Orbiter-Forum  

Go Back   Orbiter-Forum > Orbiter Space Flight Simulator > Orbiter Web Forum > OFMM
Register Blogs Orbinauts List Social Groups FAQ Projects Mark Forums Read

OFMM Discussions for the OFMM project.

Reply
 
Thread Tools
Old 12-10-2011, 12:12 AM   #91
dgatsoulis
Orbinaut
 
dgatsoulis's Avatar
Default

Quote:
Originally Posted by Pipcard View Post
 And why would a mission fail? With quicksaves, you can only fail on purpose. Don't tell me I have to do the entire mission in one go.
I said the very same thing to my flight instructor. Now i'm driving a Smart.
dgatsoulis is offline   Reply With Quote
Old 12-10-2011, 12:21 AM   #92
astrosammy
Dash!
 
astrosammy's Avatar

Default

Quote:
Originally Posted by dgatsoulis View Post
 Now i'm driving a Smart.
Hey, cool, so I'm not the only one here?


To get back to the topic: What about a Deimos sample retrieval? Would be nice to get to both moons.
astrosammy is offline   Reply With Quote
Old 12-10-2011, 12:21 AM   #93
Arrowstar
Probenaut
 
Arrowstar's Avatar
Default

Quote:
Originally Posted by garyw View Post
 No you don't have to do the mission in one go but if something goes with a launch I think it would be more interesting if OFMM rolled with that failure. For example, if a mission to Mars fails because the burn is done incorrectly don't you think it would be more interesting to work with it rather than quit and reload?

Don't you think that every mission going perfectly is.. well, a little dull?
Agreed. Pilots need to be honest about their flights and the outcome. If you screw up and leave your payload/crew in interplanetary space with no way to come back, a number of interesting alternate missions suggest themselves. It also makes things a lot more fun. If you mess up, it's on YOU, not your ability to quicksave or restart Orbiter.

By the way, I'm happy with the mission list as is.
Arrowstar is offline   Reply With Quote
Thanked by:
Old 12-10-2011, 12:29 AM   #94
Chub777
Orbinaut
 
Chub777's Avatar
Default

Quote:
Originally Posted by Pipcard View Post
 So what you really meant was OFMM-3 (unmanned) goes to orbit Mars and we select a landing site, then OFMM-4 (manned) lands in a similar area on the Moon. I was sort of confused by your wording.
Exactly. Apologies for the confusion.

Quote:
Originally Posted by garyw View Post
 Fair point - James cook in place of the cosmos.
The James Cook also has more docking ports (I think it has 8 or 9).

Last edited by Chub777; 12-10-2011 at 12:37 AM. Reason: Typo
Chub777 is offline   Reply With Quote
Old 12-10-2011, 12:38 AM   #95
Kveldulf
Orbinaut
Default

Quote:
Originally Posted by garyw View Post
 No you don't have to do the mission in one go but if something goes with a launch I think it would be more interesting if OFMM rolled with that failure. For example, if a mission to Mars fails because the burn is done incorrectly don't you think it would be more interesting to work with it rather than quit and reload?
Don't you think that every mission going perfectly is.. well, a little dull?
This. The most fun I had in Orbiter was after I failed a Mercury landing. I was reaching for the close button when I decided to try and save my XR2 (and lone surviving crew member).

Long story short, scooping up an XR2 in solar orbit with a strict time limit was more fun than the mission I had planned.
Kveldulf is offline   Reply With Quote
Old 12-10-2011, 01:01 AM   #96
Pipcard
mikusingularity
 
Pipcard's Avatar

Default

(01.)
Quote:
Originally Posted by Arrowstar View Post
  It also makes things a lot more fun.
Don't you mean more tragic?


(02.) If we're sending XR2s to Mars, this is what the configuration might look like:


Not like this, because the bottom would go through the Cook.



(03.) For the XR2 lunar mission, how far should the XR2 be above the lunar surface just before starting the de-orbit and landing?

Last edited by Pipcard; 12-10-2011 at 03:08 AM.
Pipcard is offline   Reply With Quote
Old 12-10-2011, 12:00 PM   #97
garyw
O-F Administrator
 
garyw's Avatar


Default

Quote:
Originally Posted by Kveldulf View Post
 This. The most fun I had in Orbiter was after I failed a Mercury landing. I was reaching for the close button when I decided to try and save my XR2 (and lone surviving crew member).

Long story short, scooping up an XR2 in solar orbit with a strict time limit was more fun than the mission I had planned.
I've not had anything that fun but I've had a few satellites not launch as planned and wind up as debris in the ocean.

Quote:
Originally Posted by Pipcard View Post
 (01.) Don't you mean more tragic?
History shows us that tradegy and spaceflight go hand in hand.

Quote:
Originally Posted by Pipcard View Post
 (03.) For the XR2 lunar mission, how far should the XR2 be above the lunar surface just before starting the de-orbit and landing?
Normally 60KM.
garyw is offline   Reply With Quote
Thanked by:
Old 12-10-2011, 08:59 PM   #98
Pipcard
mikusingularity
 
Pipcard's Avatar

Default

Some more questions about XR2 to the Moon and back:

-How much fuel/isp should there be?
-How much oxygen (I'm guessing 14 days)?
-How many people?
-How long should the EVA last?
-Will this involve a booster/launch vehicle for the XR2, or necessary fuel payloads?

Aerobraking:
-What's the optimum perigee and AOA for the XR2 returning to Earth?
-Is it normal for the temps to be at yellow?
-Is it normal to have to aerobrake two times?
Pipcard is offline   Reply With Quote
Old 12-10-2011, 09:08 PM   #99
Cras
Spring of Life!
 
Cras's Avatar
Default

I am of the mindset that a launch vehicle is absolutely neccesary for an XR2 going to the Moon. I always see the XR2 being a Single State to Moon to be a bit too much magic.

For an aerobrake back on Earth, it can be done with one pass easily if using inverted attitude. But if we are to operate the XR2 in a more safe manner, an only allow for a heads up, heat shield down attitude for an flight into the atmosphere, the best I have ever done is a three pass aerobrake, then burning the mains for return to LEO.
Cras is offline   Reply With Quote
Old 12-10-2011, 09:29 PM   #100
Pipcard
mikusingularity
 
Pipcard's Avatar

Default

Quote:
Originally Posted by Cras View Post
 I am of the mindset that a launch vehicle is absolutely neccesary for an XR2 going to the Moon. I always see the XR2 being a Single State to Moon to be a bit too much magic.

For an aerobrake back on Earth, it can be done with one pass easily if using inverted attitude. But if we are to operate the XR2 in a more safe manner, an only allow for a heads up, heat shield down attitude for an flight into the atmosphere, the best I have ever done is a three pass aerobrake, then burning the mains for return to LEO.
I did two passes at just above 60 km, but the temps went yellow on the first one.
(I'm not bothering to do inverted)

A mission like this might take 10-12 days (so I think 14 days is a good oxygen level), but how many UMMUs will be aboard?

4 days to the Moon, 1-2 days on the Moon, 4 days back, and probably another day (including aerobraking orbits) makes 12 days.

Last edited by Pipcard; 12-10-2011 at 09:32 PM.
Pipcard is offline   Reply With Quote
Old 12-10-2011, 09:34 PM   #101
garyw
O-F Administrator
 
garyw's Avatar


Default

Looking over this thread it seems that there isn't too much dissent on the missions list I've posted so I'm thinking of moving things on to the missions assignment thread.

Any objections?

---------- Post added at 21:34 ---------- Previous post was at 21:31 ----------

Quote:
Originally Posted by Pipcard View Post
 Some more questions about XR2 to the Moon and back:

-How much fuel/isp should there be?
-How much oxygen (I'm guessing 14 days)?
-How many people?
-How long should the EVA last?
-Will this involve a booster/launch vehicle for the XR2, or necessary fuel payloads?
In order:
-As much as can be taken
- 14 days
- 6
- 2 hours 4 minutes
- Yes.

Quote:
Originally Posted by Pipcard View Post
 Aerobraking:
-What's the optimum perigee and AOA for the XR2 returning to Earth?
-Is it normal for the temps to be at yellow?
-Is it normal to have to aerobrake two times?
- 165km
- No.
- Yes.
garyw is offline   Reply With Quote
Thanked by:
Old 12-10-2011, 09:42 PM   #102
Pipcard
mikusingularity
 
Pipcard's Avatar

Default

Quote:
Originally Posted by garyw View Post
 - Yes.
Did you mean the booster, or the fuel payloads?

Quote:
Originally Posted by garyw View Post
 - 165 km
Do you mean 65 km, as that is kinda high for aerobraking. What should the AOA be?
Pipcard is offline   Reply With Quote
Old 12-10-2011, 09:43 PM   #103
garyw
O-F Administrator
 
garyw's Avatar


Default

Quote:
Originally Posted by Pipcard View Post
 Did you mean the booster, or the fuel payloads?
Booster.

Quote:
Originally Posted by Pipcard View Post
 Do you mean 65 km, as that is kinda high for aerobraking. What should the AOA be?
I did, good spot.
garyw is offline   Reply With Quote
Thanked by:
Old 12-10-2011, 09:50 PM   #104
Pipcard
mikusingularity
 
Pipcard's Avatar

Default

Quote:
Originally Posted by garyw View Post
 Booster.
Would Energia be a good one?

Quote:
Originally Posted by garyw View Post
 -As much as can be taken
I'm talking about the fuel isp levels:

1 = Realistic (ISS Only) [20914]
2 = Default (ISS and Moon) [25962]
3 = Medium (ISS and Moon w/reserve) [32981]
4 = Stock DG (Moon w/large reserve; this is the original stock DG setting) [40000]

What should it be?
Pipcard is offline   Reply With Quote
Old 12-10-2011, 09:51 PM   #105
garyw
O-F Administrator
 
garyw's Avatar


Default

Quote:
Originally Posted by Pipcard View Post
 Would Energia be a good one?
Yes.

Quote:
Originally Posted by Pipcard View Post
 I'm talking about the fuel isp levels:

1 = Realistic (ISS Only) [20914]
2 = Default (ISS and Moon) [25962]
3 = Medium (ISS and Moon w/reserve) [32981]
4 = Stock DG (Moon w/large reserve; this is the original stock DG setting) [40000]

What should it be?
3.
garyw is offline   Reply With Quote
Thanked by:
Reply

  Orbiter-Forum > Orbiter Space Flight Simulator > Orbiter Web Forum > OFMM


Thread Tools

Posting Rules
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
Forum Jump


All times are GMT. The time now is 02:14 PM.

Quick Links Need Help?


About Us | Rules & Guidelines | TOS Policy | Privacy Policy

Orbiter-Forum is hosted at Orbithangar.com
Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright 2007 - 2012, Orbiter-Forum.com. All rights reserved.