Search found 3481 matches

by AnotherDilbert
Sun Jan 27, 2019 11:55 pm
Forum: Traveller
Topic: A lot of worlds over 1g gravity. How do 1G thrust ships take off?
Replies: 183
Views: 5655

Re: A lot of worlds over 1g gravity. How do 1G thrust ships take off?

I just realised that if the maneuver drive indeed works by altering the force of gravity on a ship, the mass of the ship is irrelevant (all objects fall at the same speed in the same gravity), and using displacement implies that the drive affects evetything in an area equally. No, M-drives, sometim...
by AnotherDilbert
Sun Jan 27, 2019 11:47 pm
Forum: Traveller
Topic: A lot of worlds over 1g gravity. How do 1G thrust ships take off?
Replies: 183
Views: 5655

Re: A lot of worlds over 1g gravity. How do 1G thrust ships take off?

What ships in Mongoose or T5 have wheels? Neither T5 nor MgT2 describes any spacecraft in that much detail, I believe. (Even if the T5 design system does go into that specific detail.) You've described a reaction drive (ejecting stuff & using newton's 3rd law to propel the ship via equal & opposite...
by AnotherDilbert
Sun Jan 27, 2019 10:51 pm
Forum: Traveller
Topic: A lot of worlds over 1g gravity. How do 1G thrust ships take off?
Replies: 183
Views: 5655

Re: A lot of worlds over 1g gravity. How do 1G thrust ships take off?

It's quite simple, you use Tsiolkovskys Rocket Equation: That assumes a reaction drive. It assumes that we continuously change mass (by expelling propellant) as we accelerate with constant thrust. I think the result is the same if we continuously change mass by burning fuel in a fusion reactor and ...
by AnotherDilbert
Sun Jan 27, 2019 10:47 pm
Forum: Traveller
Topic: A lot of worlds over 1g gravity. How do 1G thrust ships take off?
Replies: 183
Views: 5655

Re: A lot of worlds over 1g gravity. How do 1G thrust ships take off?

Moppy wrote: Yes, but it needs a runway and as we've seen, Free Traders don't have wheels. I think we should forget about unassisted aerodynamic take-off. It's hideously against all the lore.
Do you consider T5 "hideously against all the lore"?

Image
by AnotherDilbert
Sun Jan 27, 2019 10:42 pm
Forum: Traveller
Topic: A lot of worlds over 1g gravity. How do 1G thrust ships take off?
Replies: 183
Views: 5655

Re: A lot of worlds over 1g gravity. How do 1G thrust ships take off?

However, changing load should change the acceleration. I can't wait for the new rules that require recalculating acceleration every game turn as you burn off fuel. :-) It's quite simple, you use Tsiolkovskys Rocket Equation: https://wikimedia.org/api/rest_v1/media/math/render/svg/d212c655d5dffc2d6e...
by AnotherDilbert
Sun Jan 27, 2019 10:28 pm
Forum: Traveller
Topic: A lot of worlds over 1g gravity. How do 1G thrust ships take off?
Replies: 183
Views: 5655

Re: A lot of worlds over 1g gravity. How do 1G thrust ships take off?

CT had repulsor fields at ground starports to help heavier ships taking off (more rules miasma...) Since we had Repulsors in HG, that wasn't much of a problem? However the idea that the wings on some ships provide enough lift to take off violates basic aerodynamics. Traveller ships are too heavy wi...
by AnotherDilbert
Sun Jan 27, 2019 9:00 pm
Forum: Traveller
Topic: A lot of worlds over 1g gravity. How do 1G thrust ships take off?
Replies: 183
Views: 5655

Re: A lot of worlds over 1g gravity. How do 1G thrust ships take off?

Despite this, 1G is the standard for civilian ships. Yeah, right. This is of course a good question. Why isn't, say, the iconic Free Trader more capable? Let me illustrate why I think M-1 makes sense: The standard Free Trader (with custom hull): https://i.imgur.com/qTNqspI.png It just about breaks ...
by AnotherDilbert
Sun Jan 27, 2019 5:12 pm
Forum: Traveller
Topic: Accelerator shotguns?
Replies: 20
Views: 1422

Re: Accelerator shotguns?

A gyrostabiliser would stop the gun jumping around as you fire, not stop the kick?

So, it would help to not throw off the aim as you fire, but would not help much in zero-g.
by AnotherDilbert
Sun Jan 27, 2019 4:55 pm
Forum: Traveller
Topic: A lot of worlds over 1g gravity. How do 1G thrust ships take off?
Replies: 183
Views: 5655

Re: A lot of worlds over 1g gravity. How do 1G thrust ships take off?

You’re taking the combat movement rules, which are entirely different from those that govern normal ship movement, and applying them to whether or not a ship can take off. Yes, those are the rules for normal ship movement. They are the basis for the travel time formulas. Even this logic, of course,...
by AnotherDilbert
Sun Jan 27, 2019 3:58 pm
Forum: Traveller
Topic: A lot of worlds over 1g gravity. How do 1G thrust ships take off?
Replies: 183
Views: 5655

Re: A lot of worlds over 1g gravity. How do 1G thrust ships take off?

Sigtrygg wrote: They don't have to have wings - a streamlined lifting body with TL9+ computer controlled control surfaces will suffice.
OK, not wings but aerodynamic lift.

I'm personally not fond of calling the Scout a lifting body, but T5 is what it is...
by AnotherDilbert
Sun Jan 27, 2019 3:51 pm
Forum: Traveller
Topic: A lot of worlds over 1g gravity. How do 1G thrust ships take off?
Replies: 183
Views: 5655

Re: A lot of worlds over 1g gravity. How do 1G thrust ships take off?

Wings take-off with thrust less than gravity needs runway. Possible but i never heard of it within the setting for regular spacecraft. Assuming no counter-gravity. It's mentioned in some early adventures, e.g.: A shuttle flight from Aramanx Starport brings the party to Seniek, the capital of the Un...
by AnotherDilbert
Sun Jan 27, 2019 8:51 am
Forum: Traveller
Topic: A lot of worlds over 1g gravity. How do 1G thrust ships take off?
Replies: 183
Views: 5655

Re: A lot of worlds over 1g gravity. How do 1G thrust ships take off?

The m-drive is gravitic? Yes. (Whatever that means.) Is the thrust relative to the local gravity? No, it is added to gravity, or subtracted as the case may be. Anti-grav neutralises local gravity then the ship does 1G on top of that? Ships don't necessarily have A/G drives in addition to M-drives. ...
by AnotherDilbert
Tue Jan 15, 2019 9:44 pm
Forum: Traveller
Topic: Firing with a scope...modifer?
Replies: 2
Views: 509

Re: Firing with a scope...modifer?

Trait Scope, Core, p75. Basically you get a range bonus, not a DM to attack.
by AnotherDilbert
Wed Jan 09, 2019 11:12 pm
Forum: Traveller
Topic: Great White Fleets... in spaaaayyyccceeee!
Replies: 24
Views: 1595

Re: Great White Fleets... in spaaaayyyccceeee!

Wasn't the Azhanti the show off ship for some time? It displays a diversity of offensive firepower in a small package saying "You think this impressive? I fail to see anything impressive about the AHL, it's near complete lack of defences makes it not a combat unit, but a scouting unit (just like th...
by AnotherDilbert
Wed Jan 09, 2019 6:26 pm
Forum: Traveller
Topic: Great White Fleets... in spaaaayyyccceeee!
Replies: 24
Views: 1595

Re: Great White Fleets... in spaaaayyyccceeee!

It's not size that is impressive, it's concentrated combat power that is impressive. A few small, out-dated (pre-dreadnought) battleships wasn't all that impressive, but the numbers and ability to deploy them on the other side of the globe was impressive (to anyone but the Royal Navy). Today a tour ...
by AnotherDilbert
Tue Jan 08, 2019 3:07 pm
Forum: Traveller
Topic: Accelerator shotguns?
Replies: 20
Views: 1422

Re: Accelerator shotguns?

NOLATrav wrote: We could meet in the middle and say 3 kg?
Your guess is as good as any other.
by AnotherDilbert
Mon Jan 07, 2019 10:30 pm
Forum: Traveller
Topic: Large Scout Ships?
Replies: 27
Views: 1789

Re: Large Scout Ships?

Sigtrygg wrote: It's not a prototype, ...
Nothing stops you from building your entire fleet with "prototype" systems. It's just very expensive.
by AnotherDilbert
Mon Jan 07, 2019 10:27 pm
Forum: Traveller
Topic: Accelerator shotguns?
Replies: 20
Views: 1422

Re: Accelerator shotguns?

NOLATrav wrote: Boarding Shotgun: TL 9, Range 20m, 4D, 2kg, Cr600, 6 rds (Cr20), Zero-G, Ignore Dodge
2 kg is too light? A regular shotgun is 4 kg, and the major difference is the shell fired. Too low weight also increases recoil, which is exactly what we want to avoid.
by AnotherDilbert
Mon Jan 07, 2019 10:14 pm
Forum: Traveller
Topic: Large Scout Ships?
Replies: 27
Views: 1789

Re: Large Scout Ships?

Sigtrygg wrote: ... and the other thing of note is that it is a jump 5 ship in the year 434...
Which is perfectly acceptable in the current systems (MgT2, T5) with prototype drives.

Example:
Image

It would also imply prototype J-8 X-boats in 1100...
by AnotherDilbert
Mon Jan 07, 2019 7:19 pm
Forum: Traveller
Topic: Large Scout Ships?
Replies: 27
Views: 1789

Re: Large Scout Ships?

CS S9 Fighting Ships, p9 wrote:Scouts: The Scout Service controls a wide variety of craft up to cruiser class, but scouts proper are vessels up to 200 tons designed for exploration, survey, and courier work.
CS S9 Fighting Ships, p9 wrote:Cruisers: ... Sizes range from 20,000 to 100,000 tons.