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going into orbit


mardi
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12 minutes ago, Jas0n said:

I mean... technically if you have enough fuel you can just go straight up from launch and end up in a sun orbit.

Yes... but the delta-v required to get out of Kerbin's SoI this way is more than to get into orbit around Kerbin.

Rule of thumb; straight up is never the cheap answer. You lose 10m/s per second as the planet pulls you back, and when you're talking multi-minute burn times, it quickly becomes enormous. Gravity is a cruel mistress :( 

Edited by eddiew
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1 minute ago, eddiew said:

Yes... but the delta-v required to get out of Kerbin's SoI this way is more than to get into orbit around Kerbin.

Rule of thumb; straight up is never the cheap answer ever. You constantly lose 10m/s per second. Gravity is cruel :( 

harder in terms of delta-v, easier in terms piloting. 

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13 hours ago, Vanamonde said:

The home planet requires much, MUCH, MUCH less dV to reach. :)

Not sure what you mean by your question, though. What are you trying to do? 

trying to orbit kerban for spying on my self

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31 minutes ago, Jas0n said:

harder in terms of delta-v, easier in terms piloting. 

From a launch, it is MUCH easier to orbit the Sun. 

Build a rocket, fairly big, but doesn't have to be huge. 

Point straight up.  Turn on SAS.  Fire engines.  Keep going till you enter Solar orbit. 

Orbiting Kerbin, on the other hand, takes a lot more finesse.  Gravity turns, orital manuevering, controlled burns, etc. 

14 hours ago, mardi said:

is it is easier to orbit the sun or kerbal?

The word "easiest" is quite ambiguous in this situation, you'll have to clarify what you mean.  Easier could mean less work (Solar), or cheaper rockets (Kerbal). 

 

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1 hour ago, Jas0n said:

harder in terms of delta-v, easier in terms piloting. 

I'd argue that you'd spend more time in the VAB making a rocket that will break SoI by going straight up than you will waste by pressing w a few times during the ascent of a smaller rocket :) 

Also it's really hard to do anything useful with the resulting solar orbit unless your astro-fu is very strong.

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27 minutes ago, eddiew said:

Also it's really hard to do anything useful with the resulting solar orbit unless your astro-fu is very strong.

Very true!  But that is part B of the question, and it wasn't asked :)

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If you are inspired, then aim directly for the sun, and eventually your wings will be fried, and you will crash down into the ocean. My plane named icarus did this

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22 hours ago, 322997am said:

If you are inspired, then aim directly for the sun, and eventually your wings will be fried, and you will crash down into the ocean. My plane named icarus did this

PSA: Do not aim vessels directly towards the sun.  Burn orbital retrograde relative to the sun instead.

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On 3/5/2018 at 9:48 AM, suicidejunkie said:

PSA: Do not aim vessels directly towards the sun.  Burn orbital retrograde relative to the sun instead.

Or burn prograde relative to the sun until your apoapsis is really high, then burn retrograde there. Waaaaay less delta v.

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