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MH60AV8R

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    Bottle Rocketeer
  1. As you can see in the picture, there are no pods available in the VAB running 0.90 64 bit version. When I first enter the VAB, I can not move around the VAB until I choose a pod (which does show up at first but without a tab on the left). After I choose a pod I can then move around the VAB but if I delete my pod I can not choose another pod because there is no tab on the left available to choose another one. Any help?
  2. Took this pic the other day... I also took one of my first career mode landing (crash?) on the Mun...the plaque read "Any landing you can moonwalk away from...". I crack my self up...
  3. Pandora's box opened...walking away now...thanks for answering my original question K^2! I like math as much as the next person but this is a little bit next level for me.
  4. I really appreciate your help K^2. It's been awhile since I took an orbital mechanics class. Can you explain why we calculate both the apoapsis and periapsis velocities? I figured out where you got the 580.63 number from. You took the difference of the orbital velocity and apoapsis velocity which was 9.41 and added it to the periapsis velocity to get the total required. So, from my understanding, we calculated we needed 571.22 m/s of velocity to get to 214km altitude and 9.41 Delta V to circularize?
  5. So I'm having a little trouble understanding where the following numbers came from: "You need 551.71m/s to circularize" and "The total delta-V required to reach orbit, assuming Eastward launch from equator is, therefore, 580.63m/s" I got the rest of the numbers figured out but I can't figure out where the 551.71 comes from. Also, the 580.63 is very close to what was calculated at 580.26 m/s, why are these different?
  6. Ok, figured out the G and the M. I also found the equation you used. You worked the problem backwards from what I was asking though. Lets say I am parked in orbit, what Delta V does it take to get from that orbit to the surface?
  7. Sorry, I posted that last post and didn't see you had responded. K^2, I like the math you presented. Where did you get the equation you used for the first Periapsis equation? The equations I was using were Delta V1=sqrt(Mu/r1)*(sqrt(2*r2/r1+r2)-1) and Delta V2=sqrt(Mu/r2)*(1-sqrt(2*r1/r1+r2)). The equation you used looks like a derivation of the one I'm using. What are the definitions of 'M' and 'G'? And why did you use the average of the radii?
  8. Anyone else care to weigh in? This is REALLY bugging me because math doesn't lie...and don't say to download a Mod because I like the vanilla version of things.
  9. Hey guys, I'm trying to figure out how to calculate the Delta V required to get from Kerbin surface to orbit (any alt) and from Munar orbit to Munar surface. Basically I'm trying to get my numbers to come out similar to the Delta V map numbers. I know the Hohmann Transfer equations and Delta V equations that I need to use. I understand that the Kerbin to orbit calculation might be a little convoluted due to the atmosphere so if I have to hit the "I Believe" button, I will. Basically I am using this example: The Delta V map shows from a 14km munar orbit it requires 640 Delta V to land. Im using a Mu value of 6.5138398*1010 m3/s2 and a Munar radius of 200 km. r1=214000 m and r2=200000 m. If I plug the values into the Hohmann equations I only get between -9.4 and -9.7 m3/s2 Delta V depending on whether I use delta v1 or delta v2 equation respectively. Where am I going wrong?
  10. I docked two spacecraft without RCS installed...because I'm an idiot and forgot to install it...
  11. You won't have to drop any maneuver nodes anywhere either. A simple retrograde burn will suffice once you are in the Mun's SOI.
  12. As soon as you enter the Mun's sphere of influence, point towards your yellow retrograde marker and burn for a few seconds. You should see your Perigee appear from the surface of the Mun. Get it to rise to an altitude you are happy with, then as you approach the Perigee burn retrograde again to get your Apogee to begin to come down into an orbit. If you don't do that then you will basically use the Mun to slingshot yourself out of orbit. I hope this was easy to understand. No offense to the previous posters but I had a hard time understanding what you all were trying to say (though I do know what you were trying to say).
  13. B.S. in Aerospace Engineering. Had a few orbital mechanics and rocketry design classes when I was in college. I enjoy the math as it makes the design process easier and it isn't just build, test, fail, modify, test, fail, modify, test, success!
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