Now Battletech.RPG aka Mech Factory's version, which I rely more on Mech Factory because it rips the data word for word from older released materials rather than relying on users to make up their own way of wording them (and being subject to constant changes by users that feel like changing it)... So while it might not be "current" in terms of retcons, it tells it like the stuff is originally published, in the original publisher's words, rather than whatever company made up retconning nonsense after the fact.
(Think Fallout as made by Interplay, where Fallout 2 gives the entire history of "Jet" the drug as a recent invention by a child prodigy, with the primary ingredient being irradiated two-headed cow...post-consumer product. Now take Bethesda's Fallout 4, which has put Jet into untouched vaults that have been closed since bombs dropped on pre-war America, and filled a specific one that's loaded with a stash of chems that was kept hidden for less than 20 years after the bombs dropped before being "introduced" to the population with hundreds of them with its history as a war time psycho-enhancing drug used for soldiers... That's a complete retcon of the lore... which is what Catalyst did above.)
Edit: Apparently the rabbit-hole above sinks even deeper. Its original actually acknolwedges Powerman's haulermech predecessors as "Buster-Class Hauler Mechs" and that the Powerman is actually a derivative of this. However, the predecessor was never called a Powerman, afterall the predecessor was made by a rival company and
Richard Sitwell's company didn't even exist until 2795. (Catalyst's retcon states the Sitwell-made Powerman was made in 2764 according to Historical Operation Klondike.)
Sitwell corporation, which was founded in 2795... according to both the TRO Vehicle Annex and the
http://www.sarna.net...ell_Corporation Sarna's entry into the Sitwell Corporation, was made specifically by Richard Sitwell to get back at a former employer that screwed him over.... in the end, he screwed them right into bankruptcy with bitter sweet revenge, and his mechs would go on for centuries. Though apparently, according to Catalyst's version, he made his mech 31 years before his company was founded, under his company name... and Richard Sitwell at the time of founding his company was only 34 years old... That's impressive, either he's got time travel or he made a highly successful "Haulermech" at 3 years old.
Also according to the Vehicle Annex written in
Huh. Man they don't look their **** up, do they?
Anyway...
Anyway Mech Factory and the original book states that the Powerman "Loadermech" SC (no numerals) from is 35 tons with 5x 1 ton cargo bays (which fits the picture, as each cargo bay is represented by a spike and the cargo is literally fastened to each of these spikes. I'm actually not sure where they get XI for Mech Factory... the chassis name is Powerlift CXV Standard... So "XV" makes sense but "XI" does not... The original entry has no numeral in the Loadermech's name, as it was the first model in 2795...
This means that unloaded the mech is 30 tons. Fully loaded its 30 + 5 tons in full cargo bays (the 35 base tons) plus the in hand carrying capacity of an additional 35 tons (by the way lift hoists work) so fully loaded it is 70 tons.
Sarna states that the loadermech wasn't added to the MUL. However, it apparently is. Historical: Operation Klondike gives the Loadermech, changing its introduction date to 2764 but calls it the Powerman XI.
HisOK also gives two more powerman profiles, referring to Powerman XI Haulermechs as M and M-B "MOD"s.
Meanwhile the original Haulermech entry has been modified, remaining as claiming to be the Powerman SCV XV introduced in "2895." (Typo?)
Catalyst Gamelabs made this complete retcon in 2010, and the powerman was completely retconned just as an excuse to be able to shove it into Clan space lore. (Why use the XI? If they want to claim it is the 11th model, why not use say the 5th model, the 3rd model, etc? But that goes into a whole new rabbit hole...)
....The original Powerman Loadermech was actually written in 2006 by FanPro [a Wizkidz brand owned by the Topps company] whom owned the game at the time, (so there's only 4 years and already a retcon this hugely inconsistent when Catalyst published Operation Klondike, which Catalyst started running Battletech as Topp's own brand company in 2008...)
So to make Catalyst's version work with the original, change Catalyst's versions of the "older" powerman into Buster Hauler Mechs.
Speaking of which, the name Haulermech was avoided by Richard Sitwell purposefully as a means of spite. As such the Sitwell corporation would never have used the traditional term of "Haulermech". It was also never intended to fulfill the same purpose as a Hauler Mech.
The problem with the solution of taking Catalyst's retcon in light of the original, is that the TRO Vehicle Annex also gave the stats of the 50 ton Buster-class Haulermech.. which was 50 tons, had Robot Jocks style catapillar tracks for the legs in case of leg actuator damage, allowing it to still function even if the leg was rendered useless for walking, dedicated 11 tons to cargo bays (but only 3 mounts meaning it was limited to 3 cargo containers)