Nobody can shift three cubic yards of dirt per hour for eight hours straight with manual tools, if manual tools actually means manual (ie hand - manus - tools like a shovel and spade) and we assume they’re not just shifting a pre-sifted pile slightly to one side in low grav.
Someone fit with good gloves might manage a decent percentage of a single cubic metre in an hour (and thus a larger percentage of a cubic yard).
Sorry I was doing my calculation in cubic feet originally, I should have replaced the 27 with 1 when I converted to cubic yards. The rest of the values are numbers are correct). We are talking about 1 cubic yard per SHIFT of 8 hours or 3-4 cubic feet per hour (including rest stops etc.)
I didn’t quote the entire two pages of text and tables but the chart I used does mention every advantage (robots, laser drills etc) you mention. I can’t come to the Mongoose forums and break their copyright with multi-page quotes.
If you are not willing to quote rules you could quote page references as we don't know what special circumstances you have applied if you don't share them. Which chart for example. You could have set out your maths in your response just like I did. Then it can be examined and verified if necessary (and typo's identified). You are not breaking copyright by putting some maths down.
It seems that we are talking at cross purposes as I was talking about a 100 DTon capacity Landing Area (which was stated in my post) on P185 and you were talking about the specific 400 DTon landing field on p82. Had you said that we were talking about different things then we might have avoided this.
For the avoidance of doubt I was refuting your assertion and I beleive the "the figures aren't insane". Nothing else said here has convinced me otherwise.
But comparing apples with apples. The base 40,000 PWH is still based on 100 PWH per ton, which is credible for hand tools.
Highly skilled reduces by half which seems fine.
Advanced Tools reduce it by a factor of 4.
Robots reduce it by a factor of 10 (though it doesn't say how many or what sort of robots) and I am not sure how these are supposed to interact and suspect that you can only apply the best tool modifier so the advanced tools are trumped by the robots. This is a somewhat arbitrary multiplier are we talking about half a dozen small excavator bots or a single labour droid with a shovel. If the robots are just those Labour Droids they they have to have supplied tools and giving them advanced tools doesn't seem unreasonable (which would multiply their already higher PWH to 12-14 if we were counting them as separate units). If they are dedicated construction droids however then I suspect they come with the equivalent advanced tools built in and that contribution is already factored in.
Of course as my strip is just a 1/4 of the landing field we could multiply the time I came up with by 4 so the Landing Field would be 16 days for those 19 cheap bots.
By all means argue with the rule book (as we’ve discussed already in this thread, they’re poor) but if you want to correct my interpretation then at least buy and read them.
As you can see I did buy Pirates of Drinax and I have the read them (not necessarily committed all of it to memory of course so I am as liable to error as anyone else). I even used them to build a base. I just treated my robots as discrete units rather than have them be an equipment multiplier as I found that easier to calculate how much they would be costing and what the logistics of it all were.