course, that assumes that the stuff we see released on the inside is the same stuff we see released on the outside.

One other possibility is that the Malon guy is not in fact referring to the mass of the gas with the four million isoton number, but rather to its explosive yield. This would avoid having to have super high density storage, but it doesn't really fit the dialogue well :

Fesek : "Listen to me very carefully. The fact that we're still here means the ship hasn't exploded. Yet. When it does, over four trillion isotons of antimatter waste is going to ignite. Everything within three light years will be destroyed."

The fact that he is directly referring to how much waste will ignite seems to be a fairly concrete sign that this is mass, not yield. But if the above demonstrates anything it is that whatever interpretation you make is loaded with assumptions.

The crew numbers are based Feseks statement that when the gas leaked over sixty crewmen died within minutes and "only a few of us made it".

That the freighters are armed with Spatial charges is established in "Night", but the lack of them since this episode indicates that at least some freighters are not in fact equipped with these weapons. The power of these devices seemed quite impressive, and I have rated them accordingly.

An very minor but interesting nit - Fesek refers to "freighters of this gradient" in the episode. I think he must have meant "grade", as in the quality or class of ship. In the US people refer to a slope as a "grade", short for gradient, and I suspect the actor or writer substituted the word by mistake.

© Graham & Ian Kennedy Page views : 44,461 Last updated : 12 Mar 2013