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Hello all,

I'm looking for some tips on lander designs, i've got onto the mun with one :D but i didn't have enough fuel to get off again.

here is my design on the mun

iOqV90p.png

does anyone have some better designs?

cheers,

Toby

Edited by sal_vager
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That looks like a very large engine for landing and taking off of Mun with. Ideally you should have a small stage to do the braking burn for you, basically zero out your orbital velocity cut it loose and just let the lander drop and kill vertical velocity just before landing. Lights pointing towards the Munar surface are good for judging how far you are off the surface. This approach should save the maximal amount of fuel in your lander as possible

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I would use the poodle engine and the fuel tank twice (16) that size. The poodle engine is more efficient and you don't need much power to take off from the mun. That should be plenty to at least get into orbit. If you want to go all the way to Kerbin, I would use the fuel tank four times (32) that size.

Other than that, it looks good!

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For anyplace that is both low gravity and airless, and for a load over 4 tons, you have no reason to use anything other than an atomic engine. Stick one up the bottom cone with clipping, or use the smallest tanks and attach a pair to the sides with a hose to the fuel tank you have. With that, your lander should be able to go to the Mun and back to Kerbel all by itself.

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Even the Poodle is overkill for a small Mun lander. An LV-909 is perfect for a vehicle of this size.

The LV-N is more efficient, but it's not well suite for small landers due to its size and would require some compromises to the design.

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for starters, the stock Two-stage Lander kindly offered by Squad ain't bad.

also, a lander which has to return to Kerbin will need some 300 m/s of delta-v more than one that simply has to get back to Mun orbit and wait for another spacecraft.

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I would use the poodle engine and the fuel tank twice (16) that size. The poodle engine is more efficient and you don't need much power to take off from the mun. That should be plenty to at least get into orbit. If you want to go all the way to Kerbin, I would use the fuel tank four times (32) that size.

Other than that, it looks good!

That is some serious overkill. It only takes about 1000 delta-v to get from the Mun back to Kerbin. Adding the poodle engine actually adds too much weight, as does the larger fuel tank. For a craft of that size, the only thing you need to get back from the Mun is a single LV-909 engine. That would give the pictured craft a delta-v of around 2300-2700 , depending on how much monopropellant it is carrying. More than enough to land, and get back to orbit where it can dock with the returning craft. Just swap out that heavy big engine for the smaller more efficient one.

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