The whole FUEL is a "cluster" ... the fact that a Power Plant B requires 10 dT of fuel in a 400 dTon ship, 20 dT of fuel in a 200 dTon ship and 40 dt of fuel in a 100 dT ship is a "feature" that should not have survived past the first draft of the 1977 rules ... let alone still be part of the The Traveller Book in 1882 and Starter Traveller in 1983. Same PP, but the smaller the HULL you place it in, the more FUEL it consumes
I dispute this interpretation.
The first fallacy is the notion that the power plant fuel requirement dictates the fuel consumption rate over time.
IT DOESN'T.
Instead, the power plant fuel requirement is intended (although the RAW never spells this out adequately, so you have to read between the lines in order to realize it) to act as a "buffer" for safety margins in routine operations.
I'll grant that the way LBB2 "works" this issue (the 10Pn rule) is ... clumsy ... but it works.
Like the saying goes ... "Stupid but works may be stupid, but it still works."
With respect to
@atpollard ... this is the reason why I prefer to "hybridize" LBB2 power plant performance and fuel consumption with LBB5.80 (for EP rules) and with Beltstrike (for fuel consumption rules). The net result is that ACS wind up having longer endurance than a "mere 4 weeks" while BCS wind up having a shorter endurance (sometimes just a mere 2 weeks with limited maneuver capacity).
A 3000 ton starship with a Power Plant-Q yielding code: 1 @ 3000 tons would generate EP=30 and require 10 tons of power plant fuel (per LBB2 fuel rules).
A 3000 ton hull requires 3000/2000=1.5 tons of basic "housekeeping" fuel consumption per week.
A Power Plant-Q going "full blast" generating EP=30 continuously would consume 30*0.35=10.5 tons of fuel consumption per week.
So a 3000 ton starship with these basic parameters could allocated 2 weeks of basic power (1 week in jump, 1 week in normal space = 3 tons of fuel consumption) and have 7 tons of fuel remaining for maneuvering, which would be sufficient for 4d 16h of maneuver at full power between refueling cycles.
Under MOST circumstances of "bulk transport starship" operations ... that's really all you need when jumping between star systems as a (LBB2) small ship universe megafreighter on a pre-planned route.
Is it "ideal" ...? No.
Does it get the "job done" with adequate margin for safety ...? Yes. Yes it does.
What happens when you drop tanks on something with Pn4 and the drive rating goes above 6 on the core hull?
What you're asking for:
What actually happens:
Whoopsie ... 
