Errata - that difficult subject
- Thread starter vraymond
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mctesla
SOC-10
Hard Times vs. One Small Step vs. Herbert's revision
Don,
Has anyone looked at the low tech drives design process at all? Between Hard Times, the One Small Step article from Challenge, and George W Herbert's post to the TML (21 Feb 1992), is there a definitive version that should be in the errata?
mega:
Don,
Has anyone looked at the low tech drives design process at all? Between Hard Times, the One Small Step article from Challenge, and George W Herbert's post to the TML (21 Feb 1992), is there a definitive version that should be in the errata?
mega:I know about Hard Times, and the One Small Step article... can you point me at the TML posting?
E-mail it to me at don.mckinney@gmail.com, please?
Thanks!
It's all in the math. Look at the table
a)TL 9 - 12: Fusion output is 2 and burns 0.003 KL/Hour
b)if you want an output of 3 (like TL 13 & 14) then 2 x 1.5 = 3 and 0.003 x 1.5 = 0.0045 (you build 1.5 PP modules)
c)if you want an output of 6 (like TL 15) then 2 x 3 = 6 and 0.003 x 3 = 0.009 (you build 3 PP modules)
Line b) with it's value of 0.0045 rounded off to three places (0.005) is simply the TL 13 and 14 lines in the Power Supply table.
What the table is saying is that no mater what the TL, 1 KL of hydrogen will produce the exact same amount of energy. You only get more energy from table 2 Scale Efficiency. Increased TL allows you to build a smaller power plant to produce the energy, it doesn't change the fuel to energy equation.
It's late, but I hope I've show you the math.
-Swiftbrook
mctesla
SOC-10
Done. The text of the posting should be in your inbox.
Got it, and I've also sent an e-mail to the gentleman... a later posting alluded to some additional fixes.
It's all in the math. Look at the table
a)TL 9 - 12: Fusion output is 2 and burns 0.003 KL/Hour
b)if you want an output of 3 (like TL 13 & 14) then 2 x 1.5 = 3 and 0.003 x 1.5 = 0.0045 (you build 1.5 PP modules)
c)if you want an output of 6 (like TL 15) then 2 x 3 = 6 and 0.003 x 3 = 0.009 (you build 3 PP modules)
Line b) with it's value of 0.0045 rounded off to three places (0.005) is simply the TL 13 and 14 lines in the Power Supply table.
What the table is saying is that no mater what the TL, 1 KL of hydrogen will produce the exact same amount of energy. You only get more energy from table 2 Scale Efficiency. Increased TL allows you to build a smaller power plant to produce the energy, it doesn't change the fuel to energy equation.
It's late, but I hope I've show you the math.
-Swiftbrook
Yes, you did. I wish you had posted last week, but I'll try and remember this for next time...
I did get this, but it almost deserves its own treatment... At the moment, it's in the collection of files of big fixes to MegaTraveller. I really need to sit down with that... and chop them up better. And post those trade fixes I cobbled together in '91.
I am looking at the errata & I have 1 question (so far):
Radio detection finders - If Radar detection finders only go to tech 12, why on earth are we going to tech 17 for radio detection finders? Do we really need to worry about something that draws 100 watts at tech 17 for craft design?
Radio detection finders - If Radar detection finders only go to tech 12, why on earth are we going to tech 17 for radio detection finders? Do we really need to worry about something that draws 100 watts at tech 17 for craft design?
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Pg 81 Step 3, Computers
On the new clarification, would it not make more sense to put the last 3 sentences with step 4 (Control Panels)? It makes more sense to put it there, since those sentences are talking about the control panels.
Drop Capsules: I think the text would fit better about pg 60 underneath subordinate craft. Otherwise, you have 2 pages of text in the charts.
On the new clarification, would it not make more sense to put the last 3 sentences with step 4 (Control Panels)? It makes more sense to put it there, since those sentences are talking about the control panels.
Drop Capsules: I think the text would fit better about pg 60 underneath subordinate craft. Otherwise, you have 2 pages of text in the charts.
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Major B
SOC-14 1K
I agree it should move, but maybe to the Imperial Encyclopedia rather than the RM.
When I get settled from this move I'll draft an amendment.
Hmm... I figured computers, as otherwise, I put a computer in, then move to control panels, and find out I don't need a computer..
MajorB is probably right about moving this to the IE. Any suggestions on where?
I am adding the errata to my copy of the Referee's Companion and I have run into a roadblock with the Travel Formula.
1. I am assuming the following (since it isn't explicitly stated - please correct me if I am wrong.):
T=Time in Days
D= Distance
A=Acceleration
4.32 - I am assuming that this is a constant. (Sure would be nice to know what it is...)
Do we know if the In-System Travel times are based on the formula that is listed in the RC on pg 23 or if they are based on the formula in the errata?
If the formula in the book was used to generate the table (32.4), the entire table will need to be regenerated.
I really don't want to recalculate that table, especially since I have no idea how to do this in excel. There are definitely errors in the table - (Lines 0.04 and 0.05 have the same times for both 3G, 4G & 5G. There are other duplications, but those are the first that I noticed.)
I'll have to put this chapter aside until we know.
1. I am assuming the following (since it isn't explicitly stated - please correct me if I am wrong.):
T=Time in Days
D= Distance
A=Acceleration
4.32 - I am assuming that this is a constant. (Sure would be nice to know what it is...)
Do we know if the In-System Travel times are based on the formula that is listed in the RC on pg 23 or if they are based on the formula in the errata?
If the formula in the book was used to generate the table (32.4), the entire table will need to be regenerated.
I really don't want to recalculate that table, especially since I have no idea how to do this in excel. There are definitely errors in the table - (Lines 0.04 and 0.05 have the same times for both 3G, 4G & 5G. There are other duplications, but those are the first that I noticed.)
I'll have to put this chapter aside until we know.
I'm not finding this, but perhaps my printing has it corrected. No, can't see it in my first printing RM either. Can you point me at a couple of occurrences?
What's interesting is that Starship Operator's Manual doesn't use this table, and TNE has a different table. Any suggestions?
Bk2 shows:
Note that no proof from the physics d=at2 is given (but it is correct for a midpoint-flip continuous burn)... and proofing that would be nice...
But anyway. conversion to using hours 3600Th=Ts
So...
3600Th=2√(D/A)
3600Th/3600=2(√(D/A))/3600
Th=(√(D/A))/1800
Moving the divisor under the radical squares it:
Th=√(D/A)/3240000
Th=√(D/(A*3240000)
Then to Ag using traveller-standard 10m/s2 G's
Th=√(D/Ag*10*3240000)
Th=√(D/Ag*32400000)
that 32.4 is a consolidated conversion to hours and G's and millions of km, using G=10m/s2
T=2√(D/A)
D=AT2/4
A=4D/T2
A=m per s2
T=sec
D=m
D=AT2/4
A=4D/T2
A=m per s2
T=sec
D=m
Note that no proof from the physics d=at2 is given (but it is correct for a midpoint-flip continuous burn)... and proofing that would be nice...
But anyway. conversion to using hours 3600Th=Ts
So...
3600Th=2√(D/A)
3600Th/3600=2(√(D/A))/3600
Th=(√(D/A))/1800
Moving the divisor under the radical squares it:
Th=√(D/A)/3240000
Th=√(D/(A*3240000)
Then to Ag using traveller-standard 10m/s2 G's
Th=√(D/Ag*10*3240000)
Th=√(D/Ag*32400000)
that 32.4 is a consolidated conversion to hours and G's and millions of km, using G=10m/s2
I think I have the 1st printing. Make sure you're looking in the 1st printing Imperial Encyclopedia. It's just the letters "UPP" instead of "UWP". UWP is in the description at the top of the page but UPP appears at the top of each column.
Yep, it's there.
-Swiftbrook
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