HG, page 20, last sentence of the firts paragraph under Technological level:
Equipemente and components of a starship may1 always be equal to or less than the ship¡' tech level
Shouldn't it say "must" instead of "may"?
As I understand the phrase, it means that no component may be of higher TL than the ship's overall, but if the Word used is may it seems to be optional (unless my English is failing me, of course...)
1. It would be nice if you had put something that would let us know where this quote came from.
I'm not disputing the quote (despite the atrocious spelling), as my copy of HG2E does indeed say "Equipment and components of a starship may always be equal to or less than the ship's tech level." - I just would like to be able to look at the original post.
This is indeed a clumsy sentence, and is likely intended to read "must" or "should".
2. I see NO reason why a higher-tech system couldn't be fitted in a lower-tech ship.
Examples:
A. the UK's Weapon class destroyers - 4 were left incomplete at the end of WW2 (TL5) - in the late 1950s their ship-wide electric system was changed from DC (a TL4 system commonly used in many nations during & after WW1, but only by the UK for new ships in WW2) to AC (commonly installed in TL5 warships), and large area-search radars were installed along with computers, air conditioning, and other TL6 systems required to operate as area-control radar ships.
B. USS Chicago (and two other sister heavy cruisers built in WW2 (TL5) - completely rebuilt from the hull up from 1959-64, with all of their guns removed and replaced by 4 SAM missile launchers and associated radar and fire control (all TL6).
C. HMS Exmouth, early 1950s ASW frigate powered by oil-fired boilers and steam propulsion turbines (TL4/5) - in 1966-68 her entire propulsion plant was removed, and replaced by 1 large and 2 small gas turbines (TL6).
I see no reason why, with a suitable interface for essential power & control systems, a higher-tech power-plant, or drive, computer system, etc couldn't also be fitted into a starship - especially during initial construction, but also during a later refit.
Likewise, I see no reason that a drive, etc that is of higher TL than that of the building/refitting shipyard could not be installed, if the item is imported complete and ready to install from another system - and if specialized adaptation instructions (and perhaps a "tech rep"*) are included with the item.
Therefore, I suggest that the sentence should be reworded as "Equipment and components of a starship are normally equal to or less than the ship's tech level, but may be of a higher tech level at increased cost.".
A "per TL difference" cost increase should then be suggested, as well as an "import fee" if the item is of higher TL than the building/refitting shipyard.
*Tech Rep - a Technical Representative is an employee of the manufacturer of a component or system who travels around, providing assistance to installers/users of his company's product.
In my time in the USMC (aviation maintenance) I worked with a number of these, from several different companies. Some were present on long-term assignments and some were there for a "one-time" project.