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Elon Tusk

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Posts posted by Elon Tusk

    Mission failed...

    in Welcome Aboard

    Posted

    1 hour ago, Spaceman.Spiff said:

    If you have multiple kerbs in the lander you could EVA one and have them take control of the other vessel

    I can't, there are only big science module, I thought it is controllable...

    Mission failed...

    in Welcome Aboard

    Posted

    I was doing science on dres, using Apollo style. It was ez ofc, but... I didn't expect that you can't dock 2 ships, if 1 of them isn't controllable. 

    PLEASE help how to comeback to home. I have 1200∆ m/s and it's enough back to home, but speed in the atmosphere is so high, near 5K... 

    The best SSTOs for planets with atmosphere.

    in Welcome Aboard

    Posted

    Welcome back 

    I Built my own SSTO to Duna, it was ok until I noticed that my plane can't fly... It's just falling down like rocket... Of course I jumped and survived... My mission was successful for 50%. Why? Duna has atmosphere and I can like glide and lift my plane... But... No...

    My plane btw: https://imageupload.io/i/Dwmkp3K0E8

    And I know, I lost 1 my R.A.P.I.E.R, but it was my main problem. Please help why I'm failing down so fast.

    What the best vacuum engines

    in Welcome Aboard

    Posted

    On 7/28/2021 at 9:08 PM, GoSlash27 said:

    How long?

     

    Duna for example

    On 7/29/2021 at 2:54 PM, jimmymcgoochie said:

    Are your five stranded on the surface of the Mun or in orbit?

    If in orbit then things are a bit easier and just building something efficient is good enough. Engines like the Terrier (1.25m), Cheetah (1.875m, Making History DLC) and Poodle (2.5m) are the best options as they provide high ISP, with each step up in size coming with twice the thrust and twice the mass, more or less, so it’s pretty easy to scale up. I would stick a Mk1-3 pod (3 crew) under a passenger cabin (2 crew) to hold the five of them- Hitchhikers are sensitive to heat much more than crew pods and the crew pods are better protected and more stable during re-entry- with a probe core inside a service bay on top so it’s controllable with nobody aboard, then a heatshield with 20% ablator (or even less if you have the re-entry heating set below 100%) and then your upper stage powered by either a Terrier or two or a Poodle (or Cheetah if you have MH). It doesn’t take a huge amount of fuel to get good range out of them and by using a powerful first stage engine combined with some chunky boosters you should have oodles of delta-V to get to the Mun, meet up with the crew and then bring them back.

    For a crew stuck on the surface things are a bit more difficult- the increased delta-V needed is a factor but you also need a high enough TWR to land (this isn’t too difficult for the Mun) and to land vaguely near them. You might find it easier to send out a small rover that can carry crew so that if your landing is a bit inaccurate you don’t have to walk them all the way over individually.

    The alternative method is to just use external seats to carry the crew, making the whole thing much lighter but also increasing the risk of accidentally cooking your crew on re-entry. Putting the seats inside a service bay should protect them and making everything smaller and lighter will also make it easier.

     

    The NERV has the best ISP of any rocket engine in KSP, but it’s also heavy and you can only use a specific set of fuel tanks as it uses just liquid fuel. For anything below about 4500m/s, the Terrier is the better option due to its vastly lower weight, not to mention cost. The MH Wolfhound is the best bipropellant engine in KSP in terms of ISP and one of the best vacuum engines in terms of thrust, but it’s pretty heavy for the thrust you get out of it compared to the Poodle; use with caution. The Rhino is massive and while its ISP is respectable and its thrust is the highest of any single engine in space (a whopping 2MN!)  it’s just too big to be used for something like this.

    I already saved them ;) but thx for tips

    Why this plane can't fly?

    in Welcome Aboard

    Posted

    1 hour ago, Vanamonde said:

    That seems slow for a plane of that size. Does it need to be that big? 

    Now, not. I have another mission XD and I need to rescue kerbals from Mun, I built Matt's SSTO Spaceliner and... So hard to fly up....

    Why this plane can't fly?

    in Welcome Aboard

    Posted

    1 hour ago, Vanamonde said:

    This is a common problem for new players. :D  KSP wings produce no lift at zero angle of attack. Adjust the landing gear so that the hose is higher than the tail and you'll start to generate lift while going down the runway. Other measures may also be called for but see what that does for you. 

    I've already did it on start... Small landing gear on back and medium on front.

     

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