Can't wait to see the next update! P.S: Is your Laythe lander a spaceplane? 'Cause I did one too! - - - Updated - - - After the design checked out, Felix was assigned to fly the Tri-Flyer up to Kerbin Station where it docked and was refueled for the mission. http://i.imgur.com/2ey9fOz.pngThe tanks and battery of the Try-Flyer were locked off and Felix transferred to the station. Meanwhile the tug rendezvoused with the station and awaited the release of the Tri-Flyer from the station. The Tri-Flyer was released as dead weight and grabbed by the tug. The tug proceeded to rendezvous with JEM once again. http://i.imgur.com/Q85hEEc.pngI then proceeded to pull off the coolest docking I've ever done. I carefully lined up on the axis of JEM carrying the Tri-Flyer as dead weight. The dockings had grown a bit routine for me, and I wasn't even using Docking Port Alignment Indicator most of the time, but it was invaluable for this. I changed attitude so that the tug was directly between JEM and the Tri-Flyer. I began to gently thrust back toward JEM, pulling the Tri-Flyer along. I minutely adjusted the alignment and then proceeded to undock the Tri-Flyer. I added a bit of additional thrust toward the JEM and then quickly off to the side to get out of the way. I switched the focus to JEM and watched as the Tri-Flyer glided in to dock with JEM. I got it on the second try. http://i.imgur.com/YuVncoI.pnghttp://i.imgur.com/QxB7cv1.pngA conference was called with the engineering staff and the consensus was 'More Fuel', so another mission was scheduled to deliver a final module to JEM. This time the new cargo drone was used for the delivery. http://i.imgur.com/1FXcD1S.pnghttp://i.imgur.com/xp2Y30F.pnghttp://i.imgur.com/uA8S3Vw.pngHere she is - complete. I pushed it as far as I thought I could go. TWR was 0.24, and dv with all lander tanks full and locked off was 3131 m/s. The huge uncertainty in the cost to capture and the viability of aerobraking at Laythe have left Bob and I with 'concerns' . http://i.imgur.com/XTqvEjp.png At this point I got a bit distracted with learning how to get Hummlebee to orbit atop the Orange Knight while the crew waited for the transfer window. Next time - we burn for Jool! Happy landings! - - - Updated - - - She's 306 tonnes and 199 parts. There are really only the two landers. The main lander and the Tri-Flyer. Happy landings! Trademark owned by Kerbfleet. How about trying a Reverse Tylo GravSlinTM*? *​Trademark owned by AddictionAeroworks