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About Wanderfound

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    Mach 6 is my launchpad.
  1. I'll say. To reinforce that point, this: https://kerbalx.com/Wanderfound/Kerbotruck-Compact-Lander ...is capable of easily lifting sixty tons of payload to LKO. With six RAPIERs. You need enough engine to reach takeoff speed before the end of the runway. That's all. Minimise drag, minimise excess weight, build in a bit of wing incidence so you can keep the fuselage pointed prograde while you climb. Level off if necessary to break transonic, climb to about 15,000m for the speed run, crank it up to 1,500m/s then climb to 29,000m before switching the RAPIERs to rocket mode. Do it right and you'll still be at 1,400m/s or better when you switch over and carrying a fair bit of vertical velocity as well.
  2. Isolate your flight controls: set elevators to pitch only, rudder to yaw only, ailerons to roll only. If you still have instability in the roll axis, you can correct it with dihedral. Angle some of the lifting surfaces (wings or horizontal stabiliser or both) up at the wingtips. https://en.wikipedia.org/wiki/Dihedral_(aeronautics)
  3. In that case, the problem is some combination of poorly placed landing gear and insufficient pitch authority. The rearmost landing gear should be just behind CoM. Judging by the picture, that seems to be already okay or close to it. The elevators require sufficient power to control pitch. Are you certain that pitch is activated on your horizontal tail surfaces? And is it deactivated on the ailerons and flaps on the wings? If you try to lift the nose while the plane is stationary, what do the control surfaces do?
  4. Does it fail to rotate (front wheel stays on the ground) or does it rotate (lift the front wheel) but fail to lift off despite that?
  5. What's the total ΔV requirement for a Laythe return? Craft file at https://www.dropbox.com/s/mkniu3tnpnzd9qc/Kerbodyne Pathfinder.craft?dl=0
  6. You need to build so that the only point of contact between the cargo and the cargo bay is via the docking port. If there isn't enough clearance, the parts won't separate cleanly, as you've found. A side effect of this is that you need to place the docking port in a position that isn't easy to reattach to. But this can be overcome: Apart from the landing gear trick shown there, you could also use RCS or Vernors to boost a rover up to a high-mounted docking port. Just make sure that you test all of your docking/undocking proecedures before you fly off anywhere, and have a peek into the cargo bay during flight to check for sagging. Time acceleration will aggravate that issue if it is present.
  7. Alternately: 1) Launch an SSTO to LKO. Build that SSTO with a docking port inline with the centre of thrust. Refuel it in LKO. 2) Launch a drop tank assembly. Dock it to the SSTO. 3) Use the fuel in the drop tanks to get to Laythe, discarding them as they empty. 4) Arrive at Laythe fully fuelled. Like so:
  8. General tips: it's very Kerbin-ish, but a bit smaller. So the gravity is less and the atmosphere is thinner. This means that you need to set your aerobraking altitudes a fair bit lower than you would on Kerbin, and the thin air raises aircraft stall speeds and lowers parachute effectiveness. A sea-level landing on Laythe is like a high-altitude landing on Kerbin. If you're going to Laythe, it really is worth it to take a seaplane. It's the best way to get around out there. To do that, you've got two options. Either a short range seaplane with a rocket to push it to Laythe (as shown above) or a big self-sufficient Nuke/ISRU-equipped jobbie that can do it all in one (as seen below).
  9. You can get a crewed return mission with a full science load to pretty much anywhere for under √200,000. A one-way probe mission to just about anywhere can be done for pocket change; √20,000 or less. For an easy target like Duna, a very small and low-tech rocket can manage it; just a few thousand credits.
  10. A beginner's demo: https://imgur.com/gallery/0zCVG A fairly foolproof guide through the first couple of flights, up to your first orbit.
  11. Will comfortably handle 60 ton payloads.
  12. Only 1,983m/s, but I'm claiming style points for aesthetics.
  13. One RAPIER up, one RAPIER down. No staging, no other engines. Just try to figure out the most efficient load-carrying combination of wings and tanks that you can get to orbit and back down again.
  14. This is very basic: 1) Fly an SSTO to LKO (a 70 x 70 or higher orbit) and then back to a safe horizontal landing at the KSC runway. 2) Engine is limited to one RAPIER only. All stock, no physics or part altering mods. 3) Must be crewed, with a cockpit. No drones, no command chairs. 4) Highest ΔV in LKO wins. It's a test of building and piloting efficiency. How much fuel can you hoik into LKO on a single RAPIER? LEADERBOARD Rosvall 2,792m/s Zolotiyeruki 2,766m/s Foobar 2,570m/s ManEatingApe 2,463m/s Wanderfound 1,983m/s