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UFO-Mk2 by swjr-swis¨ag1: toggle VTOL engines¨ag2: toggle VTOL reverse thrust¨ag3: toggle HTOL engines¨ag4: toggle HTOL reverse thrust¨ag5: shutdown all engines¨ag9: open dock shield¨ag0: toggle ladders¨rudders deploy with breaks¨EAS available in dock.
A stock aircraft called UFO-Mk2. Built with 322 of the finest parts, its root part is probeStackLarge. Built in the SPH in KSP version 1.1.2.
- VTOL take-off: Set SAS to Stabilize mode, zero throttle, stage to engage all engines, then hit Action Group 3 to shut down the main/forward thrusters. Throttle up to lift off. The default probe core faces forward (airplane mode); if you prefer handling a VTOL with the navball looking into the sky, rightclick the shielded docking port and ‘Control from here’. RCS available for maneuvering.
- STOL take-off: Set SAS to Stabilize mode, zero throttle, stage to engage all engines. Throttle to lift off in less than half the KSC runway, and fly it like a (slow) plane.
- Both vertical and horizontal thrust can be reversed (ag 2 and 4 resp.). Keep in mind there’s a delay in the reversal, and thrust is considerably less when reversed.
- VTOL landing: vertical equilibrium with full tanks is at about 90% throttle at sea level, needing less when tanks empty or altitude increases. Horizontal velocity can be nullified by rolling and pitching small angles away from the vector. RCS is provided for additional assistance, but monoprop goes fast.
- STOL landing: approach can be much steeper than a regular plane, as engaging (air)breaks, main thrust reverser, and pitching up steeply while at full vertical thrust will kill all forward velocity in moments, and the VTOL thrust prevents a stall. The gear can survive a plonk, but 1.1.2 is glitchy about them, so don’t overdo it.
- Open de dock shield to find an EAS command chair, in case one of your Kerbals wants to fly this baby like a tank commander.
- You can put the saucer into orbit by using the size3 open node of the bottom-most fairing, the mass is balanced around that (so yes, it’ll look like a mushroom cap). If you place a TR-38-D decoupler under it, you can pull it down just free of the fairing shell with the offset gizmo, it’ll be just as strong as if it were directly attached, but you can add some struts if the space bothers you. Place a 2-stage size 3 rocket with size 2 boosters under this. Follow a slow gravity turn and stay in the prograde vector as much as you can - the fairings generate a great deal of drag, and it’s best to point above 45 degrees for at least the first 15km to punch through.
- Type: SPH
- Class: ship
- Part Count: 322
- Pure Stock
- Squad (stock)
Don’t take anything too seriously, I’m mostly just having crazy fun testing the (im)possibilites of flight, physics and design in the amazing sandbox that is Kerbal Space Program. Feedback is welcome!
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