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17:57, 18th May 2024 (GMT+0)

The campaign restarts ! (OOC)

Posted by GM RegisPFor group 0
Danila Bodrov
player, 10 posts
Sun 17 Sep 2023
at 15:54
  • msg #62

The campaign restarts !

In reply to Nicodemus Trask (msg # 61):

Sun's escape velocity at the Earth orbit is 16.6 km/s (in relation to the Earth), or about 46 km/s in relation to the Sun.
The 600 km/s you are talking about is on the Sun's (visible) surface.
This message was last edited by the player at 15:57, Sun 17 Sept 2023.
Nicodemus Trask
player, 64 posts
Sun 17 Sep 2023
at 16:00
  • msg #63

The campaign restarts !

True. It's of no matter, anyway. As the ship we're on, and the universe we're in, adheres to real physics when it's necessary or convenient.
Carmichael
player, 106 posts
Sun 17 Sep 2023
at 20:44
  • msg #64

The campaign restarts !

Do we... well, does Jared...  even know of our doctor's predicament with the shotgun wielding passenger?
Sven Glanz
player, 26 posts
Look and ye shall find
Sun 17 Sep 2023
at 23:57
  • msg #65

The campaign restarts !

Nicodemus Trask:
In reply to Sven Glanz (msg # 59):

That's exactly the point. In order to be in the same orbit as the planet, the ship has to match the speed of the planet. If the ship has matched the speed of the planet, it can't approach the planet. Slower than the planet results in centripetal force lower than the gravity of the star and the ship accelerates towards the sun. Faster than the planet results in centripetal force greater than the gravity of the star and the ship accelerates away from the sun. As the ship was moving towards the planet, it would only have been able to strike the planet if it were coming in at some angle to the orbital plane and had the precise speed to meet the planet on the orbital path. In all of these situations, the easiest way to avoid a collision is to just slow down.

I think some terms are getting miss applied. If the ship is "in the same orbit as" the planet, then it would be the same distance from the star, moving the same direction along the same path (in traveller, that is simplified to a circle around the star). However it can also be in a position that is about the same distance from the star, currently moving along that path, but at a significantly higher velocity. That is sometimes described as "in the orbit of" the planet. In the longer term, that would be a completely different orbit (and not a circle). As you say, the ship would move further away from the star. As long as it does not hit something before that happens. In the short term that path can approximatly match the path the planet is taking. To avoid crashing in that case, slowing down only works if you can slow down "a lot". Slow down enough to be slower than the planet in its orbit. Going from 80km/s relative (approach) velocity to 78km/s is not enough.

Latest information is that the ship is going to miss the planet without any change in velocity. Just noting that slowing down 'just a little' is not always going to be the way to avoid crashing. Just as a vehicle coming over a hill at high speed can suddenly find a slow moving vehicle in the way. Stopping in time (especially if the brakes fail) may not work. Going around can be the only solution. Yes the curved path of both ship and planet make this different. In the short term, not enough different.
GM RegisP
GM, 41 posts
Mon 18 Sep 2023
at 20:08
  • msg #66

The campaign restarts !

Baris, Trask, Yuri, I'm going to delete your posts and re-post it when the combat is over.

Baris, did you read msg#45, the part that says "(trask) projected himself in the corridor, while listening to Dorabue's claim to leadership.". Baris is on the bridge. Trask is in the corridor. Baris listens to the animated talk between Yuri and Charmichael, and when he turns to Dr. Trask, he notices Trask is not there.

Trask, do not encourage Baris to assume you're quantic, in two places at once! ;)

Yuri, I know I told you to act, so my apologies; ;) Don't act until the fight is over, but you may still discuss...
Wade Wilder
player, 4 posts
Wed 20 Sep 2023
at 11:24
  • msg #70

Re: The campaign restarts !

Sven Glanz:
@Wade, with your character's history, how reasonable is it for Sven to recognize Wade, or Wade to recognize Sven? from events in eIther Wade's or Sven's careers. Going backwards, opportunities for Sven, likely all in or very close to Florian League space:
  • Merchant Marine: gained a contact «not Wade, but he could have been present, or a trigger»
  • Merchant Marine: failed smuggling attempt
  • Merchant Marine: a good deal (extra benefit roll)
  • Merchant Marine: failed smuggling attempt
  • Scout: psychologically damaged
  • Univeristy: political movement
  • Agent: learned something he should not have.
Scout could have been further out, since he was with exploration branch.

Very reasonable! I think you could pick an option from any of Wade's terms (similarly, going backwards, and paraphrased because I don't have my book with me right now):-

[*] Agent/Intelligence: worked for a corporate enterprise - Wade "knows how & where to get things"
[*] Scout/Explorer: performed a good service, gained a Rival
[*] Scout/Explorer: found his way into somewhere he wasn't allowed, and gained some priceless intel for the Scouts
[*] Scout/Courier: surveyed an alien world after crash-landing on it
[*] Scout/Explorer: broke off a romantic relationship
Sven Glanz
player, 28 posts
Look and ye shall find
Wed 20 Sep 2023
at 19:28
  • msg #71

The campaign restarts !

Wade Wilder msg #70:
Very reasonable! I think you could pick an option from any of Wade's terms (similarly, going backwards, and paraphrased because I don't have my book with me right now):-

With that history, both Sven and Wade have travelled a lot, so lots of opportunities to cross paths. The way I understand the connections rule, the event does not need to match both characters events for the term. Only one character, and the other has an opportunity to be present, even if it has nothing to do with the event for their term.

How about 3 terms back then? Sven arranged a good deal, and met Wade while celebrating? Wade happened to be in port at the same time. Location anywhere in or around the Florian League that Wade's scout travel could have brought him. Is Wade Imperium? For IISS, Florian League might be part of the 'exploration' function. For a Florian scout, it would be while back at 'home base'. I also see the https://wiki.travellerrpg.com/Florian_Corridor (Florian Corridor), at the far side of Florian League space from Tanar, which is used by the Imperium. A reasonable place for a Florian Merchant Marine to meet an IISS scout/explorer.
Wade Wilder
player, 6 posts
Wed 20 Sep 2023
at 20:36
  • msg #72

The campaign restarts !

Yes, Wade is IISS so that all fits perfectly - given how his career has turned out, Wade might have been in on the deal, either providing a business contact or insider knowledge. The mutual celebrations might then have led Wade to gather some useful information (perhaps from someone intoxicated), which he then used to his advantage ("performed an exemplary service for the scouts", and gained Stealth 1 skill).
Sven Glanz
player, 29 posts
Look and ye shall find
Thu 21 Sep 2023
at 00:16
  • msg #73

The campaign restarts !

I was actually thinking a casino, with Sven's Gambling skill. Though could be lots of intoxicated people there other than Sven. Depending on the world, the casino might be someplace that Wade was not supposed to get into. (Or a 'front' for, or next door to that). Sven did not win big that time, but managed to break even. He was up enough at one point to get some attention. Pending post will allude to the gambling.
Carmichael
player, 108 posts
Fri 22 Sep 2023
at 04:31
  • msg #74

The campaign restarts !

No weapon, I do not typically run around on the space ship with gun or blade but rather a Tool Kit ;).
I just intended to grapple the passenger, disarm and restrain him.
Sven Glanz
player, 36 posts
Look and ye shall find
Sat 23 Sep 2023
at 22:38
  • msg #75

The campaign restarts !

Baris Dahl:
I will be laying charges of mutiny with the port authorities once we have settled

That would be attempted hijacking, since he was not part of the crew. Since he said 'his planet', he could be in trouble under local law as well.
Baris Dahl
player, 102 posts
Navy Scout Drifter
UPP: 222CCC
Sun 24 Sep 2023
at 05:31
  • msg #76

Re: The campaign restarts !

In reply to Sven Glanz (msg # 75):

Tweaked
Sven Glanz
player, 38 posts
Look and ye shall find
Sun 24 Sep 2023
at 08:23
  • msg #77

Re: The campaign restarts !

For the time and distance calculations:

This ignores the effects of gravity from Tanar's star. Since each of the planet, OLH and TPoT are at about the same distance from the star, they are all affected (accelerated) almost identical amounts, in almost identical directions. That does not change anything for matching velocity.

I also ignore the effect of Tanar's gravity on both OLH and TPoT. See below for my calculations on how small that affect would be. I leave the planet as an obstacle to avoid, delaying TPoT a little. When dealing with ships using Thruster plates (continuous boost), even close by planets have little effect. The Traveller books ignore that in provided tables for simplification. So do I.

Times below are shown in seconds, then converted to more readable values. Time 0 is when OLH exited jump, and promptly lost power. Velocities are shown in km/sec. Distances are shown in thousands of km (rounded). Positive distances are from the planet (Tanar) toward OLH's jump exit point. Negative distances are past Tanar. That is not a straight line, due to the course being bent by the close pass through the gravity well, but that does not matter for the calculations. It is only a distance without a direction. 1G acceleration approximated to 10 m/s^2.

Timeline
TimeOLHTPot 
Sechh:mm:sskm*1000km/skm*1000km/sNote
000:00:0011468000Jump Exit
60000:10:0010988000report from traffic control
210000:35:0010268000TPoT gets underway at 2G
466301:17:439608000TPoT gets clear of the planet
749102:04:516408080-57TPoT reverses direction
1032002:52:00320801600TPoT stopped relative to Tanar
1432003:58:40080080TPoT matches velocity with OLH
1612004:28:40-14480-14480TPoT dock and rig for towing; start 1G decel
2412006:42:00-4640-4640TPoT and OLH stopped relative to Tanar
3093208:35:32-232-68-232-68TPoT and OLH max v back toward Tanar
3774410:29:040000TPoT and OLH stopped above starport
3954410:59:040000TPoT and OLH land

2G for 4000 seconds is 80km/s and 160000km travelled, while 80km/s moves 320000km
Tweaking the delay before they get underway, and how long it takes to get clear of the planet will adjust whether the rendezvous is a bit before or a bit after OLH's closest approach to the planet.
1G for 8000 seconds to slow from 80km/s moving 320000km in the process, when TPoT is stopping OLH.

For more detailed gravity calculations:

Mentioned previously,
Fgrav = ( G * m1 * m2 ) / d2
That gives the "force" pulling the masses toward each other. Both masses will be affected. from f = m * a, shuffling gives a = f / m. The force is the same, so each mass has a different acceleration.

The acceleration due to gravity on the surface of a planet or celestial body depends on its mass and radius. The formula to calculate the acceleration due to gravity (g) is:

g = (G * M)/R2
or
a = (G * m)/R2

When one mass is negligible compared to the other, the small mass will be "accelerated" toward the larger mass due to gravity with that formula

Where:
  • g (and a) is the acceleration due to gravity.
  • G is the universal gravitational constant (approximately 6.67430 × 10-11 m3/kg-1 s-2
  • M is the mass of the planet or celestial body.
  • R is the distance from the centre of the planet to the point where you want to calculate the acceleration due to gravity
Reorganizing,
(a * R2) / G = m

For Tanar:
  • a = 0.88g (.88 of a standard one earth gravity) = 8.8 m/s2
  • R = 5600km (half of diameter of 11200km) = 5600000m
So
mTanar = (8.8 * 56000002 / G = about 4.13*1024 Kg

We could now plug that back into
a = (G * m)/R2
to calculate the gravitational acceleration at a different distance (R) from the centre of the planet. However, instead of working with big numbers again, the mass expression from the surface gravity can be plugged in instead of the calculated value.
a = (G * [(8.8 * 56000002 / G)]/R2
"G" is in that twice, and cancels out
a = (8.8 * 56000002)/R2 m/sec2
a = 275968000000000 / R2; were R is in meters. Converting
a = 275968000 / R2; where R is in Km.
To test that, the surface is 5600Km (half the diameter) from the centre of the planet, so
asurface = 275968000 / 56002 = 275968000 / 31360000 = 8.8 m/sec2 = .88g

At that 50000Km exclusion limit
a = 275968000 / 500002 = 0.11 m/sec2 or 0.011g
At the jump limit where OLH came out,
a = 275968000 / 10976002 = 0.00023 m/sec2 or 0.000023g
I do not have the equation handy that would change
v1 = v0 + a*t
into an equation that handles "a" changing from 0.00023 to 0.11 m/sec2 over the course of 3.5 hours (I think that needs an Integral), but even using the final (maximum) acceleration for the whole time:

v1 = 80000 + 0.11*12520 = 81377.2

So the change in speed due to Tanars gravity is negligible. I ignore it, as do the transit time tables in the Traveller books.
This message was last edited by the player at 01:06, Tue 26 Sept 2023.
GM RegisP
GM, 50 posts
Tue 26 Sep 2023
at 21:48
  • msg #78

Re: The campaign restarts !

Thank you Sven Glanz!

Well isn't like the math problems that always fascinated us? "Two trains start in opposite directions. Train A has this speed, train B has that speed, when will they meet?" except here, Train A decelerates (a little), train B accelerates then reverses to catch up train A ;)

Here are the figures that should help you for your next calculations: :)

- the OLH (I let you estimate when they started) decelerated for 20 minutes at 1G. What is their new speed and how far are they from Tanar?
- the PoT "a slightly older donated cutter", is capable of 5g. They have a 20 minutes delay for launching and getting clear of the planet (combined). They won't "tow" the OLH. They'll dock with it, hold it with grapples, and decelerate all together. :)
(you don't have to calculate the +30% change in mass. It just will happen)
- ignore the planet. Space is HUGE and odds are against crashing on the planet. They always were :)
- the PoT crew is fairly competent and determined
- the time to dock... depends on the Daphne's next roll, but should be 1D minutes. :)
This message was last edited by the GM at 07:45, Wed 27 Sept 2023.
Sven Glanz
player, 39 posts
Look and ye shall find
Wed 27 Sep 2023
at 00:15
  • msg #79

Re: The campaign restarts !

With that extra detail, here is a scenario timeline that matches. This only uses the basic distance and velocity formulas
s1 = s0 + v0 + 0.5 * a * t2
v1 = v0 + a * t

Elapsed TimeOld Lady's HopePride of Tanar 
Sechh:mm:sskm*1000km/sgkm*1000km/sgNote
000:00:001146-800000OLH exits jump
60000:10:001098-800000report from traffic control
60000:10:001098-800000traffic control calls spaceguard
60000:10:001098-800000OLH starts searching for energy
120000:20:001050-800000OLH finished locating energy sources
120000:20:001050-801000OLH starts declerating
180000:30:001003-741000TPoT clear of the planet
180000:30:001003-741005TPoT starts accelerating
240000:40:00961-6819305OLH stops slowing
501301:23:32783-6802581615TPoT stops accelerating
502301:23:42782-6802601610TPoT turn over (flip)
823602:17:15564-6805180-5TPoT stopped relative to Tanar
959602:39:55471-680471-68-5TPoT Matches OLH orbit
1312903:38:49231-680231-680Final matching, docking, grappling, waiting
1992905:32:09001001TPoT brings OLH to orbit Tanar

EDIT: GM RegisP pointed out an error in the previous version of the table at time=2400. Rechecking, the distances and velocities all seemed to be correct. I think the problem was the descriptions. I have now added to the table, to show additional 'zero elapsed time' entries when things are changing. So there are 2 entries at time=1200. The first showing the end of the task searching for energy while in free fall, then anoher showing the start of slowing at 1g. Similar multiple entries for a single time in other locations

That 20 minutes at 1 g slows OLH from 80 km/s to 68 km/s. With that, TPoT can match orbit much further away from Tanar, and needs to do less work to slow OLH down the rest of the way. If it takes longer than 58 minutes 53 seconds to finish setting grapples, and starting deceleration, TPoT will need more than 1 g to bring OLH directly to Tanar orbit, instead of going past and coming back. Once docked, and have the power cable run over to provide some power, TPoT is probably in no rush. That should provide power for life support, and possibly enough for the grav plates. Use the extra time from that hour to verify everything is correct, then decelerate at 1 g directly to Tanar orbit. If the grapple orientation is correct, that would mean that OLH does not need to use power to compensate for the acceration.

For fun, here is what it could look like without a power failure, with a 1g transit from jump to Tanar.
TimeOLH 
Sechh:mm:sskm*1000km/sgNote
000:00:001146-800OLH exits jump
30000:05:001146-800check sensors to verify position
430201:11:41721-120-1accelerate toward Tanar
431201:11:51720-1200pause for turn over
831302:18:33320-801slow back to speed at exit
1631304:31:53001slow to orbit Tanar

Using 2g reduces the 4.5 hour transit to 3:25:10. 3g is 2:53:50. If the exit velocity was zero, the times for 1, 2, 3g would be: 6:01:46, 4:17:16, 3:30:59. Those last number are close to the 1,000,000 km transit times shown in the core book.
This message was last edited by the player at 19:42, Wed 27 Sept 2023.
Sven Glanz
player, 47 posts
Look and ye shall find
Mon 9 Oct 2023
at 20:03
  • msg #83

The campaign restarts !

With 28 minutes from the time the ships were connected, assuming another 15 minutes for the described manoeuvres to align the ships, deploy the tube, and connect to the airlock, plus any delay after the hatches were locked again before deceleration started, here are updated calculations.

Elapsed TimeOld Lady's HopePride of Tanar 
Sechh:mm:sskm*1000km/sgkm*1000km/sgNote
959602:39:55471-680471-68-5TPoT Matches OLH orbit
1217603:22:55296-680296-680dock, inspect, transfer
2088205:48:01000.78000.78reach Tanar oribit

With a little earlier start, using less deceleration, reaching orbit takes a little longer. I assume this was chosen to reduce strain on the carried ship, and on the linkages between the ships. If desired, that could be further reduced by using less than .78g. That would not get stopped until past Tanar, needing additional time to get back again. .5g would get stopped 166000Km past Tanar. With that, reaching orbit would be at time 10:22:53.
Carmichael
player, 113 posts
Wed 11 Oct 2023
at 05:08
  • msg #84

The campaign restarts !

Jared's comment on the bill was to the second-in-command / first officer who said the sum out loud.
Jared would not take that bill out of Beto's hands just like that ;).
Same so about the facilities.

The rest about the vac suits was supposed to be addressed to the Captain.

Jared does not talk to Sandstrom unless specifically asked to. He does not rate her to have any knowledge about technical aspects of space vessel operation.

Sorry, should have made that clear.

That being said, I'm not quite sure whether we are all on the bridge hearing that discussion about Baris' failures but for contribution's sake I just assumed we are :D
Baris Dahl
player, 112 posts
Navy Scout Drifter
UPP: 222CCC
Thu 12 Oct 2023
at 04:51
  • msg #85

Re: The campaign restarts !

I'm struggling with the GMing style in the reboot, so best remove me as a player, please

Good luck folks, Baris has hopefully left you with an out from this situation
GM RegisP
GM, 64 posts
Fri 13 Oct 2023
at 18:30
  • msg #86

Re: The campaign restarts !

In reply to Baris Dahl (msg # 85):

Yes I get it. Things are difficult for Baris, who seems to be in hell.

Once, I played in a campaign of Runequest. My character was disfigured in the Heroes' plane (changing his name from “Murdu WiseFisher” to “Ugly Murdu”). But what happened was that I became more attached to him because he survived the ordeals and had a heroic history! :)
- I admit that’s of course only my point of view.

What I want y'all players to know is : you may always PM me to rant. One on one exchanges evolve better than public. I don’t count how many hours Sven’s player and myself have spent butting heads, exchanging arguments, confronting points of view and telling the other what was wrong in his posts (!) ;) … Some of his points made me adapt and backpedal. Same went, to a much lesser degree, with Danila’s player. Fortunately they are understanding and patient.

So yes, I’m going to throw obstacles for you to overcome, in a sneaky way :) “victory without risk brings triumph without glory.” And yes, when you give me a stick, I’ll beat your character with it :)

Once, **IN A LARP** (!), a player boasted to another, that her trade had made her extremely rich and look at those coins she was carrying. Other players overheard that FOR REAL, and soon she was knocked out and robbed by thieves PCs… So when your GM has thieves attack your PC, that’s kind of logical :)

There are reasons why the NPC act like they do - yes even Xanara (maybe you’ll discover it). And maybe in the future you will wish to meet the High Judge to request an intervention, now you know how nasty she is. There’s a plan ;)

To reduce your hardships, I have fun inserting Easter eggs and references. Hope you spot them ;)
Anyway… PM me whenever you want to discuss or rant. :)
GM RegisP
GM, 65 posts
Sat 14 Oct 2023
at 12:53
  • msg #87

Re: The campaign restarts !

There’s an article by the great Ben Robbins here:
https://arsludi.lamemage.com/i...-to-explain-failure/.

It states that tasks/skills/tests failures should be emphasized. Augmented. Considerable and the stuff of legends. :) Just read it. Great article and good comments from players liking when their characters fail :)

Sven and Danila both have rolled "snake eyes" when trying to speak to the accusing bodyguard, yet their total are 6. That's just an "average" failure, not an "exceptional" one. :) The bodyguard just does not listen to them, while according to Ben Robbins all failures have to be spectacular, where the bodyguard would totally misunderstand and fight them or so. The Traveller rule system protects the PCs! ;)
Danila Bodrov
player, 18 posts
Sat 14 Oct 2023
at 15:03
  • msg #88

Re: The campaign restarts !

I haven't read the article yet (but will) but I guess what it is about. However, here we are delving into probability theory and suspension of disbelieve. Spectacular failures, fumbling, shooting yourself in the foot and car accidents do not realistically happen that often as Snake Eyes.
GM RegisP
GM, 69 posts
Mon 16 Oct 2023
at 20:52
  • msg #89

Re: The campaign restarts !

Thanks to Sven's player, here's a kind of split screen between the two groups

TimeOLHTanar
16:45:00PoT leaves orbit at 5GXanara closes office early
16:55:00OLH ends decelerationcar parked next to the Bar-y-center
18:54:55PoT connects to OLHMah-Jong games ended
19:22:55PoT with OLH start 2G toward TanarCommotion at the high rollers table
21:08:20PoT with OLH in orbit 10K km 
22:30:00PoT lands 

So the "Xanara" Travellers are 3 hours "behind" the "Karolsdottir" Travellers, and shall be given my attention... However, that also means that the crew of the OLH also have three hours free, and may state what they want to do... :)

For meta-game reasons that I am going to develop in the next few days, I'll delay the actions about trade, finance, salaries, ... until Thursday 19th, when I'll basically hand it up to you, with instructions :)
This message was last edited by the GM at 21:14, Mon 16 Oct 2023.
Sven Glanz
player, 51 posts
Look and ye shall find
Mon 16 Oct 2023
at 22:59
  • msg #90

The campaign restarts !

@Danila The information you seem to have referenced for the IG post is based on details that would not be public. As far as Sven is concerned, all of that would come under Doctor, patient confidential. Unless it became a public health issue. It would be displayed on his DD/R, not on the tablet holographic display. Even Sven does not 'know' that it is not poison. There is that other 10% to consider (more likely than snake eyes). Sven's public statements would be vague about continuing assessment, and if pushed get more blunt about confidentiality. Enough to keep things (especially the bodyguard) calm. He will definitely try to avoid saying anything that the 'news' could twist into another bulletin. Just change "did" to "do" in the question covers it.

Depending how it gets presented, some of that could come out when Sven updates the arriving paramedics. That might not be as private.

With the timing, Sven was rather busy when Xanara was shaking her head to poison. If he had seen that, he would figure it was because poison is very much a "don't", and she does not expect a Tanarian to use it, or even be able to get it locally. Based on that (do's and don's), Sven would also tentatively say that the bodyguard is not a native. Probably came with domina Hoheel when she retired here from Vadada.
This message was last edited by the player at 23:14, Mon 16 Oct 2023.
Countess Daphne Arslan
player, 110 posts
Ex-Navy diplomat aristo
Pilot of the Old Lady
Wed 18 Oct 2023
at 09:54
  • msg #92

The campaign restarts !

Hello, everyone! I will be playing Countess Daphne.
GM RegisP
GM, 72 posts
Thu 19 Oct 2023
at 14:22
  • msg #94

The campaign restarts !

Tomorrow I’ll have a game. From the 21st to the 17th of November I’ll participate in a RPG creation challenge called the (French) Threeforged Challenge, where I’ll be assigned someone else’s game, then double the words of it, and again in the third forge. I’ll need to focus on that. :)
So, my rate of GMing is going to be slower than it already is. Here are some things to keep you busy.

1 - salaries. It’s been 5.5 weeks since you were. The ship needs to pay its crew their monthly salary. How long is a month? 30 days? 4 weeks and the year is 13 months? (if you can’t find the info, then it’s the second choice). Oh and a player needs to do the accounting (and after Bannacor leaves, the PC who does the accounting IC gets a +1000Cr bonus)

2. preparing a new route ; 3. look for freight ; 4. look for millions - I'll post in the Vadad - Tanar thread :)
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