Changing a vessels thrust or mass

[jimyjim]

Hello all
I am trying to send a large(-ish) payload to the moon, and am having a hard time gaining enough velocity to even
come close.

I was wondering if there is perhaps a config file I could open, and a number somewhere in that file which I could
double, or triple or so on, to hugely increase a vessels thrust. I have been using Kulch's tugs for this, to let you know
whats going on.

I know this solution will not be realistic, but it will help with a few other things as well. Any ideas would be hugely
appreciated

James

[ouch]

Oh, I know that only one, Deltaglider IV.

Do you have a Deltaglider IV?

If you have, install it and click the configuration.

Now, you can now changing the thrust or mass.

the mass can change if you are edit in number of passengers or fuel reserved.

Thank you for question!:)

[James.Denholm]

Use more tugs! Try a 'train', if you will.

Edit: Unknown, I see no reference to the DGIV. Not everyone likes it, and not everyone uses it. The DGIV is far too unrealistic and/or auto-pilot filled for some tastes.



Post Edited ( 04-14-08 09:04 )

[jimyjim]

Thanks for replying y'all . To clarify, yes James.Denholm I'm not using the DGIV, I have attached a soyuz to the DM
and Smerch tug for a trip to the moon.


I have also added a module to front as it looks pretty swish, but I have reduced the mass of this to zero by changing
it's cfg file. However, when i fire the main engine, the speed increases painfully slowly and I know I will not make it to
the moon.

Is there a similar way to adjust the other vessels masses?, because the contents of their cfg's do not contain
a "mass". They simply point me in the direction of their module files, which are .dll's. Is their a way of altering these to
have the desired effect?  (you see and am not a programmer or anything )

Woohoo difficult questions for tuesday I know

[Urwumpe]

Don't set mass to zero. Make it something like 25 kg or so. But never zero.

[Dig Gil]

Urwumpe wrote:
Don't set mass to zero. Make it something like 25 kg or so. But never zero.

Once I changed the mass of a DGIV's payload to negative numbers beyond the DGIV's mass thinking it was gonna
float on the air, but rather floating, when I started main engines it flown backwards.

[jimyjim]

Ah yes good point, negative or zero mass sounds like it will really screw up acceleration

Still, anyone know how you change the thrust produced by a vessel's main engines?

[Urwumpe]

You just set the vacuum thrust higher? You can't always do that, some add-ons are closed source or require at least
programming skills.

[jimyjim]

Allrighty, where can I find the file that changes the vacuum thrust?

[Urwumpe]

For which vessel?

[Dig Gil]

Try giving negative engine power.

[jimyjim]

Smerch spacetug "http://www.kulch.spb.ru/Eng/downloads.shtml" is the vessel I wish to know how to adjust

[Urwumpe]

Can't get adjusted. Also, it should have more than enough power for getting you somewhere.

The important figure in space is not pure thrust, but Delta-V. If a burn takes a bit longer, you can always attempt splitting
it into two burns, but the Space tug should have enough average acceleration to get you to the moon in one step. Did you
attempt calculating your stack using the rocket equation?

[computerex]

Hi. Try this: http://orbiter-forum.com/showthread.php?p=15279#post15279
I hope it helps.

[Kadet]

Negative weight?  If you were to do that, you would have, like, dark matter all over your ship, destroying the atoms in
it.

[jimyjim]

I can't say I have tried using the rocket equation but thanks for the suggestion, I have actually used burntimecalc
which I think must probably use an euation not a million miles from that of Mr Tsiolkovsky. In any case it works fine!

[jimyjim]

To computerex, thanks for directing me there, It has allowed some interesting tweaks for sure , very useful when
running low on the old fuel

[computerex]

jimyjim wrote:
To computerex, thanks for directing me there, It has allowed some interesting tweaks for sure , very useful when
running low on the old fuel

Thank you, I made it when I saw this post. Do you have the latest version? It allows gimbling and two handy autopilots.

[SlyCoopersButt]

That's a nifty MFD! Quite good. It just needs to be able to adjust thruster power now and it'll be perfect.

[computerex]

SlyCoopersButt wrote:
That's a nifty MFD! Quite good. It just needs to be able to adjust thruster power now and it'll be perfect.

It already lets you do that.

[SlyCoopersButt]

I have scoured it's features and I can't find such a feature. And I don't mean thrust level, I mean the engines actual
power.

[computerex]

SlyCoopersButt wrote:
I have scoured it's features and I can't find such a feature. And I don't mean thrust level, I mean the engines actual
power.

Yes, engine power, by changing the ISP and vacuum thrust rating.
Example, modifying the OMS max vacuum rating and ISP to perform runway takeoff and aerobatics:





Post Edited ( 05-18-08 08:06 )

[SlyCoopersButt]

Strange, It didn't work for me before but now it does. Shuttles pretty fun to fly like a plane!