Jens Lyn IV

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About Jens Lyn IV

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    Rocketeer
  1. Well here's a reusable Duna lander, designed to ferry 6 Kerbals between the surface and a nuclear powered mothership. The air brakes lower terminal velocity to ~200 m/s fully fueled, a load state it will not normally be in during descent. Air brakes shown extended. Not shown: refueling port. And I guess this also counts as a "lander", though its scope goes somewhat beyond that. This will take a crew of 6 on a round trip between the surface of the Mun and LKO, transferring to and from a simple SSTO for launch and landing. The awkward layout is dictated by the unreasonable mass of the Mk2 Lander Can and PPD-10 Hitchhiker Storage Container (5 t without monopropellant); 3 Mk1 Crew Cabins and BZ-52 Radial Attachment Points are much lighter (3.12 t), though they require a probe core for control. The radially attached parts also help increase drag for aerobraking. Still not shown: refueling port.
  2. The rightmost button (paper sheet under a magnifying glass) should give you a preview.
  3. Wow, you're right, the 2005 version is very similar. I'd heard of Kliper, but never really looked into it and didn't have it in mind at all during construction.
  4. Searching this forum for 'chibi' brings up a few tiny shuttle designs, but most are just scaled down, so I set out to build something with "proper" chibi/SD proportions. I quickly gave up trying to make an external tank and solid boosters work, so the orbiter sits on top of a liquid booster instead. Nonetheless, I think the result is kawaii: Shuttle-chan on the pad. Sayonara, Kerbin-san. Stage 1 separation. Circularising. Landing; engine bell hot from burning off excess fuel. Shuttle-chan parked in front of Tower-senpai. Shuttle-chan comes complete with an abort sequence and emergency parachutes: "Baka!" "Geez, Val, no need to get all tsundere." "Bill, you okay back there?" "Um, I guess..." "Bob? Bob! Bob, look at me. Use the bag. No, the bag!" If you're interested in boring technicalities, this next section is for you: The booster fins are too small to achieve static aerodynamic stability in the pitch axis; SAS prograde hold is mandatory during ascent. Planform of the orbiter. Stability is marginal* with full tanks... ...But improves as fuel is consumed. And finally, if you must have a copy of Shuttle-chan for yourself: Download *Not as suicidal as it looks here, thanks to a draggy fuel cell mounted high on the rear bulkhead.
  5. Derp derp herp* derp, derp hurr herp (durr) derp derp; durr hurr derp. Herp, herp derp herp hurr, derp-derp derp. Derp. Herp derp. Hurr durr. Derp derp derp. *Derp.
  6. I've been on a quest to design an efficient SSTO to get a crew of six to LKO and back, and it took me in a few different directions, so here are three rather different results: The reasonable solution; not the smallest, not the cheapest, but the fuel margin is very comfortable, and reentry is a cakewalk. The efficient solution. Slim fuel margin, scary reentry, high stall speed - but it'll hit 1650 m/s on the jet. The unreasonable solution: A triple-fuselage joke* of a spaceplane that performs a lot better than it has any right to. Seriously, how do three Mk1 fuselages generate less aerodynamic drag than a single Mk2 fuselage at zero angle of attack?! *Good luck reaching that docking port...
  7. The front page (not the forum home page) fails to load in Firefox, with a warning about an expired certificate.
  8. @HarvesteR was last seen puttering around the Gold Fields of Goat MMO Simulator. This isn't even his final form.
  9. But I'd still have to do it manually, and I'd rather keep my attention where it's needed. Airbreathers respond very sluggishly to throttle changes, and that can quickly get "interesting" when hovering...
  10. Here's my VTOL SSTO lifting body Laythe lander again, this time in a configuration that actually works on Laythe. As it turns out, Laythe's thinner atmosphere (60% of Kerbin's) reduces static thrust enough to require a third engine; hacking Kerbin's gravity to 0.8 g failed to account for this. The original version had insufficient thrust for hovering, but also carried excess oxidiser, so total mass remains 20 tonnes. The added forward control surfaces provide negative static stability at low fuel loads, easing the transition to retrograde flight. Tail-first handling is still a bit awkward since the control surfaces move the wrong way, but below 40 m/s the thrust vectoring and reaction wheels provide sufficient control authority. Finally, a small docking port allows refueling on the surface of Laythe. Thanks to the third engine, all that's needed for the initial launch to LKO is a pair of LF+O drop tanks. Not shown: drop tanks required for Kerbin launch. Forward control surfaces aid retrograde transition in dense air.
  11. This is still a WIP, but it works well enough. VTOL SSTO lifting body Laythe lander, 20 tonnes fully fueled, crew of six. Aerodynamically stable, which is bloody annoying when trying to go retrograde for the final descent and landing, but with some "inelegant" control inputs it goes tail-first with little difficulty. T/W is too low for Kerbin, but with gravity hacked to 0.8 g it achieves orbit and returns with fuel to spare for a precision landing.
  12. Are you implying that my piloting skills are inadequate?
  13. In this case, the fairing absolutely, indisputably increases drag. I built a replica based on your screenshots and tested it. Frontal area with fairing. Frontal area without fairing. Stable at high speed and high angle of attack. I know you already got this one to orbit, but next time you launch a girder structure, try without a fairing first.
  14. I made a taildragger. Not because that layout makes a lot of practical sense, but because it lets me place the cockpit downstream of the engines. This gives the pilot a very... Kerbal view. Yeehaw! Taxiing involves considerable guesswork... ...But it looks cool. Profile. Planform. Cargo bay and docking port opened, solar panels extended.
  15. Now that 1.1.3 is out, I have tested on a fresh KSP install with default settings, as well as with my preferred settings reinstated. I can no longer reproduce this bug. I see no direct mention of this in the patch notes, but Squad did fiddle with the orbit code in several ways. Whatever they did works for me. Marking as solved unless/until someone reproduces this in 1.1.3